Issue
In a Niagara R2 station with two ASD services configured, serial tunneling only works for one service. Attempts to enable tunneling on both services fail.
Product Line
TAC IA SeriesEnvironment
- Niagara R2 version 522 or higher
- ASD integration with two ASD services
Cause
Niagara R2 does not support simultaneous tunneling for multiple ASD services. When tunneling is enabled on both, only the first ASD service establishes a tunnel connection.
Resolution
- Enable tunneling on one ASD service at a time.
- If tunneling was previously enabled on both services, disable tunneling on the second service.
- Perform a station restart to apply changes.
