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LoRaWAN AS-923 Pulse - Guide utilisateur / User guide version V1.0.0
4.1.9 Periodic frame with 24 hours-history
Thirteen frames (0x48) are sent every 24 hours if the feature is activated in register S321.
Frame 1/3 :
0
1
Code
Status
0x48
Cf Status
0x48
0xA3
Description of the frame :
•
Byte 2: frame index: index of this frame in a multi-message sequence.
•
Bytes 3 to 6 : Counter - channel A : counter value of channel A 1 hour after transmitting the previous frame.
•
Bytes 7 to 10 : Counter - channel B : counter value of channel B 1 hour after transmitting the previous frame.
In the example in grey this gives:
•
Byte 2: frame index: index of this frame in a multi-message sequence (here set to 0 for the first frame) = 0
•
Bytes 3 to 6 : Counter - channel A : counter value of channel A 10 minutes after transmitting the previous frame = 0x00015C4F so 89,167 pulses
•
Bytes 7 to 10 : Counter - channel B : counter value of channel B 10 minutes after transmitting the previous frame = 0x0000F74A so 63,306 pulses
Frame 2/13 :
0
1
Code
Status
0x48
Cf Status
0x48
0xA3
Description of the frame :
•
Byte 2: frame index: index of this frame in a multi-message sequence.
•
Bytes 3 to 4 : Delta A0 : index variation of channel A during the time interval between 1 to 2 hours after transmitting the previous frame.
•
Bytes 5 to 6 : Delta B0 : index variation of channel B during the time interval between 1 to 2 hours after transmitting the previous frame.
•
Bytes 7 to 8 : Delta A1 : index variation of channel A during the time interval between 2 to 3 hours after transmitting the previous frame.
•
Bytes 9 to 10 : Delta B1 : index variation of channel B during the time interval between 2 to 3 hours after transmitting the previous frame.
In the example in grey this gives:
•
Byte 2: frame index: index of this frame in a multi-message sequence (always null in this configuration) = 1 (second frame)
•
Bytes 3 to 4 : Delta A0 : index variation of channel A during the time interval between 1 to 2 hours after transmitting the previous frame =
0x0012 so 18 additional pulses
•
Bytes 5 to 6 : Delta B0 : index variation of channel B during the time interval between 1 to 2 hours after transmitting the previous frame =
0x0020 so 32 additional pulses
•
Bytes 7 to 8 : Delta A1 : index variation of channel A during the time interval between 2 to 3 hours after transmitting the previous frame =
0x0007 so 7 additional pulses
•
Bytes 9 to 10 : Delta B1 : index variation of channel B during the time interval between 2 to 3 hours after transmitting the previous frame =
0x0010 so 16 additional pulses
Frame 3/13 :
0
1
Code
Status
0x48
Cf Status
0x48
0xA3
Description of the frame :
•
Byte 2: frame index: index of this frame in a multi-message sequence
•
Bytes 3 to 4 : Delta A2 : index variation of channel A during the time interval between 3 to 4 hours after transmitting the previous frame.
•
Bytes 5 to 6 : Delta B2 : index variation of channel B during the time interval between 3 to 4 hours after transmitting the previous frame.
•
...
In the example in grey this gives:
•
Byte 2: frame index: index of this frame in a multi-message sequence (always null in this configuration) = 2 (third frame)
2
Frame index
Counter - channel A
0
2
3 to 4
PAYLOAD...
Frame index
Delta A0
1
0x0012
2
Frame index
2
3 to 6
7 to 10
PAYLOAD...
Counter - channel B
0x00015C4F
0x0000F74A
5 to 6
7 to 8
Delta B0
Delta A1
Delta B1
0x0020
0x0007
3 to 4
5 to 6
PAYLOAD
Delta A2
Delta B2
0x0100
0x00F0
9 to 10
0x0010
7 to 8
Delta A3
0x0000
FR
EN
9 to 10
Delta B3
0x00015
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