Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
Sigfox Smart Building COMFORT - Guide utilisateur / User guide version V1.0.1
4. DESCRIPTION OF FRAMES
4.1. Uplink frames
All upstream frames of the product to the network (uplink) always have a size of 11 bytes.
4.1.1 Fixed byte
The first two bytes of the frame systematically indicate the frame code and status as shown below:
0
1
Code
Status
4.1.1.01
Byte code
This byte contains the frame code to make it easier for the information system to decode the frame.
4.1.1.02
Status byte
The Status byte is broken down as follows:
Alarms Status
Bit 7
No error
Configuration
successful
Low battery
Hardware error
Configuration
inconsistency
Field details:
•
Frame counter: it increments on each broadcast and allows you to quickly see if a frame has been lost. It counts from 0 to 7 before
looping back.
•
Hardware error: this bit is set when a hardware error has occurred, for example an EEPROM write problem, a reading problem on the
ADC ... The device must be returned to After-Sales Service
•
Low battery: 1 bit if low battery, otherwise 0.
•
Set up successful: bit set to 1 if a configuration was performed during the last downlink, otherwise 0. This bit returns to 0 from the next
frame.
•
Configuration inconsistency: readings lost in periodic mode because the size of the data available in the frame does not allow it to send
all the requested values in the configuration of the history.
E.g.:
A value of the status byte equal to 0xA3 (= 10100011 in binary) gives:
• Bit 7 to 5 = 101 = 0x05 i.e. a frame counter at 5
• Bit 4 to 0 = 00011 in binary i.e. a low-battery alarm and the validation of the configuration
2
3
4
Bit 6
Bit 5
Frame counter
0x00 à 0x07
DISTRIBUTED BY TEXIM EUROPE
5
6
7
PAYLOAD
Bit 4
Bit 3
Reserved
Configura-
Hardware
tion inconsis-
tency
X
0
X
0
X
0
X
0
X
1
8
9
Bit 2
Bit 1
Low battery
Config-
error
uration
successful
0
0
0
0
0
1
1
0
0
0
Page
FR
10
EN
Bit 0
0
1
0
0
0
69
of 85
Publicité
Table des Matières
