Hello,
I have many FMB120 devices with a single dallas 18B20 temperature connected. When the device is in normal mode, the AVL data is transmitted regulary, and I can see the temperature value.
When the device go in sleep mode (ON LINE SLEEP), the device is configured to send a record every Hour, but in this case, the AVL event is missing and there is not temperature value.
I Have set in FMB configurator:
Dallas Temperature 1:
- Priority: High
- Low level: 0
- High level: 0
- Event only: no
- Operand: Monitoring
- Avg cons: 0
If can help, I have seen that when FMB120 is in normal mode, the voltage of 1-wire power is 5V. When device go in sleep mode (also when it wake up for hourly transmission) the voltage is 1.2V, that is non sufficient for to power up the 18B20 sensor.
My question is: Is normal that in sleep mode the device doesn't record any temperature value ?
If I use it for to monitoring a remote place (such a truck with frigo cell, for example) I cannot use the sleep mode ?
Thank you.