SIMATIC WinCC Open Architecture Forum

What is the best way to disable Alarm for configurable period of time?
This should be done in runtime, with minimum user access check.
Alarm to be re-enabled automatically after time lapsed.

Hi,

Are you talking about shelving or totally disabling it?

if disabling, you can use _alert_hdl.._active to disable it.

Be careful about some points:
- If you activate again, new instance will be generated not related to previous one.
- Use dpSetTimed with NULL time: To avoid an increasing size of the configuration history the time of the configs _alert_hdl and _alert_class can be set with dpSetTimed(0,...).

If shelved, you will need to develop it yourself. Perhaps using add_values and filters.

BR
Alex

In the topic 'Alert with time hysteresis' there are some suggestions to temporary disable alarms.