Replacing connections is extremely useful when you need to link your parametric view with multiple PLCs. Link your parametric view with specific PLC by passing the connection parameter at opening command.

As you can see, we are passing a connection to S7-1200 PLC by the first connection parameter $1$.

Using Connection Parameter in Tag Definition #

You can use connection parameters in the tag definition by simply using $index$ instead of a connection alias:

tag@$1$