The settings of the device can be updated with the downlink message
• The device requests new settings every 50 messages
You must be very careful when you update the settings
• The settings a
ff
ect both the subscription and the battery life of the device
The downlink message is optional
If the downlink message is not sent, the device continues with the current
settings
By default, the device measures and transmits every 30 minutes
The measurement and transmission intervals can be adjusted with the settings
• The device transmits if the carbon dioxide level has exceeded the threshold or
the temperature or the humidity have changed more than the threshold after
the previous transmission
Check that the new settings are valid before applying them
• The measurement interval cannot be longer than the transmission interval
• The transmission interval must be multiple of the measurement interval
If the new settings are not valid, the device continues with the current settings
Downlink
11
BYTE
BIT
TYPE
DESCRIPTION
0
0-5
Reserved, set to 0
0
6
Boolean
Active power control. 1= On, 0 = O
ff
0
7
Boolean
DL Recon
fi
gure enable 1= TRUE, 0 = FALSE
1
0-7
Uint8
Update interval. 5 min * (n+2)
→
10min … ~24h.
Refer to Appendix 1.
2-7
all
Reserved, set to 0
Downlink: Payload description
