Tamper Detection - ADEUNIS NB-IoT PULSE Guide Utilisateur

NB-IoT PULSE - Guide utilisateur / User guide version V1.0.0
The settings associated with this mode of operation are:
• Enabling and Configuring inputs (register 320)
• Anti-bounce timer period (register S322)
• Flow calculation period (register S325)
• Alarm thresholds (registers S326 and S327)
Example :
Register Value encoding
FR
S320 Hexadecimal
EN
S322 Hexadecimal
S325 Decimal
S326 Decimal
S327 Decimal
2.2.5

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)
Value Result
0x39 Channel A :
• Activated
• Meter other than gas
• Tamper input activated
Channel B :
• Activated
• Gas meter
• Tamper input disabled
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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