Issue
After a period of time graphic, Dynaview, Actipane, alarm and logging data stops updating
Environment
Sigma (all)
Cause
Controller communication buffer is not clearing due to data being routed to non-existent Sigma servers. This can occur if after engineers use their laptops as a temporary server then remove it without stopping any logging or alarm routing they set-up.
Resolution
- Check that the controller alarm buffer is retaining data by performing a controller stat (F3).
- Firstly, attempt to clear the buffer by performing 'Request Deferred Logs and Alarms' If un-successful then;
- Check all the logging and alarm routing information is correct for the on-line server
- Check that the tolerance setting is correct for the analogue object values
- Check the controller backup/default servers are set correctly
- Clear the controller archive using the SDCU utility Advanced option
- Cold start the controller and allow the server files to download.