System Structure

A HA-CS31 system is characterized by two AC500 CPUs with the following features:

• Synchronized by means of UDP ETHERNET Bus system.
• Identical application program that is loaded in both CPUs.
• Two CS31 master systems with redundant CI590-CS31-HA slave(s) and additionally connected I/O devices.

• Single CS31 Bus on CPU COM Port
• CS31 Bus Extension with CM574-RS Module
• Details of Control and State Byte
• HA-CS31 Limitations