  This file is made from the help files in the PDD software.  Just type                         
  CNTL-F10 in PDD, and it will put you into the help system.  For your 
  convenience, the help files are combined in this file so that you can 
  easily print them.  Just type "copy readme.txt lpt1:" and this file will
  be printed on the printer that you have hooked up to your printer port.

                          
                          
                          TOP MENU  Page 1 of 2     
                                                                               
  The HELP facility can be called from ANY EX-PDD MENU by pressing [Ctrl][F10] 
                                                                               
   The 'Top Menu' is the first screen displayed when the EX-PDD program is     
   started.  To select a function, press one of the function keys (F1 - F10).  
   These keys are labeled on the last 2 lines of the screen.                   
                                                                               
   A status line on the 3rd line from the bottom of the screen gives the       
   current Online/Offline status of the system.  Status info. given are:       
                                                                               
     File Name: Default   - Named program on disk (8 characters max.)          
     Unit: S              - Station number of Online PLC (S or 0 - F).         
     Halt/Run/Error       - Halt/Run/Error status of PLC                       
     EX100/EX250/500/200B - PLC model number                                   
     2.0/4.0/8.0K         - Program memory capacity of PLC.                    
     ID: DEFAULT          - ID of program in PLC memory (10 characters max.)   
     Pages: 15      - Number of pages used by program in PLC memory (0-999).   
     Steps: 591     - Number of steps used by program in PLC memory (0-8192).  
                                                                               
    -                                  
  
  

                          TOP MENU  Page 2 of 2     
                                                                               
   The EX-PDD program operates in two different "environments".  These are     
   Online and Offline, which are selected by F6 from the Top Menu.             
                                                                               
     - When Offline - the ladder, block monitor, system information, I/O       
         allocation, and commentary are taken from the named program on disk.  
                                                                               
     - When Online - the ladder, block monitor, system information, and I/O    
         allocation are taken from the program in PLC memory.  The commentary  
         is taken from the named program on disk (disk programs are named      
         by selecting F7 from the Top Menu).                                   
                                                                               
   The EX-PDD program can be Temporarily or Permanently exited from the Top    
     Menu to MS-DOS by selecting F10.  When Temporarily exiting to MS-DOS,     
     the EX-PDD program will remain resident in memory.  To return from        
     MS-DOS to EX-PDD, type EXIT.                                              
                                                                               
   Press the appropriate function key to continue or exit help.                
                                                                               
    -                       END OF TOP MENU     
  
  

                SYSTEM AND CONTROL MENU  Page 1 of 1     
                                                                               
   The System And Control Menu allows selection of the following functions:    
                                                                               
               *  System Information (F1)                                      
                                                                               
               *  I/O Allocation (F2)                                          
                                                                               
               *  Load/Save/Compare (F3)                                       
                                                                               
       For a more detailed description of these functions, use the following   
           HELP function keys:                                                 
                                                                               
               F3 for help on System Information.                              
                                                                               
               F4 for help on I/O Allocation.                                  
                                                                               
               F5 for help on Load/Save/Compare.                               
                                                                               
                                                                               
    -             END OF SYSTEM AND CONTROL MENU     
  
                SYSTEM INFORMATION MENU  Page 1 of 7     
                                                                               
   When Offline, system information is displayed from the program on disk.     
       This information can be edited by positioning the cursor with the       
       arrow keys and entering the desired information.  The information is    
       saved to disk by pressing [F10], or canceled by pressing [Esc].         
                                                                               
   When Online, system information is displayed from the program in the PLC.   
       This information can be edited by pressing [F9], positioning the        
       cursor with the arrow keys, and entering the desired information.       
       The information is saved to the PLC by pressing [F10], or canceled by   
       pressing [Esc].                                                         
                                                                               
   The information that can be displayed and edited are:                       
       - Program ID (edit online or offline)                                   
       - Keep Area TOP (edit online or offline)                                
       - Memory Capacity (determined by PLC type chosen)                       
       - PLC type  (edit Offline only - use space bar to choose PLC type)      
       - System ID (Enter a 2 here if PLC is model EX25-1A or EX50-1A)         
   All other system information displayed cannot be edited.                    
    -                                  
  
  
                SYSTEM INFORMATION MENU  Page 2 of 7     
                                                                               
   The System Information Menu displays the following information:             
                                                                               
      Program ID - A PLC program indentification is displayed/entered here.    
         A program ID can be up to 10 characters long.                         
                                                                               
      Keep Area Top - The RW, D, C, and T registers are partitioned into       
         non-retentive and retentive areas.  The bracketed number defines the  
         beginning of the retentive range.  For example, an 86 in the brackets 
         for the T registers will make T000-T085 non-retentive and T086-T127   
         retentive.  Entering all blanks (spaces) in the numeric area for the  
         T registers will make all T registers, T000-T127, non-retentive.      
                                                                               
      Memory Capacity - This is the program memory capacity of the PLC.        
         Valid values are 2K, 4K, and 8K words of memory.  Memory capacities   
         for each PLC type are 2K or 4K for the EX250, 8K for the EX500, and   
         4K for the EX100 and EX200B.                                          
                                                                               
                                                                               
  
  
                SYSTEM INFORMATION MENU  Page 3 of 7     
                                                                               
   System Information displayed (Cont'd):                                      
                                                                               
      Used Page - Number of pages used in PLC program. The Used Page           
         information is updated in the ladder logic program on disk when       
         the program is loaded into the PLC. It is also updated offline        
         following a [Shift][F7](Valid Ladder),while viewing ladder logic.     
                                                                               
      Used Step - Number of steps (words) of memory used in PLC program.       
         The Used Step infomation is updated in the ladder logic program       
         on disk when the program is loaded into the PLC. It is also updated   
         offline after executing a [Shift][F7](Valid Ladder).                  
                                                                               
      PLC type - When Offline; this is the PLC type that the program is        
         intended to run on.  The PLC type can be selected by                  
         positioning the cursor into this field and pressing [Space].          
         When Online, this information is read from the Online PLC.            
                                                                               
  
                SYSTEM INFORMATION MENU  Page 4 of 7     
   System Information displayed (Cont'd):                                      
                                                                               
      System ID - Firmware version number of Online PLC. When Offline,         
         entering a 2 enables you to program special functions for the         
         model EX25-1A and EX50-1A PLCs.                                       
                                                                               
      PDD Version - EX-PDD version number.                                     
                                                                               
      Scan Time(msec) - The amount of time required by the Online PLC to       
         process the entire program once (including any overhead time such     
         as I/O processing, diagnostics, etc.).  The number displayed is       
         rounded to the nearest whole millisecond.                             
                                                                               
      Error Status - If an error occurs in the PLC, the short description      
         of the cause is displayed here.                                       
                                                                               
      Diagnostics - User defined diagnostic numbers and messages generated by  
         the DDS and DDSM instructions in the PLC program are displayed here.  
         Up to 4 numbers/messages can be displayed simultaneously.             
  
