Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
sigfox ANALOG - Guide utilisateur / User guide version V2.0.0
4.1.7
Summary of the conditions of the transmission of the uplink frames
The table below summarizes the conditions of the transmission of the different uplink frames:
Code
0x10
Product configuration data frames
0x11
0x12
FR
0x13
0x14
0x20
Frames of information on the network
configuration
0x30
Keep Alive frame
EN
0x31
Reply frame to a register value request in
a downlink frame
0x42
Data Frame
4.2. Downlink frames
SIGFOX technology allows up to 4 downlink messages to be transmitted (from the network to the product) per day
depending on the subscription.
A downlink message is in fact an acknowledgement of receipt of an uplink frame with a request for acknowledge-
ment. This means that, to receive a message on the product, an uplink frame (from the product to the network)
must indicate an acknowledgement wait.
This acknowledgement downlink frame is an 8 byte message defined for the adeunis® product in the following two
paragraphs.
Hence the product sends an uplink frame with the ACK field enabled, it then returns to standby for twenty seconds
before opening a reception window (RX window) for a maximum of 30 seconds, in accordance with the diagram
below:
The configuration of the sending policy of the acknowledgement request in the adeunis® product differs according
to whether the product is in periodic or event mode:
• In periodic mode: the transmission period for the event counters (register 301) allows us to know the number of
uplink frames that the product will send per day. This number is divided by the number of downlink frames per day
(register 307) and allows us to set the schedule of acknowledgement requests so that the network can transmit its
downlink frames.
• In the event mode: the only known periodicity is that of the Keep Alive frame, defined by register 300, because
it is possible that no event occurs in 24 hours. The acknowledgement requests and hence the possibilities for the
network to transmit this data are determined by the periodicity of the Keep Alive frame (register 300).
E.g.:
Description
• Start-up of the product
• Exit from the configuration mode (AT Command)
• Reception of a downlink frame 0x01
• Periodically if the inputs are disabled (period defined by the register 300)
• Start-up of the product
• Exit from the configuration mode (AT Command)
• Reception of a downlink frame 0x02
• Periodically in «event» mode
• Reception of a downlink frame 0x40
• Start-up of the product
• Event on an digital input configured in event mode
• Passing a threshold (event mode)
• The end of the period on input configured in periodic mode
Sending conditions
Page
72
of 86
Publicité
Table des Matières
