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

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 PROFICY Machine Edition are located in Chapter 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-up. The PROFINET Controller disables all its
external Ethernet ports until it has retrieved and applied the Media Redundancy Protocol configuration from its
non-volatile storage.
If a configuration containing a PROFINET Controller set up as a Media Redundancy Manager is subsequently
used to generate another configuration, using Generate Secondary Hardware Configuration from the Current
Configuration, for example, the PROFINET Controller configuration in the copy is automatically defaulted to a
Media Redundancy Client.
GFK-2571N May 2018
Chapter 6. Redundant Media
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