Transmission Of A Daily Keep Alive Frame - ADEUNIS sigfox ANALOG Guide Utilisateur

sigfox ANALOG - Guide utilisateur / User guide version V2.0.0
Eg:
Register
S301
S320
S322
S321
FR
S323
EN
* Waiting* period (or debounce time): minimum time for taking into account a change of state. For example if this
period is 10ms, all pulses (high or low level) whose duration is less than 10ms will not be taken into account. This
technique prevents rebounce on a change of state.
2.2.4

Transmission of a daily Keep Alive frame

In the event mode (threshold or digital), it is possible that the product would never send data frames. So to be
sure that it is working properly a Keep Alive frame is transmitted regularly according to the following diagram:
In periodic mode there is no Keep Alive frame transmission.
The settings associated with this mode of operation are:
• The setting of the period of transmission of the Keep Alive frame (once per hour to once per day) (register 300).
A complete list of the registers can be found in paragraph 3.4.
E.g.:
Register
S300
Value encoding
Decimal
Hexadecimal
Hexadecimal
Hexadecimal
Hexadecimal
Product in standby
Period
reached?
Send frame 0x30
Value encoding
Decimal
Value Result
0 Event mode
0x02 Channel A configured for a sensor 4-20mA
0x01 Channel B configured for a sensor 0-10V
0x1C Channel A:
No threshold detection
Event detection on digital input on rising and
falling edges
• Waiting* period of 10ms
0x18 Channel B:
No threshold detection
Event detection on digital input on rising
edge only
• Waiting* period of 10ms
No
Yes
Value Result
72 The Keep Alive frame is sent every:
72x10=720min i.e. 12h (or twice per day)
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