Question

I added analog IO pointer method during online edits. I then wrote to changes to PLC. But my analog IO still does not work, where do I start checking?

Answer

Make sure you go to Program Mode, then back to RUN. If you do online edits while in RUN mode, the program mode you get when you WRITE program to PLC is just a Pause mode. You can verify by viewing values in system words (V700, V701, etc) to see if they hold the expected values. If they do not, they will populate with correct values when you power cycle the PLC or when you go to Program mode and then back to RUN mode.

Information on Pointer Method is found in the D0-OPTIONS-M manual for each analog module. Click here for Options Manual.

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FAQ Subcategory: Analog

This item was last updated on 2021-01-22
Document ID: 1174

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