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AMR SENSORS- Mode d’emploi / User guide version V1.2
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5.2.2 Décodage de la trame
Type
Description
Valeur
Signification
Frame start
SOF
0xFF
Démarrage de trame
Frame size
L-Field
0x19
Longueur de champ data
Control
C-Field
0x44
SEND/NO REPLY
Manufacturer ID
M-Field
0x4606
Manufacturer ID : 0x4606 = ARF
A-Field
Serial number
0x01000000 BCD coding - read 10000000 (note: <1> refers to sensor
No. 1, if <2>, it refers to sensor No. 2)
Device version
0x03
Product version
Device type
0x19
AD Converter
Code de trame
CI-Field
0xAD
Log frame
Function code 0x02
DATA-Field
Short header
Access num-
ber
0xB5
Increased incrementally upon each frame = log number
Status
0x00
Status of the product
Signature
0x00
No encryption
0x00
Check Encryption
0x2F2F
Always 0x2F2F (for decryption check)
Historic type
0x00
Indefinite, variable value number
Primary VIF
0xFD
Second extension of VIF
Secondary VIF
0x3A
Dimensionless/no VIF
Value type
0x06
Unsigned 24 bit data
Sample rate
0x000E10
Log data rate = 3,600 s
DATA Field
Historic number
0xB5
New log - increase incrementally upon each new frame
Time Tag
0x000015
Time between the last saved data and sending of the log/
history = 21 s
Partial frame
0x00
Number of the frame to come
Nb of data blocks
0x02
Historic value
0x063CCE
ADC or On-Off value sampled 21 s ago
Historic value
0x04196B
ADC or On-Off value sampled 21 s ago + 3600 sec
RSSI
Signal reception level
BF
RSSI of the frame received: RSSI value = -125 + (x *
0.5), namely, in this example BF = 191, RSSI = -125 +
(191*0.5) = -29.5 dBm
5.2.3 Sensor value decoding
Apply the conversion formulas as explained in section 5.1.3 for each of the log values
6. Document history
User guide version
Contents
V1.2
English version
V1.1
Document released
V1.0
Document created