Display of the CAN node address 0 in the system bus configurator

Question:
Why and when are the remote maintenance modules (EthernetCAN EMF2180, ModemCAN EMF218) in the system bus configurator displayed with the node address?

Answer:
If the remote maintenance modules are operated without any system bus/CANopen network, in the system bus configurator following message is displayed after the diagnostic has been executed:  'Field devices were found at the following addresses:0'

The red CAN LED of the remote maintenance modules signalizes an error status designated with Singelflash = CAN error counter overrun. This error status indicates that no system bus/CANopen network is connected. In this status there is, however, no restriction regarding communication between the PC and the remote maintenance module.

If a systembus/CANopen network is connected to the device, the CAN node address set in code L-C0350 in the remote maintenance module becomes effective and the diagnostic makes appear the set CAN node address.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/200503520/1/