                SYSTEM INFORMATION MENU  Page 5 of 7     
                                                                               
   Control Commands - These commands allow control of the PLC operation        
      through the computer keyboard and are only available while Online        
      with a PLC.  The control commands are described below:                   
                                                                               
      Write EEPROM - This command is available for the EX100, EX200B, and the  
         enhanced EX250 (model EX25-1A) and EX500 (model EX50-1A). The         
         contents of RAM is transfered to EEPROM. The PLC must be in HALT.     
                                                                               
      RUN - The Run command puts the PLC into the run mode.  The halt/run      
         switch on the PLC must be in the run position for this command        
         to work.                                                              
                                                                               
      RUN-F - The Run Forced command puts the PLC into the run forced mode.    
         The halt/run switch on the PLC must be in the run position for this   
         command to work.                                                      
                                                                               
      HALT - The Halt command puts the PLC into the halt mode.                 
                                                                               
  
  
                SYSTEM INFORMATION MENU  Page 6 of 7     
                                                                               
   Reset Commands - These commands allow resetting and testing of several      
      parameters in the PLC.  These commands are available for an Online       
      PLC only.                                                                
                                                                               
      Pgm. Check - The program in PLC memory is tested for correct format,     
         valid instruction op-codes, and memory content.  Any errors are       
         displayed in the Error Table.                                         
                                                                               
      Memory Clear - The PLC RAM is cleared (the program and all data is       
         erased).  This command will not work if an EPROM module is            
         installed in an EX250/500 or if the ROM/RAM switch is in the ROM      
         position on the EX200B.                                               
                                                                               
      Err/T Clear - The Error Status table (which is displayed in              
         item 9 of the System Information menu) is cleared.  The Error Reset   
         command must be sent before this command will work.                   
                                                                               
                                                                               
  
  
                SYSTEM INFORMATION MENU  Page 7 of 7     
                                                                               
   Reset Commands (Cont'd)                                                     
                                                                               
      Error Reset - All error conditions in the PLC are cleared.               
                                                                               
      Force Clear - All forced devices in the PLC are reset to the             
         normal non-forced condition.                                          
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
    -             END OF SYSTEM INFORMATION MENU     
  
  

                  I/O ALLOCATION TABLE Page 1 of 2     
                                                                               
   The I/O register allocation for each I/O module mounted in the PLC is       
   displayed in this table.  The table layout depends on the PLC type (EX100,  
   EX250, EX500, or EX200B) specified in the System Information Table.         
                                                                               
   The table can be edited by moving the cursor to the desired unit/slot       
   number and pressing the appropriate softkey to select the type and quantity 
   of I/O registers required by each module.                                   
                                                                               
   The table can be automatically defined if the PLC is ONLINE and the I/O     
   modules are installed.  Pressing the Auto Setup key [F8] initiates this     
   feature. (The PLC must be in the halt mode.)                                
                                                                               
   The I/O allocation information is saved to disk when OFFLINE, or to the     
   PLC (in the halt mode) when ONLINE by pressing the [F10] key.               
                                                                               
                                                                               
                                                                               
                                                                               
                  I/O ALLOCATION TABLE Page 2 of 2     
                                                                               
   More on I/O Allocation Table Editing.                                       
                                                                               
   The cursor control keys are used to move the cursor to the                  
   desired slot number.  The function softkeys are labled with the register    
   type that can be used.  Pressing the space bar will assign the quantity     
   of registers to the I/O slot.  The following table shows the quantity of    
   registers that can be assigned to each slot according to register type:     
                                                                               
                                        -                              
                    Reg type   # of Regs possible                              
                          -                                             
                   X,iX,Y,iY    1, 2, 4, or 8                                  
                    X  Y,iX  Y    2, 4, or 8                                     
                       Z        8, 16, or 32                                   
                      SP        1,2,4,8,16, or 32                              
                      OPT       I/O Regs not used                              
                                        -                              
                                                                               
    -               END OF I/O ALLOCATION TABLE     
  
  
                LOAD/SAVE/COMPARE MENU  Page 1 of 1     
                                                                               
    The Load/Save/Compare menu allows selection of the following functions:    
                                                                               
             *  Load a program from a disk file to PLC memory (F1).            
             *  Save a program from PLC memory to a disk file (F2).            
             *  Compare a program in PLC memory to a disk file (F3).           
             *  Compare a disk file to another disk file (F4).                 
                                                                               
       For a more detailed description of these functions, use the following   
          HELP function keys:                                                  
                                                                               
                                                                               
                                                                               
                                                                               
    -            - END OF LOAD/SAVE/COMPARE MENU     
  
                       - LOAD MENU  Page 1 of 1     
                                                                               
   You can load a program to any one of 16 different PLC units by selecting a  
      Station Number (S or 0-F).  Default number is the PLC unit currently     
      ONLINE.                                                                  
                                                                               
   The Filename on disk, which you specify with 1 to 8 characters, is loaded   
      to the PLC.  Default filename is the currently named program.            
                                                                               
   You can Select ([F7]) or De-select ([F8]) specific PLC information          
      to be loaded from disk by positioning the cursor over:                   
                                                                               
      Ladder Logic:  Load the ladder program to the PLC.                       
      TOP of Keep Area:  Load the Keep Area status to the PLC.                 
      I/O Allocation Tables:  Load the I/O Allocation Table information.       
      Force Inputs:  Load the force status of all X and Z input devices.       
      Register Values:  Load all of the register values to the PLC.            
                                                                               
                                                                               
                                                                               
    -                       END OF LOAD MENU     
  
  
                       - SAVE MENU  Page 1 of 1     
                                                                               
   You can save a program from any one of 16 different PLC units by selecting  
      a Station Number (S or 0-F).  Default number is the PLC unit currently   
      ONLINE.                                                                  
                                                                               
   The PLC program is saved to the Filename on disk, which you specify with    
      1 to 8 characters.  Default filename is the currently named program.     
                                                                               
   You can Select ([F7]) or De-select ([F8]) specific PLC information          
      to be saved by positioning the cursor over:                              
                                                                               
      Ladder Logic:  Save the PLC ladder program to disk.                      
      TOP of Keep Area:  Save the PLC Keep Area status to disk.                
      I/O Allocation Tables:  Save the I/O Allocation Table information.       
      Force Inputs:  Save the force status of all X and Z input devices.       
      Register Values:  Save all PLC register values to disk.                  
                                                                               
                                                                               
                                                                               
    -                       END OF SAVE MENU     
  
  
                    COMPARE PLC MENU  Page 1 of 1     
                                                                               
   You can Compare a program on disk to any one of 16 different PLC units by   
      selecting a PLC Station Number (S or 0-F).  Default is the PLC ONLINE.   
                                                                               
   The Filename on disk, which you specify with 1 to 8 characters, is          
      compared to the PLC.  Default filename is the currently named program.   
                                                                               
   You can Select ([F7]) or De-select ([F8]) specific PLC information          
      to be compared to the disk program by positioning the cursor over:       
                                                                               
      Ladder Logic:  Compare the ladder program to the PLC.                    
      TOP of Keep Area:  Compare the Keep Area status to the PLC.              
      I/O Allocation Tables:  Compare the I/O Allocation Table information.    
      Force Inputs:  Compare the force status of all X and Z input devices.    
      Register Values:  Compare all of the register values to the PLC.         
                                                                               
   You can specify the compare results to be directed to a printer port (such  
      as LPT1) or to a filename on disk (such as COMPARE.PRN    or whatever). 
                                                                               
    -                - END OF COMPARE PLC MENU     
  
                    COMPARE DISK MENU  Page 1 of 1     
                                                                               
   A Filename on disk, which you specify with 1 to 8 characters, is            
      compared to another Filename on disk. The defaults for both filenames    
      are the currently named program.  To change the filenames, simply        
      move the cursor to the Filename fields and enter the new filenames.      
                                                                               
   You can Select ([F7]) or De-select ([F8]) specific information to be        
      compared in the two disk programs by positioning the cursor over:        
                                                                               
      Ladder Logic:  Compare the ladder logic in both programs.                
      TOP of Keep Area:  Compare the Keep Area status in both programs.        
      I/O Allocation Tables:  Compare the I/O Allocation Table information.    
      Force Inputs:  Compare the force status of all X and Z input devices.    
      Register Values:  Compare all of the register values in both programs.   
                                                                               
   You can specify the compare results to be directed to a printer port (such  
      as LPT1) or to a filename on disk (such as COMPARE.PRN    or whatever). 
                                                                               
