How to programmatically distinguish the port's domain for a simscape block? Like a connection belonging to foundation​.electrica​l.electric​al or physical signal?

How to programmatically distinguish the port's domain for a simscape block? Like a connection belonging to foundation.electrical.electrical or physical signal?

I am trying to automate connections between simscape custom blocks, the custom library is old and hard to change now. So for explaining the situation, consider the below example, a simple voltage sensor and code

LConn1 => + (node and bidirectional)

RConn1 => V (Physical Signal, unidirectional)

RConn2 => - (node and bidirectional)

So to automate the connections, add_line, RConn and LConn properties are used:

SourceConn = PortDetails.RConn(x)

add_line(Model_Name, SourceConn,... are the commands used.

But to automate, the distinction between RConn1 and RConn2 is needed, so a if-block can be used in code, that can allow add_line command to connect nodes to nodes only and wont try to

1. Connect a physical signal port (V) to a node and stop execution.
2. Connect a physical signal port (V) to another physical signal port (which could be on other block's input side ... I tried "try-catch-end" but failed due to this scenario).

So kindly let me know if there are anyways/commands/or a work around way to extract information about Simscape ports by which such automation is possible.

Thankyou.