OPC Client licenses count


When connecting to several OPC servers, is it necessary to have several OPC Client licenses?

Product Line

TAC Vista


TAC Vista 5.x


In some cases, several counts of the same license module is required if several simultaneous sessions are in use. (Example: Workstation)


You can connect to several OPC servers simultaneously while you just have (1) one OPC Client license.

This can be tested with the Demo license file as there is a OPC Client license module included.