Rockwell Automation 9323-S5500D A.I. SERIES MICROLOGIX 1000 AND PLC-500 SOFTW - Manual (Page 448)

Troubleshooting and Diagnostics
19-17
Verify Ladder Program and Data Table
SLC 500 programs cannot be loaded to a processor if addresses exist that point to non-
existent data table areas, or if ladder programming errors exist. The verify option
checks address usage in the ladder program against available data file sizes and
automatically expands the data table if necessary. Other programming errors detected
by the verify function include:
•
Labels ( [LBL] ) used more than once in a program file
•
Unknown instruction types
•
Addresses that refer to non-existent I/O modules.
Your program is automatically verified every time it is saved, so you will rarely need to
perform the verify.
To verify the ladder program:
1. From the top level in the ladder editor, press [F6] Utility . The function keys at the
bottom of the screen change to show the utility options.
2. Press [F4] Memmap . The data file screen appears.
3. Press [F9] Verify . The system checks the program for errors, and notifies you if it
finds any. You will see the following message if no errors are found.
Command Portal keys
for this function:
.UMV