Graphic, Dynaview, Actipane Alarm and Logging Data Stops Updating

[Product_Support]

Issue

After a period of operation, graphics, Dynaview, Actipane, alarm, and logging data may stop updating in Sigma systems.

Product Line

Satchwell BAS & Sigma

Environment

Satchwell Sigma

Cause

This issue is typically caused by the controller communication buffer not clearing. A common scenario is when engineers temporarily use their laptops as Sigma servers and later disconnect them without disabling logging or alarm routing. As a result, data continues to be routed to non-existent servers, causing the buffer to fill up.

Resolution

Follow these steps to resolve the issue:

1. Check Controller Alarm Buffer

   • Perform a controller stat (F3) to verify if the alarm buffer is retaining data.

     

2. Attempt to Clear the Buffer

   • Use the ‘Request Deferred Logs and Alarms’ function.

3. If Unsuccessful, Proceed with the Following Checks:

   • Ensure logging and alarm routing information is correct for the active server.
   • Verify the tolerance settings for analogue object values.
   • Confirm that controller backup/default servers are correctly configured.

4. Clear the Controller Archive

   • Use the SDCU utility (Advanced option) to clear the archive.

5. Cold Start the Controller

   • Perform a cold start and allow the server files to download again.

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Additional Notes

• Always ensure temporary servers are properly decommissioned by stopping any active logging or alarm routing before disconnecting.
• Regularly monitor controller buffers to prevent data loss or system lag.