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ATIM_ACW-TCR_UG_EN_V1.0
Downlink
This functionality is available on ACW-TCR fulfilling the following conditions:
Application software
Radio firmware
SIGFOX version
V0.0.1
V5.9.3.2
LoRaWAN version
V0.0.1
V5.1.1
The operation of the Downlink is explained in the document ATIM_ACW-DLConfig_UG_EN_v1.4, relating to version
V1.2.0 of the ATIM Downlink Protocol (see this document for all parameters and commands common to all products).
The parameters specific to ACW-TCR are as follows:
a.
Configuration of the frame parameters (sending period, number of samples, etc.)
Parameter code (Byte 1)
Parameter value (Byte 2)
Parameter value (Byte 3)
Parameter value (Byte 4)
0x94
0b00YY0ZZZ
0xYY
0xZZ
For byte 2, the two bits YY correspond to the history depth (max = 3) and the three bits ZZZ correspond to the number
of samples per frame (max = 7)
Bytes 3 and 4 correspond to the period for sending a frame (= 0xYYZZ) ranging from 1 minute to 255 hours (15,300
minutes).
Example
: Byte 2 = 0x13
4 samples per frame + addition of the four samples sent to the previous frame.
Byte 3 = 0x02 and byte 4 = 0x54
Tx period = 0x0254 = 596 minutes
b.
Virtual probe configuration
Parameter code(Byte 1)
Parameter value (Byte 2)
0x1B
[0x02 .. 0x0A] :
Number of values from physical probe
considered for the averaging.
Example: Byte2 = 5. If inertial coefficient is equal to 5, the virtual probe value will be the average of the last 5 physical
probe’s measurements.
