Information Frame On Configuration Of Digital Input(S)/Output(S); Keep Alive; Periodic Data Frame Of The Pressure Delta - ADEUNIS ARF8283A Guide Utilisateur

LoRaWAN DELTA P - Guide utilisateur / User guide version V1.0.0

4.1.4 Information frame on configuration of Digital Input(s)/Output(s)

When switching to operating mode (PARK or CONTROL output mode), the following frame (0x1F) representing the configuration of the digital
inputs/outputs is transmitted:
0 1
Code Status
FR
0x1F Cf Status
0x1F 0xA0
Its size is 4 bytes.
Description of the frame:
EN
Bytes 2: register 380, configuration of digital input/output 1
Bytes 3 and 4: register 381, threshold of the alarm of digital input/output 1
Byte 5: register 382, configuration of digital input/output 2
Bytes 6 and 7: S383 register, threshold of the alarm of digital input/output 2
In the example in grey, this results in:
Byte 2 = 0x41: digital I/Os 1 is activated on Event ON with 100 ms of guard period
Bytes 3 and 4 = 0x0001: 1 in decimal, so a frame sending to each event
Byte 5 = 0x00 : digital I/Os 2 is disabled
Byte 6 and 7 = 0x0001: 1 in decimal, here digital input 2 is disabled therefore setting is void

4.1.5 Keep alive

This frame (0x30) is transmitted at the frequency defined by the register 300 only if no periodic data is defined or in alarm mode on a threshold
overflow (S301 = 0).
0 1
Code Status
0x30 Cf Status
0x30 0xA3
Its size is 2 bytes. It contains only the code byte (0x30) and the status byte.

4.1.6 Periodic data frame of the pressure delta

This frame (0x53) is sent according to the interval chosen by the user (period = S321xS320xS301) and contains the periodic data of the obser-
ved pressure delta.
0 1
Code PAYLOAD
0x53 Cf Status
0x53 0xA3
NOTE: if S301>24, the warning bit will appear in the status byte. In this case, the frame will send the most recent readings at the expense of the
oldest readings that will potentially be lost.
Description of the frame:
Byte 1: Status byte
Bytes 2 and 3: Signed value of the pressure delta measured at t0
Bytes 3 and 4: Signed value of the pressure delta measured at t-1
...
Bytes 47 and 48: Signed value of the pressure delta measured at t-24
2 3-4 5
PAYLOAD
S380 S381 S382
0x41 0x0001 0x00
2 - 3 4 - 5 6 - 7
Pressure Pressure Pressure
delta at t0 delta at t-1 delta at t-2
0x012C 0x0140 0x0190
6-7
S383
0x0001
8 - 9 10 - 11
PAYLOAD
Pressure Pressure
delta at t-3 delta at t-4
0x012E ..
.... 45 - 46 47 - 48
... Pressure Pressure
delta at t-23 delta at t-24
.. ..
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