Setting up a Quantum Hot Standby system involves a number of processes, summarized in the following paragraphs here and explained in detail elsewhere.

A Quantum Hot Standby requires two racks with at least four slots. Map the two racks in an identical manner as described in Identical Configurations.

Connect the two Quantum Hot Standby CPUs with a fiber optic cable as described in Hot Standby sync-link topology.

The system determines that one of the two Quantum Hot Standby CPUs is the Primary, the A, CPU (and that the second CPU is the Standby, the B, CPU), refer to Establishing the Primary and Standby Controllers and Distinguishing between Controllers.

The Keypad may provide status information. Therefore, to view the status, use the Quantum Hot Standby CPU keypad by selecting Quantum PLC Operations → PLC Operations Hot Standby → Hot Standby Order.

Refer to CPU Controls and Displays and Using the CPU LCD Display Screens.

Using Control Expert, configure a network that is appropriate for the installed racks and the cabling.

Configure the Hot Standby Register for the Quantum Hot Standby CPU in Control Expert as described in Processor Configuration Screen.

Transfer the program from your PC to CPU using the Control Expert command PLC → Transfer program to PLC.

Refer to Application Program Transfer.

After making sure that the primary CPU is in the RUN mode, send your program from the primary CPU to the standby CPU using the primary or standby CPU keypad. Select Quantum PLC Operations → PLC Operations Hot Standby → Hot Standby Transfer → Press <ENTER> to confirm Transfer.

Refer to Using the HE CPU 67160 LCD Display Screens.