Modbus TCP/IP Ethernet Protocol

The Modbus TCP/IP Ethernet protocol is a part of the MBTCP OI Server, which must be installed on your computer and configured for the PLC with which you wish to communicate.

• This Modbus TCP/IP Ethernet protocol can be used in a network with up to 1024 slave devices.

  Note: For more information on the Modbus protocol and to better understand how to read and write data to the different Modicon controllers, please refer to the Modicon "Modbus Protocol Reference Guide" (PI-MBUS-300) from Schneider Electric.

• Direct Connectivity

  The Modbus TCP/IP Ethernet protocol is utilized to directly connect to the following Modicon controllers through the TCP/IP port.

  • TSX Quantum controllers

  • TSX Momentum controllers

  • TSX Premium controllers

  • Generic Modbus TCP (4-Digit, 5-Digit, and 6-Digit) controllers

• Indirect Connectivity

  The TCP/IP Ethernet protocol, through the TCP/IP port and down to either a Modbus Bridge or NR&D Pen-T Bridge is used to communicate with the following controllers:

  • Compact 984 controllers (via RS232)

  • Modicon Micro controllers (via RS232)

  • TSX Momentum controllers (via RS232 or RS485)

  • Generic Modbus Serial (4-Digit, 5-Digit, 6-Digit) controllers (via Serial RS485)

    For more information about Modbus Bridge models and other supported hardware, see Supported MBTCP OI Server Hardware and Firmware