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WMBUS Pulse - Guide utilisateur / User guide version V2.2.0
The settings associated with this mode of operation are:
•
Enabling and Configuring inputs (register 320)
•
History configuration (register S321)
•
Anti-bounce timer period (register S322)
•
Flow calculation period (register S325)
•
Alarm thresholds (registers S326 and S327)
A complete list of the registers can be found in paragraph 3.4.
FR
Example :
Register
Value encoding
S320
Hexadecimal
EN
S321
Hexadecimal
S322
Hexadecimal
S325
Decimal
S326
Decimal
S327
Decimal
2.2.4 Tamper detection
The product allows detection of state change on the tamper input of each channel (rising edge detected on the input normally held to ground).
The product wakes up regularly (according to the periods defined in registers S332 and S334) and checks the status of the tamper input of each
of the channels having active fraud detection.
The tamper alarm is stored if there are several successive detections (configurable in registers S333 and S335) and transmitted within the next
daily frame.
The alarm is automatically deactivated after the daily frame is sent.
The settings associated with this mode of operation are:
•
Enabling and Configuring inputs (register 320)
•
Fraud detection period 1 (register 332)
•
Threshold for fraud detection 1 (register S333)
•
Fraud detection period 2 (register 334)
•
Threshold for fraud detection 2 (register S335)
A complete list of the registers can be found in paragraph 3.4.
Eg:
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
Anti-bounce :
•
Channel A = 500ms
•
Channel B = 100ms
60
Flow calculation period (channels A and B) = 60min
10 000
Flow alarm threshold (channel A) = 10,000 pulses per hour
30 000
Flow alarm threshold (channel B) = 30,000 pulses per hour
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