Modbus/TCP

Standard Modbus protocol for industrial Ethernet.

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Modbus/TCP Industrial Protocol Over Ethernet TCP/IP

Liberty MDrive Ethernet TCP/IP products supporting Modbus are  available in two motor styles:

  •  Standard or high-torque rotary motor
  • ACME screw external shaft linear actuator

Both stepper motor styles are available in open loop, closed loop or with a multi-turn absolute encoder.

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Rotary Products

Liberty MDrive Ethernet rotary motor products with Modbus are available in standard sizes: NEMA 17, NEMA 23 & NEMA 34.

Linear Products

Liberty MDrive Ethernet external shaft linear actuator products with Modbus are available in standard sizes: NEMA 17 & NEMA 23.

Modbus/TCP Resources

Third-Party Integrations

How to set up a Liberty MDrive Ethernet  to communicate over Modbus/TCP to a Maple Systems HMI using the Liberty MDrive Software Suite and Maple’s EasyBuilder 5000 software.

How to set up a Liberty MDrive Ethernet  to communicate over Modbus/TCP Pro-face HMI using the Liberty MDrive Software Suite and Pro-face’s GP-Pro EX software.

Modbus/TCP Overview

Modbus/TCP is one of the most widely used industrial Ethernet solution for factory automation. The MODBUS protocol was originally developed in 1979 by Modicon to be used to communicate over RS232 and RS485. MODBUS/TCP is a TCP/IP adaptation of the MODBUS-RTU protocol using the standard TCP/IP stack. MODBUS is a client/server protocol. Services are provided via function codes to read or write data in bit or word form. MODBUS/TCP is used in 22% of industrial Ethernet networks, making it compatible with a large array of devices.

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