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Usually, a PLC will have a 9-Pin serial RS232 port with Modbus included as one of the plc communications protocols. Because of efficiency and other advantages, Ethernet has emerged as the dominant commonplace for the bodily layer of many industrial protocols similar to EtherNet/IP, Ethernet TCP/IP, Modbus TCP/IP and Profinet.
All industrial communications are dealt with instantly within our instruments, so you don’t have to slow down your process with a separate translator box. Network control protocol for each network layer protocol supported by different networks. Application layer − It is the topmost layer of the community that is answerable for sending utility requests by the user to the lower levels...Read More