Adeunis RF SIGFOX SENSORS, User Manual

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SIGFOX SENSORS - Mode d’emploi / User guide version V2.1.1
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4. RADIO FRAMES
The SIGFOX SENSORS transmits raw information from meters using the SIGFOX network
• A periodic data frame for the analog measure
• A event data frame for the digital input
• A keep-alive data frame (only in dry contact using)
This section contains information you can use to decode the frame as well as the location in the frame of information concerning the meter or
meters associated with the SIGFOX SENSORS.
Note
: this chapter describes the elements dedicated to the SIGFOX SENSORS.
4.1. Frame format
• SIGFOX EUROPE
• RF data rate : 100bps
• Uplink payload : up to 12 bytes
• Downlink payload : up to 8 bytes
4.1.1 Uplink - Analog Input
Data Frame timing for a analog product
0x03
0x01
0x01
UPLINK
Product start
(with magnet)
Periodicity
0x03
New JOIN demand
(with magnet)
0x01
• Code 0x01 : Sensor measure datas
• Code 0x03 : Device configuration
Payload uplink up to 12 bytes, data format : Little endian, low significant byte first.
Unsignificant bytes are not transmitted (X)
0 1 2 3 4 5 6 7 8 9 10 11
Code Status PAYLOAD
0x01 Cf Status
Channel 1
Type
Measure sensor 1 (LSB First)
Channel 2
Type
Measure sensor 2 (LSB first) X X
0x03 Cf Status
Device
Type
Transmit period
Channel
On/Off
Channel 1
Type
Channel
2 Type
NA
(0x00)
Switch
Value
X X
Numerical value conversion
For a 4-20mA sensor :
Value = NumericalValue * 2.048/(2^20*99.8)
For a 0-10V sensor : Value = NumericalValue * (2.048*337,3)/(2^20*67.3)
Example NumericalValue :
Read value : 32 2A 00 00
Hexadecimal value : 00 00 2A 32
NumericalValue = 10 802
0x01
0x01
Starting Frame
Data Frame