Overview

TwinCAT S7 Communication enables data to be exchanged between the TwinCAT system and a Siemens S7 controller. The product is available both in the form of an easy to configure TwinCAT I/O device as well as a PLC library. The underlying protocol implementation is based on the TwinCAT TCP/UDP RT driver and allows read/write commands to be placed on absolutely addressed variables of an S7 controller, whereby various S7 systems and functionalities are supported.