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July 17th, 2009, 03:16 PM #1Kam_ew33 Guest
Difference between Modbus, Modbus Plus, and ModbusTCP/IP?
What is the difference between Modbus, Modbus Plus, and ModbusTCP/IP?
July 17th, 2009, 03:18 PM #2WooHoo88 Guest
Modbus is a serial master/slave protocol. Modbus can run over any serial type media (copper, fiber, wireless, modem, etc..)
Modbus Plus is a peer-to-peer protocol which runs at 1 mbs. The Modbus Plus protocol specifies the software layer as well as the hardware layer. Proprietary cabling and terminators must be used with a Modbus Plus network.
ModbusTCP/IP is an EtherNet based protocol. Most of ModbusTCP/IP products act in a master/slave capability.
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