Det er vel meningsløs å "polle" batteridrevne enheter:
"Polling interval
The time between the particular "polls" of the devices. A "poll" is a requirement from the Z-Wave controller for the Z-Wave device to send out information (on their status). Only those devices that are supplied from the mains have the radios switched on all the time so they can respond to this requirement anytime. But what about the battery devices? If the Z-Wave controlles asks for something while the device is still sleeping (most of the time) it cannot receive a polling requirement..."
NorthQ-måleren har vanligvis ikke mulighet til å sende data tilbake til MASTER utover en FAST BESTEMT tid (15 min. sampling).
Fra Manualen:
"The Power Reader is a metering device capable of counting pulses from any electricity or gas meters. The device stores timestamped consumption in its internal memory every 15 minutes..."
"NOTE:
Power Readers with firmware version up to 3.24 and Gas Readers with firmware up to 3.30 allow any value to be set through this command class, however they will only store 1 accumulated value every 15 minutes, therefore the recommended value is 900 seconds.
Power Readers with firmware version equal or above 2.29 and Gas Readers with firmware version equal or above 3.34 will only allow the following intervals to be set: 60, 300, 600, 900, 1800 and 3600 seconds. If a different value is sent to the device, it will automatically set the default value (900 seconds). The readers store one accumulated value per wake-up interval."