As of this writing, Modicon does not have Ethernet built in to any of its PLCs. However, it does have an Ethernet TCP/IP module which can be added to the Quantum PLC backplane. Modicon also is rumored to be working on a Momentum PLC with Ethernet TCP/IP capabilities. Our understanding is that both PLCs will use the same method to communicate over Ethernet.
The module required for communicating via Ethernet with the Modicon Quantum is called the Modicon Quantum Ethernet TCP/IP Module (140 NOE 211 00). It fits directly into the Modicon Quantum backplane.
The Modicon Quantum Ethernet TCP/IP requires the following versions of Modicon products:
Quantum Executive 2.0
Modsoft 2.31
Concept 2.0
Modlink 2.0
If you are adding Ethernet TCP/IP to an existing Modicon Quantum PLC with the older Executive, you will need to upgrade to the new Quantum Executive, which may require converting existing Modsoft and Concept projects.
Follow the instructions in the Modicon Quantum Ethernet TCP/IP Module User Guide (840 USE 107 00) for installing and configuring the module.
If you need help setting up your network, either consult your network administrator, or for simple stand-alone networks, see Setting up a Stand-alone TCP/IP Control Network.
The MaSTeR (MSTR) ladder logic block is used to read and write registers in remote devices over Ethernet. The RMC has 65536 registers that can be read and/or written. Refer to the RMC Register Map (Modbus/TCP and Modbus/RTU) topic for a map of the register addresses. Refer to the following topics for details and examples on using the MSTR block:
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