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LoRaWAN Smart Building COMFORT - Guide utilisateur / User guide version V2.1.1
2.3.1.01
Periodic sending with or without history logs
The device allows the measurement and the periodic sending of the sensor values according to the following diagram:
The device makes it possible to record the temperature and the humidity at a certain frequency, to store this information and then to send it
periodically.
FR
Product in standby
Period
EN
of acquisition
reached?
Measure temperature
& humidity
Number
of readings
reached
?
Backup
Number of
backups
reached?
Send frame 0x4C
The parameters associated with this operating mode are:
•
•
•
E.g.:
No
Register Value
Yes
S321
S320
S301
No
S330
Yes
S340
In this example:
• The device takes temperature and humidity every 3 hours and saves the information
• The device will make 8 backups and send them once a day
• The device is in pure periodic sending mode since the alarms have been disabled.
No
ADVICE FROM ADEUNIS: By default, the device is set to read every hour (S321 = 1800).
For pure periodic sending it is advisable to set the acquisition period to the desired back-
up period in order to gain autonomy (here 5400 corresponding to 3 hours).
Yes
Be careful about backup and sending values that will also depend on the network used
and its bandwidth.
Note: for a transmission without history, it is sufficient to set the register 301 (transmis-
sion period) to 1 so the device will send a frame to each backup.
Period of acquisition (S321)
Backup period (S320)
Period of transmission(S301)
Value
Result
encoding
1 reading every 3 hours 5400 * 2sec
Decimal
5400
= 10800 sec = 3 hours
Decimal
1
1 backup at each reading
Periodic mode with a period of 8 * 3
Decimal
8
hours = 24 hours
Decimal
0
Temperature alarm off
Decimal
0
Humidity alarm off
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