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