How do I remove an overflow Analog Input alarm from populating the System Alarm List
I believe few good options exist that have no drawbacks
- Type of IO module and field connection? Maybe you can adjust over or underflow limit? Shunt?
- Change system alarm settings on CPU to a setting you can filter out in alarm list
- With Feature Pack edition you can group individual alarms into a group; original alarm will be suppressed
- Alarm Hiding
- I believe there is a CBM function block called AttachSystemAlarm() which can be used to adopt a HW alarm and suppress or make own handler
One option like Stefan said use ‘Filter out system alarm from hardware units’ in AC800M controller. Four options are available in the drop down list and any option can be used based on requirement. It is recommended only during commissioning time. This filter should be turned off before putting system into production.