It is sometimes a requirement to run a PLC program for testing without affecting the actual real outputs. There we discribe how this can be carried out on FX PLCs.

Design Considerations

To be able to run a PLC program in a test mode such that the program will respond to inputs but will not drive the real outputs, special relay M8034 must be used as follows:

Further Information

For further information please refer to the appropriate PLC programming manual.

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