8.1.5 Output Check
If the output status monitored on the programming tool is normal but the external output device (load) is not operated normally, check the following points:
| Is the output status |
No | changed ON/OFF |
to the program execution |
Check the voltage 
the output terminal and 
common 
Check the voltage at the 
Check the I/O allocation table is identical to
the actual I/O configuration
Not identical
Execute the automatic 
allocation, and check 
the I/O allocation table is 
identical to the actual 
If it is not normal, check the output cable connections.
If it is normal, check the specification of the load, also check environmental factors.
In force run mode, physical inputs and outputs are not updated.
Download the application now and execute the ladder.
Check for faulty expansion unit one by one
Replace the faulty expansion unit.
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