General description

From TwinCAT 3.1 Build 4024.0 The functionality described here is available from TwinCAT 3.1. 4024.0.

Secure ADS is an additional transport channel from the point of view of the ADS protocol. Precisely the same ADS commands are transmitted via a secure connection as via other communication protocols.

To this end a connection encrypted by means of TLSv1.2 is established from one TwinCAT router to another.

Due to the implementation inside the TwinCAT router, existing applications do not need to be modified. They can be made to use the encrypted connection by simply parameterizing the used route.

This documentation illustrates the different options of Secure ADS, in particular with regard to the provision of the keys.

Detection of a Secure ADS route

TwinCAT displays a Secure ADS route with a lock icon.

It is displayed at the appropriate points:

• Route overview of a system

• When selecting the target system in the XAE engineering environment:
•