22 ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019
ControlEdge HC900 Redundant Controller Rack
A ControlEdge HC900 Redundant Controller is shown in the following figure.
1. Rack
2. Redundancy Switch Module (RSM) . Interface between Lead/Reserve controllers.
3. Lead/Reserve controllers. Two C75 CPUs, designated “CPU-A” (left), “CPU-B” (right).
4. Two 900P01-xxxx Power Supplies.
5.
Figure 8 – Redundant Controller Rack Components