Issue
Communication with a Sigma controller via its LAN connection is not possible when connected through another controller’s service port.
Product Line
Satchwell BAS & Sigma
Environment
Satchwell Sigma
Cause
When the Sigma system is incomplete or lacks access to a Sigma server:
- Messages generated by controllers cannot be delivered to the server
- These messages accumulate in the Alarm Buffers
- This buildup can block communication between controllers
Resolution
If the system will operate without a Sigma server, apply the following recommendations:
- Avoid programming object alarms
- Do not configure system logging
- Avoid configuring global objects unless full controller access is guaranteed
- Create an archive of the controller for backup
- If the system will be offline for less than 5 days, use Set Controller Mode:
- Navigate to:
System Diagnostics → Options → Set Controller Mode - Select the functions to inhibit
- Set the duration (up to 7200 minutes)
- Navigate to:
