System for communicating diagnostic data in an industrial control system

摘要: A system and corresponding method for communicating non-I/O data between components of an industrial control (ICS) including or automation devices a programmable logic controller. The includes the steps of: having one components, such as device, transmit formatted message frame in same way I/O is frame, type identifier to identify that bears data; another controller, receive encapsulated wherein receiving component identifies based on conveyed with extracts from frame. transmitting transmits over field bus PROFIBUS, INTERBUS, DEVICENET, CAN, CAN OPEN types bus. can also indicate either sender both intended recipient. ICS communicate non each include translator module encapsulate de-encapsulate (virtual I/O) frames, pre-determined correspond data.