The communication bwteen DTM and HART module is HART over ethernet, we can capture the trace by wireshark at the service port of CRA if the HART is configured at the RIO Drop, the CRA service port should be configured mirroring the eth backplane.
Refer to the attachment picture, we can get the HART frame in the CIP data field, we can understand it following the HART command protocol.

Gepubliceerd voor:Schneider Electric Belgium