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.

Note
	When acquiring data sets in a ring topology, ensure that the connected drives are set to “Ring” topology. In DriveWindow, the parameter “CH0 HW CONNECTION” in the parameter set “DDCS Control” of each drive has to be checked and set to “RING”.