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For this tutorial we are going to create a temperature alarm. This Alarm alarm will be triggered when the Temperature temperature is over 50 °C. For this example we have a Virtual Item Item to represent the actual TemperatureSensor sensor and another Virtual Item to represent the Alarm Indicator .
Create an alarm
Creating an alarm in Web Manager by going to Explorer and add a new Alarm; more detail about creating an alarm can found here .
Priority can be set to one of those options (High, Medium, Low and Infofound here. Set the priority accordingly (high, medium, low, or info).
Condition
To create an Alarm we need alarm, specify a condition that triggers the alarm and one or two actions to be executed when the condition is fulfilled or no longer fulfilled, respectively. In this tutorial the condition is a temperature threshold of > 50 °C. The value of the temperature is taken from a predefined virtual item.
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There are two actions, Action on appear will be called when condition state changes from False to True. And Action on vanish will be called when condition state changes from True to Fale. Both of those actions going to change the Value value of the Alarm Indicator.
Action on appear
This action will be called first when Alarm triggered. Here Action will use XCommand function Write to change the Value of Alarm indicator from False to True by writing 1 to item.
Action on vanish
This action will be called first when Alarm vanished. Here Action will use XCommand function Write to change the Value of Alarm indicator from True to False by writing 0 to item.
Other fields
- Single shot
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- ON: The alarm is triggered once and has to leave the alarm state before it can be triggered again.
- OFF: The alarm is re-triggered every time the condition evaluates to True, even if the alarm was in NEW or ACK state before.
- Time program: Specifies a time schedule for this alarm to be enabled.
Alarm is triggered
Whenever this an alarm is triggered, this alarm will show up its status goes to NEW and the action configured in the Action on appear field is executed.
Check the alarm status in the Alarms App.
Alarm Acknowledge can be done An alarm is acknowledged by pressing the ✔ ✔ button in the Actions column.
Also the Action on appear will take a place and change Check the item tree to find that the configured action changed the value of the Alarm indicator item to True in Core Server.
Alarm is
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vanished
Whenever this alarm is vanished. Action on vanish take a place and change vanishes, the action configured in the Action on vanish field is executed. Thus, the value of the Alarm indicator to False in Core Server. item is set to False.
Reporting
The Use the Reporting app to save the alarm history can be saved or printed as a report. in a document.
- Open Web Manager
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- > Reporting
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- Select the menu item Add > Report Instance to get the configuration form.
- In the Report field, choose the report type [Default] Alarms
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- Specify Date range,
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- Alarm and
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- File type
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- Click the Generate report to generate the report instantaneously.