What are Modbus TCP IP and Ethernet IP?
Modbus TCP/IP is an extension of the Modbus protocol that utilizes ethernet technology to communicate. Ethernet/IP is a network protocol adapted from the Common Industrial Protocol (CIP), like DeviceNet, that extends the capabilities over ethernet. The purpose of Modbus TCP/IP and Ethernet/IP technology is to monitor and control data for automation purposes. While both protocols are open standards, utilize the TCP/IP protocol stack for communication, and exchange data in real-time, they still have many differences. Modbus operates on a client-server model and Ethernet/IP uses producer-consumer. Modbus organizes data into a flat structure of registers and Ethernet/IP uses an object-oriented data structure. Because of these differences, Modbus TCP/IP is typically used for smaller, simpler systems and Ethernet/IP is used for larger, more complex ones.
Acromag offers Modbus TCP/IP modules manufactured for reliable and flexible integration into ethernet networks and Ethernet/IP modules with features like high-speed data transfer and support for complex control applications. With both modules’ many features and rugged construction, they are ideal for withstanding harsh environments and applications in manufacturing, oil/gas, water, and power generation industries.
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