Chapter 6. Redundant Media
GFK-2571N
May 2018
139
6.6
Sequence for Replacing a Media Redundancy Manager
If it is necessary to replace the PROFINET Controller that is serving as the Media Redundancy Manager, the
replacement module must be set up as a Media Redundancy Manager before adding it to the ring. Alternatively,
the ring must be opened before powering up the new module and adding it to the network, as described above.
The following procedure can be used to replace a PNC001 module that is operating as Media Redundancy
Manager without disrupting the network.
1.
Verify that the ring has no breaks in it, or that the only break involves the Media Redundancy Manager
itself. If the ring is already broken someplace else, the Media Redundancy Manager must remain
operational at all times or connectivity between the remaining devices is not guaranteed.
2.
Physically disconnect both of the ring’s network connections from the PNC
001 module that is serving as
the Media Redundancy Manager.
3.
Remove the disconnected PNC001 module from the RX3i rack.
4.
Using the Machine Edition programmer, make sure the configuration encompassing the removed PNC001
module is stored to the RX3i CPU.
5.
Insert the replacement PNC001 module into the RX3i rack in the allocated slot.
6.
Using the Machine Edition programmer, view the Fault Tables to make sure the PNC001 module is
configured correctly.
7.
Physically reconnect both of the ring’s network connections to the replacement PNC
001 module.
