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adeunis
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Manage & optimize your assets & services
283, rue louis Néel 38920 CROLLES, France
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Decoding example:
Offset
(in
byte)
Data
Description
0
0x47
Frame code
1
0xA0
Frame counter: 5
Bit1@0: Low Bat not detected
2 - 3
0x2904
= 10,500 pulses per hour
4 - 5
0x206C
= 8,300 pulses per hour
1.5.6 Periodic frame with historization (0x5A / 0x5B)
These frames (0x5A et 0x5B) are sent, if the corresponding channels are activated (S320), at the period defined by
registers S321 x S301.
Maximum number of samples per frame:
•
LoRaWAN EU868:
23 index samples
•
Sigfox:
4 index samples
•
LoRaWAN US915 / AS923:
3 index samples
Offset
(in
byte)
Data
Description
0
0x5A / 0x5B
Frame code
Channel A: 0x5A
Channel B: 0x5B
1
Status
Status byte
2 - 5
Index at t0
WARNING: if max capacity in the frame is
reached the warning bit appeared in
status byte. In this case, the product will send the
most recent samples at the expense of the oldest
ones that will be lost.
6 - 7
Variation of the index
Between t0 and t-1
8 - 9
Variation of the index
Between t-1 and t-2
…
Decoding example (for 2 samples):
Offset
(in byte)
Data
Description
0
0x5A
this frame is for channel A
1
0x82
Frame counter: 4
Bit1@1: Low Bat detected
2-5
0x00015C4F
89 167 impulses at t0
4-5
0xE6F3
59 123 impulses of difference between t0 and t-1