ibaBM-DDCS
Manual
Issue 1.11
23
ibaBM-DDCS connection to NDBU-95, DDCS/DRIVEBUS mode
Figure 7: ibaBM-DDCS connection (data sets) to NDBU-95, DDCS/DRIVEBUS mode
8.3.4
Ring topology
A ring topology may often be found in older plants.
The telegrams are sent from one drive (CH0) to the next one via a FO ring. Every drive
(CH0) takes the data which are addressed to it from the data stream and sends the reply
data to the next drive. The last drive sends back the data to the controller.
The ibaBM-DDCS device is coupled into the ring between the last drive and the
controller.
AC800 M + CI858
POF
ibaBM-DDCS
Unidir. POF
Figure 8: ibaBM-DDCS (data sets) in ring topology
