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LoRaWAN DRY CONTACTS - Guide utilisateur / User guide version V2.0.0
4.1.3 Network configuration data frames
Following reception of a downlink frame with the code 0x02 or on switching to the operating mode (from the Park or Command Mode), the
next frame (0x20) representing the network configuration of the product is transmitted:
0
1
Code
Status
0x20
Cf Status
ADR
0x20
0xAB
0x01
Description of the frame:
•
Byte 2: activation of the Adaptive Data Rate: ON (value = 1) or OFF (value = 0)
•
Byte 3: connection mode: ABP (value = 0) or OTAA (value = 1)
In the example in grey this gives:
•
Byte 2=0x01: The Adaptive Data Rate is enabled
•
Byte 3=0x01: OTAA connection mode
4.1.4 Keep Alive frame
This frame (0x30) is only issued when the different digital outputs are configured in the event mode or in output and at the frequency defined
by register 300.
0
1
Code
Status
0x30
Cf Status
0x30
0xAB
As the example shows it only contains the value of the status byte.
4.1.5 Reply frame to a register value request in a downlink frame
Following reception of a downlink frame with the code 0x40, the frame 0x31 is transmitted.
It contains all the values of the registers requested in the downlinl frame 0x40.
•
Frame (0x40) sent to the product (downlink) :
0
1
Code
0x40
CONFID1
CONFID2
The CONFIDX (8bits) fields represent the indices of the registers to be sent. The corresponding register is 300 + CONFIDX value.
•
Response frame (0x31) from the product:
0
1
Code
Status
0x31
Cf. Status
VALUE1
In this example: CONFID1 is a 2-byte register, CONFID2 a 1-byte register and CONFID3 a 2-byte register.
If an error is detected in the request, the returned 0x31 frame will be empty.
2
3
4
MODE
X
0x01
2
3
4
X
X
X
2
3
4
PAYLOAD
CONFID3
X
2
3
4
PAYLOAD
VALUE1
VALUE2
5
6
7
PAYLOAD
X
X
X
5
6
7
PAYLOAD
X
X
X
5
...
n
X
X
CONFIDn
5
...
11
VALUE3
VALUE3
X
8
9
10
X
X
X
8
9
10
X
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