                                                                               
    -                 END OF COMPARE DISK MENU     
  
  
                  LADDER LOGIC DISPLAY Page 1 of 4     
                                                                               
   Ladder logic programs are divided into pages which are numbered from        
   001 to 999.  Each page can contain up to 14 lines.  The screen will         
   display 7 lines (   page) of ladder logic at a time.   When the ladder       
   logic display mode is entered from the Top Menu (by pressing [F2]) the      
   source of the program to be displayed depends on if the PLC is Online       
   or Offline.                                                                 
                                                                               
      When Offline, page 001 of the named program on disk (selected by [F7]    
            in the Top Menu) is displayed on the screen.  If the filename      
            cannot be found on the disk, then it is created and a blank        
            page 001 is displayed.                                            
                                                                             
     When Online, page 001 of the program in PLC memory is displayed.        
                                                                             
  Pressing [F7] (Valid Ladder) in the Ladder Logic softkey menu initiates    
  a test for correct ladder logic grammar, instruction grammar, and reference
  number ranges.  Valid Ladder should be done after editing the ladder logic.
                                                                             
    -                                  
  
  
                  LADDER LOGIC DISPLAY Page 2 of 4     
                                                                             
  Pressing [Shift] [F7](Valid Ladder) while viewing ladder logic OFFLINE,    
           will validate every page of ladder logic sequentially, starting   
           with page one, and ending with the last page.  This validation    
           will check for correct ladder logic grammer, instruction          
           grammer, number ranges, and logic combination usages.  As a       
           habit, this should always be executed before attempting to        
           load a program to the PLC.                                        
                                                                             
           When the entire program validation check has been completed,      
           EX-PDD will calculate the number of steps and pages used, and     
           then display the number of steps used as a message on the screen. 
           The system information page will also be updated.                 
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                      -                
  
                  LADDER LOGIC DISPLAY Page 3 of 4     
                                                                             
                                                                  
  The page number is displayed   > 001 PB1   Start                        
  at the top left corner of the      01  -     -^                     
  screen.                             1 X001  R001                        
                                       Start2                             
  The line number is displayed   >  02  -                                    
  next to the line of logic.          1 X002                               
                                        PB3   LS3                          
  The circuit number is              03  -     -/                       
  displayed below the line       >   2 X005   X021                        
  number.                                                                   
                                                                             
                                                                             
  Other pages in the program can be displayed by pressing the Display Page   
  softkey ([F1]), entering the desired page number, and then pressing        
  [Enter].                                                                   
                                                                             
                                                                             
    -                                  
  
  
                  LADDER LOGIC DISPLAY Page 4 of 4     
                                                                             
  To move "between" pages of ladder logic, these keys can be used:           
                                                                             
     [Home] - Display the first page of the program (Page 001).              
     [End]  - Display the last page of the program.                          
     [PgUp] - Display the page preceding the page currently displayed.       
     [PgDn] - Display the page following the page currently displayed.       
     [F1] - enter page number (000 - 999) - then press [Enter] key.          
                                                                             
  To move "within" pages of ladder logic, these keys can be used:            
                                                                             
     [Ctrl] [Home] - Display lines 1 - 7 of the page.                        
     [Ctrl] [End]  - Display lines 8 - 14 of the page.                       
     [Ctrl] [PgUp] - Move up the page by one line.                           
     [Ctrl] [PgDn] - Move down the page by one line.                         
                                                                              
   Pressing [F2] (New Page) will insert a new blank page following the page    
   currently displayed.  Edit Page mode is automatically entered.              
                                                                               
    -               END OF LADDER LOGIC DISPLAY     
  
  
                  GLOBAL PAGE MOVE/COPY Page 1 of 2     
                                                                               
   Pressing [F3] (Global Page) selects the Move/Copy ladder logic menu. The    
   pages to be moved/copied are taken from the filename displayed in the menu  
   (default filename = the program currently displayed on the screen). Another 
   filename can be entered if the pages are to be COPIED (not moved) from      
   another disk file. This makes it possible to select pages from a library of 
   other programs on disk and insert them into the program you are working on. 
   All moved/copied pages are inserted AFTER the page displayed on the screen. 
                                                                               
   Pressing [F1] initiates the Move page function.                             
   Pressing [F2] initiates the Copy page function.                             
   Pressing [Esc] cancels the Move/Copy function.                              
                                                                               
   CAUTION: The Move/Copy Page function will work on pages of ladder logic     
            ONLY.  Move/Copy Page does NOT delete any Page, Circuit, or Line   
            commentary that may have been previously entered for the ladder    
            logic.  This caution does not apply to Device comments.  Device    
            comments are moved/copied along with the ladder logic.             
                                                                               
    -                                  
  
  
                  GLOBAL PAGE MOVE/COPY Page 2 of 2     
                                                                               
   In this example, pages 002 - 003 are specified to be moved/copied,          
   while page 004 is displayed on the screen.  The following diagrams show     
   the page sequence after a Move function or a Copy function is used.         
   Note that the pages are re-numbered after a move/copy                        
   function.                                                   001   A         
                                                                               
                                                               002   B         
                                                                                 
   Before  001   A        Result if  001   A        Result if  003   C         
   MOVE/                  MOVE                      COPY                       
    COPY   002   B        function   002   D        function   004   D         
                          is used.                  is used.                   
           003   C                   003   B                   005   B         
                                                                               
           004   D                   004   C                   006   C         
                                                                               
           005   E                   005   E                   007   E         
                                                                                  
    -               END OF GLOBAL PAGE MOVE/COPY     
  
  
                                                                               
   Pressing [F4] in the Ladder Logic softkey menu allows you to enter          
   the Edit Page mode.  An element cursor is displayed in the upper left       
   corner of the screen.  The following keys are used to move the cursor to    
   the desired direction:                                                      
                                                                               
                               [up arrow]                                      
                                    |                                          
                           [Home]   |   [PgUp]                                 
                                 \  |  /                                       
                                  \ | /                                        
                 [left arrow] <    |    > [right arrow]                      
                                  / | \                                        
                                 /  |  \                                       
                            [End]   |   [PgDn]                                 
                                    |                                          
                              [down arrow]                                     
                                                                               
                                                                               
    -                                  
  
  
                       - EDIT PAGE  Page 2 of 8     
                                                                               
   To move within the 14-line page of ladder logic, these keys can be used:    
      [Ctrl] [Home] - Display lines 1 - 7 of the page.                         
      [Ctrl] [End]  - Display lines 8 - 14 of the page.                        
      [Ctrl] [PgUp] - Move up the page by one line.                            
      [Ctrl] [PgDn] - Move down the page by one line.                          
                                                                               
   The [F1] through [F6] keys select sub-menus containing the complete         
      instruction set for the EX250, EX500, and EX200B.                        
   The [F7] and [F8] keys select powerful editing commands which allow you     
      to manipulate existing ladder logic.                                     
   [F9] is a toggle which allows you to switch between programming with        
      PLC device reference numbers (such as X001) or synonyms (such as PB1).   
   [Shift][F9] will open a window and allow you to edit the ref/syn table.     
      This window is equivalent to the device commentary menu under comment    
      ladder. Escape out of this menu by pressing [F10].                       
   [Shift][F10] is used to save the page of ladder logic to disk when you      
      are Offline, or to the PLC when you are Online.                          
                                                                               
    -                                  
  
  
                       - EDIT PAGE  Page 3 of 8     
                                                                               
   To enter a ladder logic instruction:                                        
                                                                               
       1.  Move the element cursor to the location on the screen where the     
               the instruction is to be entered.                               
       2.  Select the sub-menu where the instruction is located by pressing    
               one of the first 6 function keys ([F1] - [F6]).                 
       3.  Find the instruction in the sub-menu display and press the          
               appropriate function key.  (Note that some of the instructions  
               must be entered by holding down the [Shift] key while pressing  
               the function key.)                                              
       4.  The instruction will be displayed on the screen at the cursor       
               location.  You can now enter the reference number(s) or         
               synonym(s) from the keyboard, and then press [Enter].           
       5.  You may return to the Ladder Logic softkey menu by pressing [F10].  
                                                                               
