Setting Up Media Redundancy Protocol - GE IC695PNC001 User Manual

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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.
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.
Media Redundancy Setup for a PROFINET Controller
A PNC module can be configured as either a Media Redundancy Manager (MRM) or a Media
Redundancy Client (MRC). By default, Media Redundancy is disabled for the PNC. 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 PNC's switch ports are connected to the
ring.
The PNC stores the current Media Redundancy Protocol configuration settings in non-volatile
storage so it can configure the switch port appropriately at powerup. The PNC 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 PNC set up as a Media Redundancy Manager is subsequently used to
generate another configuration, for example using "Generate Secondary Hardware Configuration
from the Current Configuration", the PNC configuration in the copy is automatically defaulted to a
Media Redundancy Client.
PACSystems* RX3i PROFINET Controller Manual – December 2011
6-6 GFK-2571A