Server-to-server communication

Server-to-server communication enables communication between TwinCAT HMI servers via WebSockets. Using server-to-server communication, any data points can be exchanged between the servers. The prerequisite for this is that the symbols are mapped on the target server.

Server-to-server communication can be used in different scenarios. For example, it is possible for a server to tap the data points of any number of subordinate servers. It is also possible for one server to pass the data points on to another server, which in turn passes the data on to the next server.

Server-to-server communication 1:

Server-to-server communication requires a client license (TF2010 - TF2040) on the server to which another server wants to connect. In the scenario shown above, TwinCAT HMI Server 1, TwinCAT HMI Server 2 and TwinCAT HMI Server n require a client license if the higher-level TwinCAT HMI Server connects to them.

Server-to-server communication 2:

Available since version 1.10.1336.0

Further Information