Dear Sir,
our client want to pool data from VTScada server,
the VTScada already have OPC server license,
they want to pool data from another computer,

is there any tutorial / guide?

we already try to read the documentation, but still not understand,

• where we create the Opcserver tags? is it below the driver / port tags?
• for example server and client user windows 7, whats should we configure in windows?

Check out the following from the VTScada online help files:

https://www.vtscada.com/help/Content/D_Tags/Dev_OPCServerTag.htm

Note: You can press F1 in VTScada at any time to load the built-in files which will be specific to the version of VTScada you are using.