Product specifications

Exchange of CPU in Redundant Configuration with BC810 Section 5 Maintenance
200 3BSE036351-510 A
8. Observe the startup procedure and make sure that Dual mode is reached, that is,
the Dual LED is lit on both processor units.
Exchange of CPU in Redundant Configuration with BC810
If the BC810 is powered from an external power source, the entire CPU, with
baseplate, can be replaced during operation.
Follow the steps below to exchange a halted processor unit
1. Disconnect the Power Supply Socket from the processor unit.
2. Disconnect the RCU Link Cable and optical ModuleBus cable from the
processor unit to be exchanged.
3. Disconnect the Control Network cables.
4. Rotate the locking device to the SLIDE position (2) on the unit baseplate,
see
Figure 17 on page 69.
During synchronization, the new processor unit inherits the IP address from the
running processor unit.
Reuse of CPU modules replaced from redundant configurations within the
same control network, might cause control network problems due to the MAC
and IP address handling. See
MAC and IP Address Handling in Redundant
Configuration on page 49. Such reuse should not be fulfilled unless both the
replaced module and the module previously acting together with it in redundant
configuration are known to be restored from the previous mutual address swap.
It is recommended to set up an IP-config session and use the “Restore factory
settings” option subsequently followed by reassignment of the IP address or
assignment of a new IP address.
Before replacing, the new CPU must be loaded with the correct firmware as in the
existing CPU.
Do not, under any circumstances, remove the RCU Link Cable from the
primary CPU now running in a single state. Removing the cable might cause
the CPU to stop.