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AMS Device Manager (Undefined Response code to Command 140)


We have connected a HART device via Phoenix Contact GW PL ETH/BASIC BUS MUX through Multiplexer interface in AMS Device Manager v 14.1.1. 

We can see the devices under the MUX, but when we double click on any device like shown in the snapshot, it reads some values and displays the error as shown. Can you please help to troubleshoot what is the problem?

The HART Device is Endress Hauser CM42 ph Transmitter.

By the way, everything works fine when we go with other multiplexers like MTL4850.


Shaiq Bashir