LoRaWAN US902-928 Pulse - Guide utilisateur / User guide version V1.0.0
Example :
Register
Value encoding
S320
Hexadecimal
FR
S321
Hexadecimal
S322
Hexadecimal
EN
S325
Decimal
S328
Decimal
S329
Decimal
S330
Décimal
S331
Decimal
In this example, all the periods during which the flow rate on the channel A is less than 10 pulses / hour are considered as periods of zero flow.
If the total daily number of zero flow periods is less than 3 then it is considered that there is a leak on the channel A.
2.2.7 Mode TEST
This mode allows the user to perform tests of the product more quickly by reducing the time scales of the production mode and modifying the
behaviour of the LEDs.
It is obtained by positioning register S306 at the value 2 in the COMMAND mode. Once out of the command mode, the product returns to the
previously defined application behaviour but with the following changes:
-
Register S300: the periodicity of the Keep Alive is expressed in groups of 5 minutes instead of 24 hours.
-
Register S301: the periodicity of the sending of data (periodic mode) is expressed in groups of twenty seconds instead of minutes.
Hence in test mode when register 301 = 1, the Keep Alive frame is no longer sent every 1min but every 20 seconds.
-
Register S325 : the flow calculation period (channels A and B) is expressed in twenty seconds slots instead of minutes. So in TEST
mode when the register 325 is set to 60, the flow calculation period (channels A and B) is 60x20s=1200s (so 20min) instead of 60 minutes.
-
The LEDS also have a different behaviour, allowing a visual feedback to the user in the event of transmission and reception of frames
(see paragraph 2.3 for more details).
A complete list of the registers can be found in paragraph 3.4.
E.g.:
Register
Coding the value
S306
Decimal
S300
Decimal
S301
Decimal
S325
Decimal
Value
Result
0x39
Channel A :
•
Activated
•
Meter other than gas
•
Tamper input activated
Channel B :
•
Activated
•
Gas meter
•
Tamper input disabled
0x02
Channels A and B : historical mode with backup of the counters every hour
and transmission every 24h so 24 values per counter
0x57
Debounce :
•
Channel A = 500ms
•
Channel B = 100ms
60
Flow calculation period (channels A and B) = 60min
10
Leak threshold (channel A) = 10 pulses par hour
0
Leak threshold (channel B) = 0 pulse par hour
3
Daily periods number under the leak threshold (channel A) = 3
5
Daily periods number under the leak threshold (channel B) = 5
Value
Result
2
The product is in TEST mode
--
The Keep Alive frame is sent every 5 minutes
1
Periodic mode with a period of 1x20 = 20s
60
Flow calculation period (channels A and B) is 60x20s=1200s ie 20
minutes
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