Technical data

W&T

Subject to errors and modifications

3.10 Modbus TCP

Modbus TCP is a software interface for address-based access

to process data. The W&T Web-IOs work as Modbus servers

(slaves) which can be controlled by a variety of Modbus TCP

controllers (clients).

Modbus TCP access allows you to read the analog in- and

outputs. You can also set outputs.

The Web-IOs are not intended to be configured using Modbus.

This is done from the Web browser.

3.10.1 Configuration for Modbus TCP access

m Required access rights: Administrator

From the Web-IO navigation tree select Config >> Device >>

Basic Settings >> Binary 1.

For Operation Mode set TCP-Server mode and check Enable

Binary.