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LoRaWAN 863-870 PULSE IP68 - Guide utilisateur / User guide V4.0.0
2.4.3
Periodic transmission with redundancy
The product enables to ad redundancy in the frame with historisation (cf scheme here under). Thanks
to redundancy the product will memorize a certain number of data and send them again in the next
frame.
The parameters associated with this mode of operation are:
• Historisation period (register 321) and sending frequency (register 301)
•
Enabling and Configuring inputs (register 320)
• Number of data to be repeated (register 340).
Example with redundancy:
Register
Encoding
Value
Result
S320
Hexadecimal
0x39
Channel A :
• Activated
•
Meter different than gas
•
Tamper input activated
Channel B :
• Activated
•
Gas meter
•
Tamper input deactivated
S301
Decimal
2
Sending every 4 historisations (saving)
S321
Decimal
1800
Historisation of the channel A and chan-
nel B index every hours (1800x2seconds
= 60 minutes)
S322
Hexadecimal
0x57
Anti-rebound :
•
Channel A = 500ms
•
Channel B = 100ms
S340
Decimal
4
4 redundant data per frame
In this example:
• 1 historisation of the index each hours (1800x2seconds = 60 minutes)
• 1 sending every 2 savings so every 2 hours
• The 2 channel of the product are activated so the 2 periodic frame are sent (0x5A et 0x5B)
• When it is possible, the product will send for each channel the 2 recent index and the last 4 index
memorized
Time
Historisation/
Saving
Frame 1
Frame 2
Frame 3
Frame 4
Frame 5
Frame 6
Frame 7
1h 2h 3h 4h 5h 6h 7h 8h 9h 10h 11h 12h 13h 14h 15h
New index
Index memorized