Supported device protocols

The Modbus Ethernet (MBTCP) Communication Driver is designed to provide connectivity to the family of Modicon controllers through the following supported network communications protocol:

• Modbus TCP/IP Ethernet protocol

Modbus TCP/IP ethernet protocol

The Modbus TCP/IP Ethernet protocol is a part of the MBTCP Communication Driver, which must be installed on your computer and configured for the PLC with which you wish to communicate. The Modbus TCP/IP Ethernet protocol can be used in a network with up to 1024 slave devices.

• 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.

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).