The "ibaBM-DP” device module shows two bus nodes "X40: Bus 0” and "X41: Bus 1", which represent the two bus connections available on the device, see chapter PROFIBUS DP connections X40 (Bus0) and X41 (Bus1).

Modules that are configured on "X40: Bus0" or "X41: Bus 1" physically refer to the respective bus connection.

If you mark a bus node, all status and diagnostic information as well as the measured bus voltages for the connected PROFIBUS line are shown.

For a detailed description, please see chapter Diagnostic functions.