Rockwell Automation 9323-PA1E USER MANUAL APS 6.0 - Manual (Page 120)

Preface
Advanced Programming Software User Manual
7–4
Documenting Your Ladder Program
You have the option of documenting your program before or after it is entered. If
you have a complex program, it is recommended to enter comments after you have
entered the ladder program.
Adding Comments and Symbols
Rung, instruction, and address comments and symbols help explain your ladder
program to someone else who has to read, modify, or maintain the program.
Deleting Comments and Symbols
Deleting a comment, line, or word places it in the corresponding buffer. If you
choose to insert the deleted item in this or another comment, select the appropriate
undelete function with the cursor at the desired location. You can undelete as often
as you like. Contents of a comment, line, or word buffer remain until you either
delete another comment, line, word, or exit the document function.
Ladder Documentation Conventions
When entering, modifying, or deleting comments, keep the following rules in mind:
•
Rung comments can only be added after the rung contains an output instruction.
The comments are attached to the first output instruction in the rung.
•
If both an instruction comment and address comment exist for an instruction,
the instruction comment is displayed.
•
You can also use the database editor to add, modify, or delete comments,
addresses, and symbols.