Step
|
Action
|
---|---|
1
|
Configure two racks with identical hardware and firmware.
|
2
|
NOTE: Ensure that the fiber optic sync-link cable is connected between the controllers. |
3
|
Start Control Expert software and configure the local rack and the Remote I/O drop for your physical configuration.
|
4
|
Execute the Build Project command and save your application program.
|
5
|
Power up and connect Control Expert to one controller.
NOTE: The front panel keypad displays No Conf. |
6
|
Download your application program and put the controller in the RUN mode.
NOTE: The controller becomes the RUN Primary CPU. |
7
|
Power up the other controller.
NOTE: Application Program Transfer occurs automatically. The other controller becomes the RUN Standby CPU. |
8
|
Ensure the Primary CPU and Standby CPU controllers are in RUN Primary CPU and RUN Standby CPU mode.
|
Step
|
Action
|
---|---|
1
|
Access the front panel keypad of the Primary CPU controller.
|
2
|
Go to PLC Operation → Hot Standby → Hot Standby Mode
|
3
|
Change Run to Offline.
NOTE: Ensure that the Standby CPU switches to Primary CPU. |
4
|
Change Offline to Run.
NOTE: Ensure that the LCD displays Run Standby CPU. |
Step
|
Action
|
---|---|
1
|
Connect Control Expert to the Primary CPU.
|
2
|
Observe if the controller order on the Primary CPU is A or B using either of the following methods:
NOTE: Ensure that the Standby CPU switched to Primary CPU If bits %SW60.1 and %SW60.2 are set to 0 simultaneously, a switchover occurs:
|
3
|
Connect Control Expert to the new Primary CPU.
|
4
|
Access the Command Register system bits as in Step 2 and set them ti 1.
NOTE: Ensure Standby CPU displays RUN Standby CPU. NOTE: Ensure the Primary CPU and Standby CPU controllers are in RUN Primary CPU and RUN Standby CPU mode. |