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sigfox RC1 ANALOG PWR - Guide utilisateur / User guide version V2.0.2
4.2.2
Network configuration request frame
This frame allows to inform the product via the network that it must resend the network configuration uplink frame
(0x20).
0
Code
FR
0x02
4.2.3
Specific register value request frame
This frame (0x40) allows to inform the product via the network that it must send the values of specific registers in
a uplink frame (0x31).
EN
0
Code
0x40
CONF ID1
Description of the frame:
•
Bytes 1 to N : CONF IDX (8bits): indice of the register to be sent. The corresponding register is 300 + CONF
IDX value. For example, if CONF ID1 =0x14 (so 20 in decimal), the product will send back the value of regis-
ter number 320.
The associated uplink frame has the code 0x31 (see paragraph 4.1.5).
0
Code
0x31
Status
In this example: CONF ID1 is a 2-byte register, CONF ID2 a 1-byte register and CONF ID3 a 2-byte register.
If an error is detected in the request, the returned 0x31 frame will be empty.
IMPORTANT : The user can specify several CONF IDs in his downlink frame but it is his responsibility to verify that
according to the protocol the size of the data available in a downlink frame will be large enough to contain all the
desired data. Otherwise, the application will only send the first values.
4.2.4
Frame for updating the value of specific registers
This frame (0x41) allows to change the value of requested registers.
0
Code
0x41
CONF ID1
Description of the frame :
•
Byte 1: CONF ID1 (8bits) : indice of the first register to change. The corresponding register is 300 + value of
CONF IDX. For example, if CONF ID1 = 0x14 (hexadecimal, so 20 decimal), the product will change the value
of register number 320.
•
Byte 2: value to assign to CONF ID1 : in this example, its value has a size of 1 byte
•
Byte 3: CONF ID2 (8bits) : indice of the second register to change. The corresponding register is 300 + value
of CONF IDX.
•
Bytes 4 and 5: value to assign to CONF ID2 : in this example, its value has a size of 2 bytes
•
...
The product does not return any uplink frame following the reception of a downlink frame 0x41. However, the Con-
fig bit of the status byte (see section 4.1.1.2) will be set to 1 in the next scheduled uplink frame (periodic or alarm
or keep alive frame) if all was well done.
IMPORTANT: the value 0xFF for a CONF IDX will stop the reading of the downlink frame. Only the bytes preceding
this value 0xFF will be taken into account. This mechanism can be useful when you need to work in fixed downlink
frame lengths and you do not want to use all available bytes.
1
2
X
X
1
2
CONF ID2
CONF ID3
1
2
VALUE1
1
2
CONF ID1
value
3
4
PAYLOAD
X
X
3
4
PAYLOAD
X
3
4
PAYLOAD
VALUE1
VALUE2
3
4
PAYLOAD
CONF ID2
CONF ID2
value (MSB)
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5
6
X
X
5
...
X
X
5
...
VALUE3
VALUE3
5
...
CONF ID2
...
value (LSB)
7
X
7
CONF ID7
11
X
7
CONF ID7
value
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