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Data outage alarms
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Data outage alarms are generated if data loggers are communicating with VCOM but no data is being imported. As with other alarms, you can choose the monitoring period and a delay.
The following graphic illustrates a typical communication scenario between the data logger and VCOM in which two devices (dotted lines) are not sending data to the data logger in the bus communication. In this case, two different data outage alarms will be generated for the respective devices. These alarms will be displayed in the Alarms portlet.
Scenario in which two data outage alarms are generated
Example
Based on the settings in the screenshot below:
Monitoring begins 30 minutes after sunrise and 30 minutes before sunset.
A critical alarm is triggered if no system or inverter data is being imported for 30 minutes or more.
A high alarm is triggered if no meter data is being imported for 30 minutes or more.
A normal alarm is triggered for any other device.
Data outage alarm settings