Standby controller Saia PCD3.M6880

As a redundant automation solution, the Saia PCD3.M6880 standby controllers ensure interruption-free operation of your systems and processes. They feature two independent processors. The redundant programs in the primary and secondary Saia PCD are identical. During normal operation, only the active Saia PCD handles the redundant program. In the event of an error, the standby CPU takes over operation without interruptions and handles the redundant program with the same process image as the active Saia PCD before.