Omron CS Series Operator's Manual page 58

Outline of Operation Procedure
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10. Monitor/ Debug
10-1 Monitor
Monitor I/O bit status and PV.
Execute force-set/reset, trace, online edit, and others.
10-2 Program Check by Break
Set break points and I/O break conditions in the ladder diagram as
required and stop the program step by step to monitor the contents
of I/O memory.
10-3 Cycle Time Monitor
Confirm the virtual cycle time so that the program execution time on
the actual PLC is within the permissible range.
10-4 Task Operation Check
Check the number and time of the task execution in the [Task Con-
trol] window. If an interrupt task exists, execute the program with the
interrupt timing changed to check the interrupt operation.
10-5 Serial/ Network Communications
Display the contents of serial/network communications to debug with
actual communications.
11. Debugging by Virtual External Inputs
11-1 Generating Virtual External Inputs
Create data/program for virtual external inputs.
11-2 Virtual Run
Generate virtual external inputs using the created data/program to
virtually run the ladder diagram in more actual way.
11-3 Check Results
Check the results of the virtual run by the time chart monitor or
spreadsheet software.
12. Switching to the actual PLC
Disconnect the Simulator and check the program again with the actual
PLC connected.
Refer to 4-3 Step Run and Break.
Refer to 4-4 Task Debugging.
Refer to 5 Debugging Serial Communications and
6 Debugging Network Communications.
Refer to 8-3 Generating Virtual External Inputs.
Refer to 8-4 Running by Virtual External Inputs.
Refer to 8-5 Checking the Result
Section 3-4
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