GE PACSystems RX3i

Chapter 1. Introduction
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1.6.12 RSTi-EP Standalone CPU with embedded PROFINET Controller
using MRP
Figure 17 shows one RSTi-EP CPE100/CPE115 embedded PROFINET Controller that uses a PROFINET
I/O network with MRP ring topology. CPE100/CPE115 LAN2 Port 2 & Port 3 support Media
Redundancy and on configuring MRP as Manager / Client LAN2 Port 4 can be used for connecting
Simplex PROFINET devices or any other Ethernet Protocols such as Modbus, SRTP, and EGD. Use of
MRP ring topology is recommended because it eliminates the I/O network as a single point of failure.
If elimination of a single point of failure is not required, a star topology can be used.
Figure 17: RX3i System with one PROFINET Controller and PROFINET IO Network MRP