Browse FAQs

Why is my M340 only recognizing modules in the local rack and not the extended one?

Published date: 05 January 2019

The M340 in the main rack is only recognizing the local IO modules, the expanded rack IO modules are not seen.

Product line
Modicon M340

If the software and hardware configurations both match, the issue could be that the cable between the BMXXBE1000 modules is reversed. Power down the backplanes, reverse the cable and power up to see if that resolves the issue.

Was this helpful?

What can we do to improve the information ?

Can't find what you are looking for?

Reach out to our customer care team to receive information on technical support, assistance for complaints and more.