![]() ![]() Similar protocols with these standards are Profinet, ControlNet, DeviceNet and RAPIEnet. This protocol was developed by Rockwell Automation. It defines all the devices on a network as a series of objects and binds all of them to work on the same standard. It is an advanced version of standard Ethernet, which is useful only for in-home and commercial purposes but not for industrial applications. It is a protocol that works under Common Industrial Protocol (CIP), which is an open application layer protocol. We will here see the various communication methods used in a PLC: Ethernet/IP You must be familiar with OSI layers and different types of communication hardware ports used in PLC, to understand the whole cycle of communication in a better way. ![]() Apart from traditional hardware IO’s, communication protocols provide more diversity and flexibility to exchange data with various means. HART (Highway Addressable Remote Transducer) Ĭommunication is an important role player in PLC. ![]()
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