   NOTE: By holding down the [Alt] key and pressing the desired function       
         key, you can go directly from one instruction sub-menu to another     
         sub-menu without having to return to the Ladder Logic softkey menu.   
                                                                               
    -                                  
  
  
                       - EDIT PAGE  Page 4 of 8     
                                                                               
   [F1] - Sequence Instructions:           [F2] - Extra Sequence Instructions: 
                                                                               
    -] [-  NO Contact                          MCS   Master control set        
    -]/[-  NC Contact                          MCR   Master control reset      
    -]^[-  Leading edge transitional contact                                   
    -]v[-  Trailing edge transitional contact  JCS   Jump control set          
    OPEN   No vertical connection              JCR   Jump control reset        
    CLOSE  Vertical connection                                                 
          Horizontal connection               STIZ  Step sequence initialize  
    -x x-  No horizontal connection            STIN  Step sequence input       
    -( )-  Coil                                STOT  Step sequence output      
  -*-( )-  Forced coil                                                         
    TON    On-delay timer                      SET   Set bit                   
    TOF    Off-delay timer                     RST   Reset bit                 
    SS     Single-shot timer                   SR    Shift register            
    CNT    Counter                             F/F   Flip-flop                 
    END    End of program                      U/D   Up/down counter           
                                                                               
    -                                  
  
  

                       - EDIT PAGE  Page 5 of 8     
                                                                               
  [F3] - Move and Compare Instructions:  [F4] - Arithmetic Instructions:       
                                                                               
  W -> W register to register move       R    R add register to register        
  K -> W constant to register move       R    K add register to constant        
  TINZ   table initialize                R - R subtract register from register 
  T -> W table to register move          R - K subtract constant from register 
  W -> T register to table move          R x R multiply register by register   
  T -> T table to table move             R x K multiply register by constant   
  DDSP   diagnostic display              R / R divide register by register     
  DDSM   diagnostic display w/ message   R / K divide register by constant     
  R > R  compare register > register    R      R double length register add      
  R > K  compare register > constant    R    R double length register subtract 
  R = R  compare register = register     RT    square root                     
  R = K  compare register = constant     SIN   sine                            
  R < R  compare register < register     ASIN  arc-sine                        
  R < K  compare register < constant     COS   cosine                          
                                         ACOS  arc-cosine                      
                                                                               
    -                                  
  
  
                       - EDIT PAGE  Page 6 of 8     
                                                                               
  [F5] - Logical Operation Instructions:  [F6] - Convert & Limit Instructions: 
                                                                               
  R AND R  register AND register           BIN   BCD to binary conversion      
  R AND K  register AND constant           BITC  bit count of bits = 1         
  R OR R   register OR register            BCD1  binary to BCD conversion      
  R OR K   register OR constant            BCD2  binary to double length BCD   
  R EOR R  register Exclusive OR register  ENC  encode position of bit = 1     
  R EOR K  register Exclusive OR constant  DEC  decode position and set bit=1  
                                           UL   set upper limit value          
    NOT    invert register bits            LL   set lower limit value          
    NEG    2's complement of register      MAX  find maximum value in table    
                                           MIN  fint minimum value in table    
    RTR    rotate register bits right      AVE  find average value in table    
    RTL    rotate register bits left       FG   function generator             
                                           IN   read the input values now      
    TEST   register bit test for 1         OUT  write the output values now    
                                           READ   block read from OPT module   
                                           WRITE   block write to OPT module   
    -                                  
  
                       - EDIT PAGE  Page 7 of 8     
                                                                               
   Pressing [F7] in the Ladder Logic softkey menu will re-define the softkeys  
   for insert and delete operations.  The new softkey definitions are:         
                                                                               
   [F1] - Clear Element - erases the instruction at the location of the        
       element cursor.                                                         
   [F2] - Delete Line - deletes the entire line in which the element cursor    
       is located.  Lines below the deleted line are moved up to fill the gap. 
   [F3] - Delete Column - deletes a column of instructions at and below the    
       element cursor in a circuit (not the entire page). Columns to the       
       right are pulled over to fill the gap.                                  
   [F4] - Insert Line - inserts a new blank line at the location of the        
       element cursor. Lines at and below the cursor are pushed down the page. 
   [F5] - Insert Column - inserts a new blank column at and below the element  
       cursor in a circuit. Columns to the right are pushed over to make room. 
   [F6],[F7] - allows you to enter/erase vertical and horizontal shorts.       
   [F8] - Recover - cancels the effect of the most recent command used in      
       the insert/delete submenu by restoring the ladder to its prior state.   
                                                                               
    -                                  
  
  
                       - EDIT PAGE  Page 8 of 8     
                                                                               
   Pressing [F8] in the Ladder Logic softkey menu will re-define the softkeys  
   for move and copy line operations.  The new softkey definitions are:        
                                                                               
   [F2] - Copy Lines - allows you to copy existing lines of logic which are    
       already programmed into another location in the ladder program.         
       You can specify the page number and range of lines on the page          
       from which the lines are copied.  The lines are inserted into the       
       location of the element cursor on the displayed page.  Any previous     
       lines at or below the element cursor location are moved down the page   
       to make room for the copied lines.                                      
                                                                               
   [F1] - Move Lines - functions the same way as Copy Lines, except that       
       the specified page MUST be the displayed page.  Also, the specified     
       range of lines are deleted from their old location and any following    
       lines on the displayed page are moved up to fill the gap.               
                                                                               
                                                                               
                                                                               
    -                       END OF EDIT PAGE     
  
  

                        DELETE PAGE  Page 1 of 1     
                                                                               
   Pressing [F5] (Delete Page) in the Ladder Logic softkey menu allows         
       you to remove a page, or range of pages from the ladder logic program.  
       Subsequent pages beyond the deletion are renumbered to eliminate gap.   
                                                                               
   To remove page(s) of ladder logic, enter the numbers of the page(s) to be   
       deleted and press [Enter] to delete or [Esc] to cancel.                 
                                                                               
                                                                               
                                                                               
   CAUTION: The Delete Page function will delete pages of ladder logic ONLY.   
            Delete Page does NOT delete any Page, Circuit, or Line commentary  
            that may have been previously entered for the ladder logic.        
            This caution does not apply to Device comments.  Device comments   
            are deleted along with the ladder logic.                           
                                                                               
                                                                               
                                                                               
                                                                               
    -                     END OF DELETE PAGE     
  
  

                      SEARCH LADDER  Page 1 of 2     
                                                                               
    The SEARCH Function ([F6] in the ladder logic menu) is used to             
    locate and display a device of a particular reference number in the        
    program both ONLINE and OFFLINE.  To begin search, enter an address,       
    either a full device number address or a partial address.(i.e. X018        
    for an exact match, or X01 to find all devices from X010 to X01F)          
    The page range defaults to the present page to the end page.  To change    
    this page range, place cursor over number, by using [tab] or [arrow keys], 
    and edit.  To begin search press: [F3] Search First.                       
                                                                               
    NOTE:  Both upper and lower case letters can be entered, even though       
    forced devices are represented by lower case letters.  PDD checks the      
    force table and determines the state of the device before it implements    
    the search.                                                                
                                                                               
    The following page explains the operation of each search softkey.          
                                                                               
                                                                               
                                                                               
  
  
                      SEARCH LADDER  Page 2 of 2     
                                                                               
   The following are Search functions under [F6] in the Ladder Logic menu:     
                                                                               
