Radio Frames; Data Frame; Format; Identification Of The Sensor - Adeunis RF AMR SENSORS ARF8041AA Mode D'emploi

AMR SENSORS- Mode d'emploi / User guide version V1.2

5. Radio frames

The AMR Sensor transmits raw information from sensors using the Wireless M-BUS protocol.
In this chapter, you will find information enabling the Wireless M-Bus frame to be decoded, as well as the location in the information frame
concerning the sensor or sensors associated with the AMR Sensors unit.
NB: AMR Sensors does not either interpret or decode information from the sensor. Decoding into a value and/or unit is the responsibility of the
user once the radio frame is received via its receiver.
The decoding explained below, working from the following example:
• An AMR Sensors product to which a sensor is connected. The frames transmitted are data frames and log frames.

5.1. Data frame

Example: FF 0C 44 46 06 00 00 00 10 03 19 7A 01 00 00 00 2F 2F 03 FD 3A CE 3C 06 BF

5.1.1 Format

SOF L-Field C-Field M-Field
FF 0C 44 46 06

5.1.2 Identification of the sensor

An AMR Sensors product can handle two sensors. The AMR Sensors unit will therefore send a frame for each of these sensors. The sensor (1 or
2) is identified via the A-Field in the frame :
If sensor N°1
A-Field
1
03 19
00 00 00 0

5.1.3 Decoding the frame

Type
Frame start SOF
Frame size
L-Field
Control C-Field
Manufacturer ID M-Field
A-Field
00 00 00 10 03 19
If sensor N°2
A-Field
2
03 19
00 00 00 0
Description
CI-
Field
Short-Header
7A 01 00 00
Valeur Signification
0xFF Start of the frame
0x0C Data field length
0x44 SEND/NO REPLY
0x4606 BCD coding. Read 06 46 (ARF)
Data-Field
2F
00 03 FD 3A CE 3C 06
2F
RSSI
BF
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