Industrial Communications Protocols – the benefits of each – a non-PLC-Vendor look!
Abstract With an array of automation network protocols available today, what should automation and process engineers be looking for to ensure they choose the correct protocol and network topology for their control system? Data communications’ technology for automation systems have been around for a long time. First introduced by Modicon in the late 70’s, Modbus is a typical example of a protocol developed for the industrial arena which, amazingly enough, is still popular today. Today’s automation engineer has a wide choice of protocols...