   [F1] Ref Only/Ref & Syn. - Toggles between choices of searching for         
       reference numbers or ref. number and synonyms.  When Ref & Syn is       
       shown, synonyms may be typed in and searched.  Remember, synonyms       
       can be up to 6 characters and are always capital letters.               
   [F2] Forward/Backup - Selects search direction to be forward from the       
       beginning of the specified page range, or backward from the end of      
       the specified page range in the program.                                
   [F3] Search First - Finds first occurrence of the searched device for       
       a forward or backup search.                                             
   [F4] Search Next - Finds the next occurrence of the searched device for     
       a forward or backup search.                                             
   [F5] Any Instruction/Coil Only - Toggles between coil only or any inst.     
      Use Coil Only to find device numbers that correspond to only coils,      
      and Any Inst. to find all occurances of the device number.               
   [F6] Edit Page - Allows you to enter Edit Page Mode from the search menu    
       so a searched device can be edited and saved.                           
                                                                               
    -                  - END OF SEARCH LADDER     
  
  

                      COMMENT LADDER  Page 1 of 3     
                                                                               
   There are several levels of ladder logic commentary available.              
                                                                               
     Page Comments - describe a full 14-line page of ladder logic.             
                     (10 lines by 76 characters)                               
     Circuit Comments-describe a circuit of one or more ladder logic lines.    
                      (5 lines by 76 characters)                               
     Line Comments - describe a single line of ladder logic.                   
                     (3 lines by 50 characters)                                
     Device Comments - describe a device such as a contact, coil, or register. 
                       (3 lines by 6 characters)                               
   NOTE: It is recommended that PAGE, CIRCUIT, and LINE comments be            
         entered into your program AFTER you have completed developing         
         your program logic. This is because PAGE, CIRCUIT and LINE comments   
         are assigned to page numbers, and inserting or deleting ladder        
         logic will cause the existing comments to be off.  However, the       
         comments can be re-located by the MOVE, COPY, INSERT, or DELETE       
         functions under [F9](move comment).                                   
                                                                               
    -                                  
  
  
                      COMMENT LADDER  Page 2 of 3     
                                                                               
   Pressing [F1](Display Page) allows you to select a page of ladder logic     
       to display.                                                             
                                                                               
   Pressing [F2](Remove/Display Synonym) allows you to Display or Remove       
       the synonym portion of the device commentary on the screen display.     
                                                                               
   Pressing [F3] allows you to Display or Remove the description portion of    
               the device commentary on the screen display.                    
                                                                               
   Pressing [F5] allows you to enter page comments                             
                                                                               
   Pressing [F6] allows you to enter circuit comments.                         
                                                                               
   Pressing [F7] allows you to enter line comments.                            
                                                                               
   Pressing [F8] allows you to enter device comments.                          
                                                                               
   Pressing [F9] allows you to change locations(move/copy) page comments       
                                                                               
    -                         .        
  
  
                      COMMENT LADDER  Page 3 of 3     
                                                                               
   The following are available under [F9](Move Comment):                       
                                                                               
   [F1](Insert Page)-This inserts blank page(s) beginning at the page          
       range specified                                                         
                                                                               
   [F2](Delete Page)-This deletes page(s) of commentary beginning at the       
       page range specified                                                    
                                                                               
   [F3](Move Page)- This allows comments to be moved from the current          
       ladder program or from another ladder program stored on disk            
                                                                               
   [F4](Copy Page)- Same as above but comments will be copied .                
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
    -                   END OF COMMENT LADDER      
  
                     - PAGE COMMENT  Page 1 of 1     
                                                                               
   Pressing [F5] from the Comment Ladder softkey menu allows you to            
   display/edit the Page commentary for the ladder logic page currently        
   displayed on the screen.  A page comment consists of a block of text up     
   to 10 lines high by 76 characters wide.                                     
   A text cursor marks where text will be displayed when                       
   you enter it from the keyboard.  Up to 3 lines of text are visible on the   
   screen at a time.  To see any other hidden text you may use the cursor      
   up and down keys to scroll the commentary.  Other useful keys are:          
                                                                               
       [Home]  - move the cursor to line 1 of the text block.                  
       [End]   - move the cursor to line 10 of the text block.                 
       [PgUp]  - move up the text block 3 lines at a time.                     
       [PgDn]  - move down the block of text 3 lines at a time.                
       [Enter] - move the text cursor to the first column in the next line.    
       [F1]    - save the page commentary to disk.                             
   [Esc] or [F10] - cancel any commentary changes.                             
                                                                               
                                                                               
    -                     END OF PAGE COMMENT     
  
  
                   - CIRCUIT COMMENT  Page 1 of 1     
                                                                               
   Pressing [F6] from the Comment Ladder softkey menu allows you to            
   display/edit the Circuit commentary for the ladder logic page currently     
   displayed on the screen.  A circuit comment consists of a block of text up  
   to 5 lines high by 76 characters wide. After pressing [F6] you will be      
   asked to enter the circuit number you wish to display on the screen.        
   Circuit numbers are entered in decimal. (I.e., enter 10 for circuit A, 11   
   for circuit B, etc.)  A text cursor marks where text will be displayed when 
   you enter it from the keyboard.  Up to 3 lines of text are visible on the   
   screen at a time.  To see any other hidden text you may use the cursor      
   up and down keys to scroll the commentary.  Other useful keys are:          
                                                                               
       [Home]  - move the cursor to line 1 of the text block.                  
       [End]   - move the cursor to line 5 of the text block.                  
       [PgUp]  - display the first 3 lines of text.                            
       [PgDn]  - display the last 3 lines of text.                             
       [Enter] - move the text cursor to the first column in the next line.    
       [F1]    - save the circuit commentary to disk.                          
   [Esc] or [F10] - cancel any commentary changes.                             
    -                   END OF CIRCUIT COMMENT     
  
  
                     - LINE COMMENT  Page 1 of 1     
                                                                               
   Pressing [F7] from the Comment Ladder softkey menu allows you to            
   display/edit the Line commentary for the ladder logic page currently        
   displayed on the screen.  Line commentary consists of a block of text       
   up to 42 lines high by 50 characters wide.  Out of the 42 text lines in     
   the block, 3 text lines are dedicated to each of the 14 ladder logic lines  
   on the page.  A text cursor marks where text will be displayed when         
   you enter it from the keyboard.  Up to 3 lines of text are visible on the   
   screen at a time.  To see any other hidden text you may use the cursor      
   up and down keys to scroll the commentary.  Other useful keys are:          
                                                                               
       [Home]  - move the cursor to comment 1, text line 1 of the text block.  
       [End]   - move the cursor to comment 14, text line 3 of the text block. 
       [PgUp]  - move up the text block 3 lines at a time.                     
       [PgDn]  - move down the block of text 3 lines at a time.                
       [Enter] - move the text cursor to the first column in the next line.    
       [F1]    - save the line commentary to disk.                             
   [Esc] or [F10] - cancel any commentary changes.                             
                                                                               
    -                     END OF LINE COMMENT     
  
  
                      DEVICE COMMENT  Page 1 of 4     
                                                                               
   Pressing [F8] from the Comment Ladder softkey menu allows you to            
   display/edit the Device commentary for the entire ladder logic program.     
   Device commentary text consists of a 1 line by 6 character synonym and a    
   3 line by 6 character description.  A screen display color can also be      
   assigned. A text cursor marks where text will be displayed when             
   you enter it from the keyboard.  The synonym is always required when        
   assigning device comments.  The description and color are optional.         
   Either the device reference number or the synonym can be entered first by   
   toggling the REF and SYN display with the [F9] key.                         
                                                                               
   Reference numbers and synonyms are entered by OVERWRITING the new ref/syn   
   text on top of any previous text at the cursor location.  Then, when        
   tabbing over to the next column with the [Tab] key, a space is opened       
   for the rest of the new ref/syn and description text to be entered.         
                                                                               
   A ref/syn assignment can be DELETED by blanking out the synonym, when in    
   the reference display mode, with the [Space] bar key and pressing [Enter].  
   To exit the device commentary menu display, press [F10].                    
                                                                               
