Modbus TCP

Estimated reading time: 1 minute

Refer to these sections for details:

Supported Series

Modbus TCP Controller.

Websitehttp://www.modbus.org/

PLC Connection Settings

Parameters Recommended Options Notes
PLC Type Modbus TCP/IP

PLC Interface Ethernet

Port # 502

PLC Station # 1 0 ~ 255

PLC Configuration

The steps shown here are for the Modbus TCP/IP PLC.

Communication Mode: Modbus TCP/IP protocol

OT Link Platform DeviceHub Configuration

To configure DeviceHub for this Modbus TCP/IP PLC:

  1. DeviceHub > Add Device
    Type: Modbus
    Driver: Modbus TCP

  2. Enter details specific to your environment and click Add Device.

Device Addresses

Bit/Word

Device Type

Format

Range

Description

B

D

DDDD

0 ~ 9999

Discrete Input Contacts

B C DDDD 0 ~ 9999 Discrete Output Coils
W H DDDD 0 ~ 9999 Analog Output Holding Registers
W I DDDD 0 ~ 9999 Analog Input Registers