Automation system for controlling and monitoring technical system, especially power station

摘要

The system has a number of redundantly operated automation devices (2) that are connected together via a bus system (6) and each with an associated bus module (8) for controlling data exchanges. The power supply for each bus module can be switched on or off using the output signal (A) of the corresponding automation device. A diagnostic module (18) sets or resets the output signal according to the operating state of the automation module