    -                                  
  
  
                      DEVICE COMMENT  Page 3 of 4     
                                                                               
   These are the color codes for CONTINUOUS color display of device comments.  
                                                                               
                                                                               
                            - Foreground Colors                     
  Background                              DRK LT  LT  LT  LT  LT  LT           
   Colors     BLK BLU GRN CYN RED MAG BRN GRY GRY BLU GRN CYN RED MAG YEL WHT  
                                                                                
  BLACK           001 002 003 004 005 006 007 008 009 010 011 012 013 014 015  
  BLUE        016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031  
  GREEN       032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047  
  CYAN        048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063  
  RED         064 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079  
  MAGENTA     080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095  
  BROWN       096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111  
  LT GREY     112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127  
                                                                               
                                                                               
                                                                               
    -                                  
  
                      DEVICE COMMENT  Page 4 of 4     
                                                                               
   These are the color codes for BLINKING color display of device comments.    
                                                                               
                                                                               
                            - Foreground Colors                     
  Background                              DRK LT  LT  LT  LT  LT  LT           
   Colors     BLK BLU GRN CYN RED MAG BRN GRY GRY BLU GRN CYN RED MAG YEL WHT  
                                                                              
  DARK GREY   128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143  
  LT BLUE     144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159  
  LT GREEN    160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175  
  LT CYAN     176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191  
  LT RED      192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207  
  LT MAGENTA  208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223  
  YELLOW      224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239  
  WHITE       240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255  
                                                                               
                                                                               
                                                                               
    -                   END OF DEVICE COMMENTS -  
  
                      DEVICE COMMENT  Page 2 of 4     
                                                                               
   Repacking the Device Commentary Index Table:                                
                                                                               
   Device reference numbers, synonyms, and comments are saved in two index     
   tables on the disk.  This is done by using a binary tree algorithem.  Thus, 
   as the table grows larger, the retrieval time of syn/ref data will take     
   longer.  Therefore it is necessary to repack the indexes.  A test[F2]       
   is provided to see if the indexes need repacking.  Remember, there are      
   two index tables, Syn. and  Ref.  The Ref table is tested and repacked      
   by pressing [F2] or [F1], respectfully, when the word REF in the ref.       
   column is in high-intensity (bold).  Likewise, the SYN table is tested      
   and repacked the same way(when SYN in the syn. column is in bold print.)    
                                                                               
   Remember, if one index needs to be repacked (test fails and repacking is    
   indicated), then the other index probably needs repacking also.  To do      
   this only takes a few moments to complete.                                  
                                                                               
   NOTE:                                                                       
   The SYN and REF intensity is changed by pressing [F9] toggle REF/SYN        
                                                                               
    -                                  
  
                      MONITOR/FORCE  Page 1 of 2     
                                                                               
   Pressing [F9] from the Ladder Logic softkey menu selects the Monitor and    
   Force functions.  This is only available while Online with a running PLC.   
                                                                               
   The Monitor function allows the current status of all devices on the screen 
   to be observed while the PLC program is running.  The status of each        
   device is shown on the screen as follows:                                   
                                                                               
       Contacts - Displayed in a high intensity color when true, and in the    
               normal (low intensity grey) mode when false.                    
       Coils - Displayed in a high intensity color when energized, and in the  
               normal (low intensity grey) mode when non-energized.            
       Connecting Lines - Displayed in high intensity color when power-flow    
               can be traced through the ladder logic circuit between the      
               left and right power rails.                                     
       Registers - Values are continuously updated and displayed below the     
               register reference number.                                      
                                                                               
                                                                               
    -                                  
  
  
                      MONITOR/FORCE  Page 2 of 2     
                                                                               
   The Force function allows contacts and coils to be turned on or off from    
   the computer keyboard, rather than from the I/O status in the PLC program.  
                                                                               
   To Force or Release a device, press [F3](FORCE/RELEASE) and enter the       
     device number. Use [F7] to turn On, or [F8] to turn Off a forced device.  
                                                                               
   [F1] T/C Preset - This allows the preset value of the counter or timer      
     to be changed while monitoring the PLC in the run mode.                   
                                                                               
   [F2] DEC/HEX/ASCII - Display reg values in Decimal, Hexadecimal, or ASCII.  
                                                                               
   [F5] Set Value - allows register values (i.e. D  - or RW  )                
     to be changed while monitoring the PLC in the run mode.                   
                                                                               
   [F6] toggles between Data Hold and Data Active.  Data Hold will             
   freeze the screen display, holding the latest device status.  Data          
   Active allows the screen to be updated continuously with device status.     
                                                                               
    -                  - END OF MONITOR/FORCE     
  
  

                      BLOCK MONITOR  Page 1 of 3     
                                                                               
   Pressing [F3] from the Top Menu selects the Block Monitor.  The block       
   monitor allows you to display the values of up to 32 consecutive registers  
   on the screen.  To select a group of registers for display, press [F1]      
   (Start Number) and enter the desired starting register type and number.     
   The following keys will also aid in selecting registers for display.        
                                                                               
       [Home] - Display the first 32 registers of the register type currently  
                selected.                                                      
       [PgUp] - Rotate the previous 16 registers into the 32 register display  
                of the type currently selected.                                
       [PgDn] - Rotate the next 16 registers into the 32 register display      
                of the type currently selected.                                
       [End]  - Display the last 32 registers of the register type currently   
                selected.                                                      
                                                                               
   Pressing [F6] toggles between Data Hold and Data Active.  Data Hold will    
   freeze the screen display, holding the register status.  Data Active        
   allows the screen to be updated continuously with register status.          
    -                                  
  
                      BLOCK MONITOR  Page 2 of 3     
                                                                               
   The [F2] key works as a display mode selector.  This softkey label          
   indicates the currently selected display mode.  The 3 modes are:            
                                                                               
       DEC   - Display register values in decimal from 00000 to 65535.         
                                                                               
       HEX   - Display register values in hexadecimal from H0000 to HFFFF.     
                                                                               
       ASCII - Display 2 characters to represent the high byte and low byte    
               of the stored value.  If a byte has no "printable" characters,  
               then display a blank.                                           
                                                                               
    Pressing [F5] allows you to set register values.  Values are entered       
    in decimal unless prefixed by an H or O.  Press [Esc] to cancel the        
    set value function.                                                        
                                                                               
       An H0200 is a Hex value equal to 512 in decimal.                        
       An O0017 is an Octal value equal to 15 in decimal.                      
                                                                               
    -                                  
  
  
                      BLOCK MONITOR  Page 3 of 3     
       This is a partial list of the ASCII character codes (used in IBM PC).   
  Hex          Hex          Hex          Hex          Hex          Hex         
  Code  Char.  Code  Char.  Code  Char.  Code  Char.  Code  Char.  Code  Char. 
   20 (space)   30    0      40    @      50    P      60    `      70    p    
   21   !       31    1      41    A      51    Q      61    a      71    q    
   22   "       32    2      42    B      52    R      62    b      72    r    
   23   #       33    3      43    C      53    S      63    c      73    s    
   24   $       34    4      44    D      54    T      64    d      74    t    
   25   %       35    5      45    E      55    U      65    e      75    u    
   26   &       36    6      46    F      56    V      66    f      76    v    
   27   '       37    7      47    G      57    W      67    g      77    w    
   28   (       38    8      48    H      58    X      68    h      78    x    
   29   )       39    9      49    I      59    Y      69    i      79    y    
   2A   *       3A    :      4A    J      5A    Z      6A    j      7A    z    
   2B            3B    ;      4B    K      5B    [      6B    k      7B    {    
   2C   ,       3C    <      4C    L      5C    \      6C    l      7C    |    
   2D   -       3D    =      4D    M      5D    ]      6D    m      7D    }    
   2E   .       3E    >      4E    N      5E    ^      6E    n      7E    ~    
   2F   /       3F    ?      4F    O      5F    _      6F    o      7F  (del)  
    -                  - END OF BLOCK MONITOR     
  
