
EN
WMBus Smart Building MOTION - Guide utilisateur / User guide version V1.0.0
57
Page
of 82
FR
Explanation of thresholds and hysteresis:
Eg.
Register
Value
encoding
Value
Result
S301
Decimal
0
Event mode (no periodicity)
S322
Decimal
1
Sensor wait time before allowing detection
again (x10 secs)
S323
Decimal
3
Presence sensor always active
S330
Decimal
100
Sending an alarm after 100 presence
detections
S331
Decimal
0
Presence sensor always active
In this example:
• The device is in event mode
• The device detects a presence and waits 10 seconds before detecting a new
one
• The device will sound an alarm if the number of detections exceeds 100
NOTE: As described in 2.1.5 it is possible to combine the periodic
mode and the alarm mode.
Détection d’une
présence
Nombre de
détections
atteint ?
Envoi trame 0x4F
OUI
Non
Est-ce la
nuit ?
Alarme activée le
jour et la nuit
Alarme activée
la nuit
OUI
Non
Produit en veille
The parameters associated with this operating mode
are:
• The transmission period (equal to zero in this use
case) (register 301).
• The acquisition period (register 321)
• The high alarm threshold for the temperature sensor
(register 331).
• The high alarm hysteresis for the temperature sensor
(register 332)
• The low alarm threshold for the temperature sensor
(register 333).
• The low alarm hysteresis for the temperature sensor
(register 334).
•The high alarm threshold for the humidity sensor
(register 341).
•The high alarm hysteresis for the humidity sensor
(register 342).
• The low alarm threshold for the humidity sensor
(register 343).
• The low alarm threshold for the humidity sensor
(register 344).
The complete list of registers can be found in paragraph 3.4.
2.1.5.03
Transmission over presence detection threshold
The product allows the transmission of an alarm frame beyond a certain number of detections defined by the user. This alarm can be enabled all
the time (day and night) or only at night.
Low threshold
High threshold -
high threshold hysteresis
Low thr
low thres-
hold hysteresis
Sensor value
High alarm enabling
High alarm disabling
Low alarm enabling
Low alarm
disabling