Impossible to onboard IO from extension

[Hanna]

When I try to onboard IO points to an MPC_36, it is not possible to onboard the points that come from an extension. It says that 12 are used and 24 are free, yet I can't pull in my points even though they are analog out and I have 20 UC/UB free.

[StefanLundin · Accepted solution]

Hi,
I noticed that several IO points on your unassigned IO list share identical names. While I can’t see the full IO list for the MP-C-36 and therefore can’t confirm if this is the root cause, please note that using IO points with identical names on the same device is not supported.

Feel free to get back to me if this isn’t the case or if you need further assistance.

[Hanna]

Thanks Stefan, that was the root cuase!