  
                      DOCUMENT PRINT  Page 1 of 6     
                                                                               
   Documentation Print commands are available Offline by pressing the [F4]     
   key in the Top Menu.  The name of the program you wish to print must        
   already be entered (using [F7] in the Top Menu) before you press [F4] to    
   display the Documentation Menu.                                             
                                                                               
   The ladder program printout can be directed to one of several output        
   devices.  These devices may be selected either by softkeys or named         
   from the keyboard.  Valid output devices are:                               
                                                                               
   Parallel Ports: LPT1     Serial Ports: COM1     A disk file: Any valid DOS  
                   LPT2                   COM2                  filename.      
                   LPT3                                                        
                                                                               
   Your printer will typically be connected to LPT1, which is the default      
   setting.  If you direct the printout to a disk file, you can examine the    
   contents of the file on the screen in MS-DOS by using the TYPE command.     
   You can also print the file on a printer using the PRINT command in MS-DOS. 
                                                                               
    -                                  
  
  
                      DOCUMENT PRINT  Page 2 of 6     
                                                                               
   Each page of your printout will have a Title and a Sub-Title centered at    
   the top.  To enter/change these titles, move the cursor to these fields     
   in the menu.  The Title and Sub-Title are limited to 50 characters each.    
                                                                               
   Other data automatically added to the page title includes:                  
                                                                               
   PAGE number  - The ladder logic page number (000 - 999), printed only on    
                  sheets containing ladder logic.                              
   SHEET number - The printout page number, printed on all sheets of paper     
                  involved in the printout of the program.                     
      Date/Time - This is the taken from the MS-DOS system clock.              
                                                                               
   Printout options are selected/de-selected by moving the cursor to the       
   desired field and pressing [F7] to select, or [F8] to de-select.            
                                                                               
   Selected options are indicated in reverse-video.                            
   De-selected options are indicated in normal video.                          
                                                                               
    -                                  
  
                      DOCUMENT PRINT  Page 3 of 6     
                                                                               
   Options that are printed with the ladder logic diagram include:             
                                                                               
       Ladder Logic Diagram Pages:001-001 - Print the range of ladder logic    
               pages specified.  You can change the range of pages to be       
               printed from the keyboard.                                      
       Circuit Numbers in Ladder - Print the circuit number below each ladder  
               logic line number in the printout.                              
       In-Ladder Coil Cross Reference - Print the cross reference for all      
               coils in a page of logic immediately following the logic for    
               each page.  The format is:  Page-Line-Circuit-Type              
                                                                               
               where:  Page - A 3-digit ladder logic page number.              
                       Line - A 2-digit ladder logic line number (decimal).    
                       Circuit - A 1-digit logic circuit number (hexadecimal). 
                       Type - A 2, 3, or 4-character mnemonic for the          
                               instruction opcode.                             
                                                                               
                                                                               
    -                                  
  
  
  

    
                      DOCUMENT PRINT  Page 4 of 6     
                                                                               
       Print Compressed Ladder & Comments - Print 132 characters on standerd   
               8.5" wide paper.                                                
       Page and Circuit Commentary - For each page of ladder logic, print the  
               page comment first and then the logic.  Also print the          
               circuit comments ahead of each circuit.                         
       Line Commentary (132 column only) - Print the line comment to the       
               right of each line of logic.  This wil print up to 132          
               characters per line.                                            
       Device Description - Print the 3-line description above each device in  
               the logic.                                                      
       Device Synonym - Print the synonym above the device (between the device 
               and the description when Device Description is also selected).  
                                                                               
   Options that are printed on separate sheets after the logic diagram:        
                                                                               
       System Information - Print the system information table.                
       I/O Allocation Table - Print the I/O allocation table.                  
                                                                               
    -                                  
  
  
                      DOCUMENT PRINT  Page 5 of 6     
                                                                               
       Device Usage - Print the device usage of the ladder program.  The       
               notation used for each device (Bit) in the register and also    
               for the register as a whole is shown in the following example:  
                                                                               
                                              YW15   .   III. O            *..M   
                                                             -       -                   
  Reference number for I/O register                                          
  Reference YW15 is not addressed as a register                                
  Bits Y15F, Y15E, and Y15D are used only as Inputs                           
  Bit Y15C is not used                         -                    
  Bit Y15B is used only as an Output                 -                  
  Bits Y15A, Y159, and Y158 are not used                                 
  Bits Y157, Y156, Y155, and Y154 are used as both Input and Output             
  Bit Y153 is used as both Input and multiple Outputs                     
  Bit Y152 and Y151 are not used                           -       
  Bit Y150 is used as multiple Outputs                              
                                                                               
                                                                               
    -                                  
  
  
                      DOCUMENT PRINT  Page 6 of 6     
                                                                               
  Force Usage - Print a list of the Forced devices. This list includes Inputs  
     (X contacts), Link Relays (Z contacts), and Disabled Coils (R,Y,Z coils). 
  Instruction Usage - Print a list of all instruction types found to be used   
       in the ladder logic program, and the number of times each type is used. 
  Register Values XY Z R TC D0000-D1535 - Print the register values. You can   
       select a group of registers to print by placing the cursor over the     
       register type and using [F7] to select and [F8] to de-select.           
       The D register type is range-editable.                                  
  Page/Circuit/Line Commentary Pages: 000-999 - Print page, circuit, and       
       line comments from the range of pages specified.                        
  Device Commentary - Print a list of all device comments.                     
  Cross Reference - Print a complete cross reference of all reference numbers. 
       The cross reference format is:  PAGE-LINE-CIRCUIT-TYPE                  
             where:  PAGE - A 3-digit ladder logic page number.                
                     LINE - A 2-digit ladder logic line number (decimal).      
                     CIRCUIT - A 1-digit logic circuit number (hexadecimal).   
                     TYPE - A 2, 3, or 4-character mnemonic for the            
                                 instruction opcode.                           
    -                   END OF DOCUMENT PRINT     
  
  

                        EXIT TO DOS  Page 1 of 1     
                                                                               
   Pressing [F10] at the Top Menu allows you to exit from EX-PDD and go        
       back to the MS-DOS operating system.  Three choices appear at the       
       bottom of the screen.                                                   
                                                                               
       Temporary exit to DOS - Press [T] if you want to run a DOS utility,     
               and then return to EX-PDD without having to reload the          
               software from disk.  To return back to EX-PDD, type EXIT and    
               then press [Enter]                                              
                                                                               
       Permanent exit to DOS - Press [P] if you want exit from EX-PDD with     
               no intention of returning.  This will release all of the        
               memory which was reserved for running the EX-PDD software.      
                                                                               
       Press [Esc] if you change your mind about exiting from EX-PDD.          
                                                                               
   NOTE: When Temporarily exiting EX-PDD to DOS, be sure that the default      
         EX-PDD drive and directory are selected when EXITing back to EX-PDD.  
                                                                               
    -                     END OF EXIT TO DOS     
  
  

                     - PROGRAM NAME  Page 1 of 1     
                                                                               
   A program name is entered as a standard MS-DOS file name WITHOUT a          
   3 character extension. (Extensions are reserved by EX-PDD.)                 
                                                                               
   Program names are limited to 8 characters maximum.                          
                                                                               
   The program name may be prefixed with any valid disk drive letter and/or    
       sub-directory name.  Some examples are as follows:                      
                                                                               
       PROGNAME            - PROGNAME is found on the default disk drive       
                               and sub-directory (i.e. where EX-PDD was loaded 
                               from).                                          
       B:PROGNAME          - PROGNAME is found on disk drive B.                
       C:PROGNAME          - PROGNAME is found on disk drive C.                
       C:\LADDERS\PROGNAME - PROGNAME is found on disk drive C in a sub-       
                               directory called LADDERS.                       
       LADDERS\PROGNAME    - PROGNAME is found on the default disk drive       
                               and sub-directory in another sub-directory      
                               called LADDERS.                                 
    -                     END OF PROGRAM NAME     
  
