Overview

The TF6250 TwinCAT 3 Modbus TCP function enables communication via the open Modbus protocol using a network connection (TCP/IP).

Modbus is an open industry standard that is maintained and managed by the independent Modbus Organization.

The protocol is based on a client/server architecture. The function offers the option of serving as a Modbus client or server:

Overview 1:

Server functionality:

(1) The TwinCAT Modbus TCP Server enables access to the complete memory area of the TwinCAT PLC via the network.

Client functionality:

(2) The supplied PLC library makes it possible to communicate with other Modbus devices in order to exchange information (e.g. measured values, states) and to control them.