Setting Up Media Redundancy Protocol; Media Redundancy Setup For A Profinet Controller - Emerson PACSystems RX3i User Manual

RSTI-EP PROFINET I/O Controller User Manual
GFK-2571R
Figure 100: Ring Topology with Multiple Controllers
6.4

Setting Up Media Redundancy Protocol

Media Redundancy must first be set up in the hardware configuration of all devices on the
LAN. Instructions for configuring Media Redundancy using PAC Machine Edition are in
Section 3: Configuration.
Only one device on the ring can be configured as the Media Redundancy Manager. All other
devices on the ring must be configured as Media Redundancy Clients.
6.4.1

Media Redundancy Setup for a PROFINET Controller

A PROFINET Controller can be configured as either a Media Redundancy Manager (MRM) or
a Media Redundancy Client (MRC). By default, Media Redundancy is disabled for the
PROFINET Controller. To be used, it must first be enabled and set up in the configuration.
Configuring a Media Redundancy Manager includes specifying a test interval and retry count
for ring failure checking. It also includes specifying which of the ports on the PROFINET
Controller are connected to the ring.
The PROFINET Controller stores the current Media Redundancy Protocol configuration
settings in non-volatile storage so it can configure the switch port appropriately at power-
Redundant Media
Section 6
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