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Chapter 11. PROFINET Redundant Media
Sequence for Replacing a Media Redundancy Manager
11.6
If it is necessary to replace the PNC 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 PNC and adding it to
the network, as described above.
The following procedure can be used to replace a PNC that is operating as Media
Redundancy Manager while allowing the devices on the ring to continue operating.
1. Physically disconnect both of the ring's network connections from the RXi Controller that
2. Replace the RXi Controller.
3. Using the Machine Edition programmer, make sure the hardware configuration is stored
4. Using the Machine Edition programmer, view the Fault Tables to make sure the PNC is
5. Physically reconnect both of the ring's network connections to the replacement RXi
Procedure for Disabling Media Redundancy
11.7
When disabling Media Redundancy, the ring must be physically opened before storing
configuration to the modules. Here is the procedure to successfully disable Media
Redundancy on a network.
1. If the ring has no breaks in it, physically disconnect one (and only one) of the ring's
2. Change the configuration for the device that is the Media Redundancy Manager so that it
224
is serving as the Media Redundancy Manager.
to the RXi Controller.
operating correctly.
Controller.
network connections from the PNC that's currently the Media Redundancy Manager.
will no longer be the Media Redundancy Manager. If a PNC is the Media Redundancy
Manager, use Proficy Machine Edition to disable the Media Redundancy role on that
PNC and then to download the hardware configuration. (If a third-party IO-controller is the
Media Redundancy Manager, the appropriate third-party configuration tool must be used
instead.)
PACSystems* RXi Distributed IO Controller User Manual
GFK-2816F
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Troubleshooting
