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When the Input mode is set to analog + alarming, an event is sent if the value is equal or 
exceeds the high limit or is equal or gets lower than the low limit. The state of the input is 
queried in a frequency defined in the period box. 
The subscription of events can be used by configuring the correct settings with Nokia 30 
Configurator software by selecting menu option Remote I/O Control -> General (see Figure 
4).  
 
 
Figure 4. Input configuration for receiving events