A Niagara R2 / ASD integration has two ASD services but serial tunneling only works with one service.

Issue

A Niagara R2 / ASD integration has two ASD services but serial tunneling only works with one service.

Product Line

TAC I/A Series

Environment

Niagara 522 or higher

Cause

Both services cannot support tunneling simultaneously.

Resolution

Enable tunneling on one ASD service at a time.  Leaving both services enabled for tunneling will only allow the first ASD service to allow a tunnel connection. 

A station restart may be required.