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sigfox RC2 Pulse - Guide utilisateur / User guide version V1.0.0
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4.1.7 Alarm frame
This frame (0x47) is sent if the measured flow of one of the channels exceeds the configured threshold for this channel (registers S326 and S327).
0
1
2 to 3
4 to 5
Code
Status
PAYLOAD
0x47
Cf Status
Measured flow - channel A
Measured flow - channel B
0x47
0xA3
0x2904
0x206C
Its size is of 6 bytes.
Description of the frame :
• Bytes 2 to 3: measured flow on channel A when detecting the exceeding of flow, in pulses per hour.
• Bytes 4 to 5: measured flow on channel B when detecting the exceeding of flow, in pulses per hour.
In the example in grey this gives:
• Bytes 2 to 3: measured flow on channel A when detecting the exceeding of flow, in pulses per hour = 0x2904 so 10,500 pulses per hour
• Bytes 4 to 5: measured flow on channel B when detecting the exceeding of flow, in pulses per hour = 0x206C so 8,300 pulses per hour
4.1.8 Periodic frame with 1 hour-history
This frame (0x48) is sent every hour if the feature is activated in register S321.
Frame 1/4 :
0
1
2
3 to 6
7 to 10
Code
Status
PAYLOAD…
0x48
Cf Status
Frame index
Counter - channel A
Counter - channel B
0x48
0xA3
0
0x00015C4F
0x0000F74A
Description of the frame :
• Byte 2: frame index: index of this frame in a multi-message sequence (always null in this configuration).
• Bytes 3 to 6 : Counter - channel A : counter value of channel A 10 minutes after transmitting the previous frame.
• Bytes 7 to 10 : Counter - channel B : counter value of channel B 10 minutes 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) = 0 (first frame)
• 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 2/4 :
0
1
2
3 to 4
5 to 6
7 to 8
9 to 10
Code
Status
PAYLOAD…
0x48
Cf Status
Frame index
Delta A0
Delta B0
Delta A1
Delta B1
0x48
0xA3
1
0x0012
0x0020
0x0007
0x0010
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 10 to 20 minutes after transmitting the previous
frame.
• Bytes 5 to 6 : Delta B0 : index variation of channel B during the time interval between 10 to 20 minutes after transmitting the previous
frame.
• Bytes 7 to 8 : Delta A1 : index variation of channel A during the time interval between 20 to 30 minutes after transmitting the previous
frame.
• Bytes 9 to 10 : Delta B1 : index variation of channel B during the time interval between 20 to 30 minutes after transmitting the previous
frame.
