ADEUNIS sigfox TEMP Guide D'utilisateur page 53

sigfox TEMP- Guide utilisateur / User guide version V2.0.0
E.g.:
Registre
S301
S320
S322
S321
S323
S324
S325
S326
S327
S328
S329
S330
S331
S332
S333
In this example:
• The product compares the measurements every 12 minutes and transmits if necessary
• As the super-sampling factor is 6, there will be a measurement and a storage operation every 12/6=2 minutes
• The value sent will therefore be an average of 6 temperatures collected every 2 minutes
Caution: averaging can reduce the importance of some peaks (maximum values) if the temperature changes quickly.
Take care also over the values of the period and the super-sampling because they have an impact on the consumption of the product. In the
extreme an acquisition period of 1 minute and a super-sampling factor of 10 produces a measurement every 6 seconds.
Codage de la valeur Valeur
Décimal 0
Hexadécimal 0xD0
Hexadécimal 0x80
Hexadécimal 0x03
Hexadécimal 0x02
Décimal 300
Décimal 10
Décimal 50
Décimal 5
Décimal 400
Décimal 20
Décimal -300
Décimal 10
Décimal 12
Décimal 6
Résultat
Event mode
Identifier of the internal sensor set to 0xD
Identifier of the external sensor set to 0x8
For the internal sensor:
Detection of high and low thresholds
For the external sensor:
Detection of high thresholds only
The value of the high threshold of the internal sensor is:
300/10=30°C
The value of the hysteresis of the high threshold of the internal
sensor is: 10/10=1°C
The value of the low threshold of the internal sensor is:
50/10=5°C
The value of the hysteresis of the low threshold of the internal
sensor is: 5/10=0.5°C
The value of the high threshold of the external sensor is:
400/10=40°C
The value of the hysteresis of the high threshold of the external
sensor is: 20/10=2°C
The value of the low threshold of the external sensor is:
-300/10=-30°C
The value of the hysteresis of the low threshold of the external
sensor is: 10/10=1°C
The acquisition period is 12 minutes
The number of samples to be measured and stored between two
transmissions is 6
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