Question

My inputs X0-X3 and/or my outputs Y0-Y1 are not working. What's wrong?

Answer

The PLC is most likely in a high speed counter mode. When in high speed counter mode inputs X0-X3 and/or Y0-Y1 will not act as normal I/O. To reset the processor to treat X0-X3 and Y0-Y1 as normal I/O, Initialize the scratchpad by:

• PLC >> SETUP >> INITIALIZE SCRATCHPAD

Be aware that initializing the scratchpad will reset the system V-memory to defaults. System V-memory contains parameters such as retentive ranges, DV-1000 setup parameters, etc.

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FAQ Subcategory: CPU & Programming

This item was last updated on 2021-01-22
Document ID: 31

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