28
Issue 1.11
ibaBM-DDCS connection to NDBU-95 (parameter channel)
Figure 11: ibaBM-DDCS connection (parameter) to NDBU-95
8.4.3 Ring topology
A ring topology may often be found in older plants.
The telegrams are sent from one drive to the next one via a FO ring. Every drive takes
the data which are addressed to it from the data stream and sends the reply data to the
next drive.
ibaBM-DDCS
POF
ABB
DriveWindow PC
Unidir. POF
Unidir. POF
Bi-dir. POF
Figure 12: ibaBM-DDCS (parameter) with ring topology
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