  

             - COMMUNICATION PARAMETERS  Page 1 of 8     
                                                                               
   The communication parameters menu allows you to select either COM1: or      
   COM2: to communicate to a PLC.  The PLC Station Number will be S for        
   connection to the PLC Programmer Port, or 0 - F for connection to the PLC   
   RS-422/485 Port.  When S is the station number, the communication format    
   is 4800 baud, 8 data bits, even parity bit, one stop bit.  When 0 - F is    
   the station number, EX-PDD searches to find the PLC baud rate when going    
   Online (9600 - 300 baud).  8 data bits, no parity, and one stop bit is      
   used.  The buad rate search feature can be bypassed by entering the baud    
   rate after COM1: or COM2: as shown in the following example:                
                                                                               
   COM1:4800                                                                   
                                                                               
   This will set the baud rate at 4800.  When you press [F6] from the Top      
   Menu to go Online,  EX-PDD will start communicating to the PLC at 4800      
   baud rather than search for the PLCs baud rate.                             
                                                                               
                                                                               
                                                                               
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 2 of 8     
                                                                               
   The RS-485 computer link switch settings on the EX100 are as follows:       
                                                                               
    off   on                                                                   
         -                                                                 
                                            BR2   BR1   Baud Rate                
    4     -   BR2    Baud rate    (off)                          DIP switch   
    3     -   BR1 -    = 9600      (off)     off   off     9,600     position:    
    2     -   PEN - Parity disabable (off)                                     
    1         PR  - Parity odd/even (off)   off   on      4,800     off = Left   
         -                                                        on = Right  
     EX100                                on    off     2,400                  
     DIP switch                                                              
                                          on    on      1,200                  
                                                                          
                                                                               
       * Toggle switch = Link position                                         
       * Rotary switch = station number (0-F)                                  
                                                                               
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 3 of 8     
                                                                        
   The RS-422 computer link switch       BR2   BR1   BR0   Baud Rate           
           on the EX250/500 are as                                          
  off   on               follows:        off   off   off   Disabled   DIP      
       -                                                             switch   
                                           off   off   on      9,600    positn:  
  8     -  SP0-Cntrl cmnd enable (off)                                         
  7     -  SP1-Prog blk wrt enable (off)   off   on    off     4,800    off=     
  6       SP2-Binary mode (off)                                         Left  
  5       BR0-                    (on)     off   on    on      2,400             
  4     -  BR1    Baud rate = 9600 (off)                               on =     
  3       BR2-                    (off)    on    off   off     1,200       Right 
  2       PEN-Parity disabled (on)                                            
  1        EVN-Parity odd (off)            on    off   on        600             
       -                                                                      
  EX250/500                              on    on    off       300             
  DIP switch  * Toggle switch = up (on)                                      
              * Rotary switch = station  on    on    on      1,200             
                          number (0-7)                                    
    -                                  
  
             - COMMUNICATION PARAMETERS  Page 4 of 8     
                                                                               
   The RS-422 computer link switch settings on the EX200B are as follows:      
                                                                               
    off   on                                                                   
         -                                                                 
                                            BR2   BR1   Baud Rate                
    1     -   BR2    Baud rate (off)                             DIP switch   
    2     -   BR1 -    = 9600   (off)        off   off     9,600     position:    
    3     -   PEN - Prty disab (off)                                           
    4     -   PR  - Prty odd/evn (off)      off   on      4,800     off = Down   
    5     -   MOD - Binary mode (off)                              on = Up     
    6            - Not used                on    off     2,400                  
         -                                                                    
     EX200B                               on    on      1,200                  
     DIP switch                                                           
                                                                               
       * Slide switch = Link position                                          
       * Rotary switch = station number (0-7)                                  
                                                                               
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 5 of 8     
                                                                               
                   DB-9S RS-232 Connector (EX25GP232B-TIC2)                  
                    DB-25S RS-232 Connector (EX25GP232A-TIC2)                 
                           _____________________                               
                          | Programmer Port to  |                              
        3  2   -\        | RS-232 Converter    |           __                 
        2  3     \_______|                     |__________|  | To PLC         
        8  5     /  5-FT | EX25GP232A-TIC2 or  |  5-FT    |__| Programmer     
        5  7   -/  Cable | EX25GP232B-TIC2     | Cable         Port           
                          |_____________________|                              
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 6 of 8     
                                                                               
          EXKRS232-T11 Cable                       EXKRS422-EX Cable           
  Tosh Laptop/IBM-AT    RS-232/422 Conv. EXCNV422-232C Conv.       EX250/500   
   DB-9S                       DB-25P       DB-37S                     EX200B  
  RXD  2 <               2  TXD     SD(A)  22 <          - 1  TXA  
  TXD  3               > 3  RXD     SD(B)   4 <          - 2  TXB  
  RTS  7               > 5  CTS     RD(A)   6           -> 3  RXA  
  CTS  8 <               4  RTS     RD(B)  24           -> 5  RXB  
  SG   5               - 7  SG      GND    20              6  SG   
                                                                               
          EXKRS232-IBM Cable             EX25ADP-6237A Conv.                   
  IBM-XT,Etc            RS-232/422 Conv.    terminals               EX250/500  
   DB-25S                      DB-25P       on converter               EX200B  
  RXD  3 <               2  TXD     RXA  4 <            - 1  TXA  
  TXD  2               > 3  RXD     RXB  6 <            - 2  TXB  
  RTS  4               > 5  CTS     TXA  2             -> 3  RXA  
  CTS  5 <               4  RTS     TXB  3             -> 5  RXB  
  SG   7               - 7  SG      SG   7                6  SG   
                                                                               
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 7 of 8     
                                                                               
  Computer-to-PLC connection can be made through Hayes compatible telephone    
  modems.  Modem initialize, dial, and hangup are handled in the               
  Communication Parameters menu (selected by pressing F8 in Top Menu).         
                                                                               
                                                                               
           -   RS232       -    TELEPHONE LINE       -   RS232               
     COMPUTER       -  MODEM                MODEM       -  RS232/       
     RUNNING                -                         -           RS422        
     EX-PDD          * ORIGINATE MODE          * AUTO-ANSWER      CONVERTER    
           -        * 8-DATA, NO PARITY,           MODE                      
  * SETUP BUAD RATE      1-STOP BIT            * 8-DATA, NO PARITY,      R     
     AND DATA PARAMETERS                            1-STOP BIT           S     
     COMPATIBLE WITH PLC AND MODEMS                                      4     
  * SELECT PLC STATION NUMBER                                        2     
                                                  EX- SERIES PLC       -  2     
                                                                           
                                               * BAUD RATE COMPATIBLE WITH     
                                                                    MODEMS     
    -                                  
  
  
             - COMMUNICATION PARAMETERS  Page 8 of 8     
                                                                               
   This is a typical cable used to connect a Hayes compatible modem to the     
   PLCs RS-422 port via a Toshiba RS-232C/RS422 converter.                     
                                                                               
                           EXKRS232-MDM Modem Cable                            
                                                                               
                  DB-25P (male)                 DB-25P (male)                  
             25-pin connector                      25-pin connector            
                               -shield      1 FG                             
                         2 <          -  2 TXD                            
            Hayes        3            -> 3 RXD                            
            Compatible   4 <          -  4 RTS  RS-232C/RS-422            
            Modem        5            -> 5 CTS    Converter               
                         7            -  7 SG                             
                                                                               
                                                                               
                                                                               
                                                                               
                                                                               
    -             END OF COMMUNICATION PARAMETERS     
  
  

