Ring Topology With Multiple Controllers - GE IC695PNC001 User Manual

Ring Topology with Multiple Controllers

The next illustration shows a more complex network. There is one RX3i CPU node with two PNC
modules, a second RX3i CPU node with one PNC module, and five IO-Devices, in this case,
VersaMax PNS modules.
All devices are on the same network ring. One PNC is configured as the Media Redundancy
Manager (MRM); the other PNCs and all PROFINET Scanners are configured as Media
Redundancy Clients (MRCs).
IO LAN 1
IO-Device
IO-Device
IO-Device
GFK-2571A
IO LAN 1
RX3i CPU Node with
two PROFINET
Controllers
Chapter 6 Redundant Media
RX3i CPU Node with
one PROFINET
Controller
IO LAN 1
IO-Device
IO-Device
6
6-5