Pressure Delta Alarm Frame; Periodic Data Frame Analog Input 0-10 V - ADEUNIS ARF8283A Guide Utilisateur

LoRaWAN DELTA P - Guide utilisateur / User guide version V1.0.0
In the example in grey, this results in:
- Frame code = 0x53, periodic data frame
- Status = 0xA3, meaning a frame counter at 5, a low battery alarm and configuration validation.
- Pressure delta at t0 = 0x012C, either 300 in decimal, or a pressure delta measured at 300 Pa
- Pressure delta at t-1 = 0x0140, either 320 in decimal, or a pressure delta measured at 320 Pa
- Pressure delta at t-2 = 0x0190, either 400 in decimal, or a pressure delta measured at 400 Pa
- Pressure delta at t-3 = 0x012E, either 302 in decimal, or a pressure delta measured at 302 Pa

4.1.7 Pressure delta alarm frame

This frame (0x54) is sent when a threshold defined by the configuration of register 330 for the pressure delta alarm is exceeded.
0 1
Code Status
0x54 Cf Status
0x54 0xA3
Its size is 5 bytes.
Description of the frame :
• Byte 2: Pressure delta alarm status
• Bytes 3 and 4: Signed value of the measured pressure delta
In the example in grey, this results in:
• Byte 2 = 0x01, the pressure delta alarm is active (threshold exceeded)
• Bytes 3 and 4 = 0x0190, i.e. 400 in decimal, the measured pressure delta is at 400 Pa.

4.1.8 Periodic data frame analog input 0-10 V

This frame (0x55) is sent according to the period chosen by the user (period = S323xS322xS324) and contains the periodic data of the 0-10 V
analog input.
0 1
Code PAYLOAD
0x55 Cf Status Measure-
ment 0-10
0x55 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 instead of the oldest
readings, which potentially may be lost.
For example, the following frame 55A32710251C2580802710 (in hexadecimal) means:
- Frame code = 0x55, periodic data frame
- Status = 0xA3, meaning a frame counter at 5, a low battery alarm and configuration validation.
- Measurement 0-10V at t0 = 0x2710, either 10000 in decimal, or 10 000 mV.
- Measurement 0-10V at t-1 = 0x251C, or 9500 in decimal, or 9 500 mV.
- Measurement 0-10V to t-2 = 0x02580, or 9600 in decimal, or 9 600 mV.
- Measurement 0-10V to t-3 = 0x2710, either 10000 in decimal, or 10 000 mV.
53A3012C01400190012E (in hexadecimal) :
2 3 - 4
PAYLOAD
Alarm status Pressure
delta
0x01 0x0190
2 - 3 4 - 5 6 - 7
Measure- Measure-
ment 0-10 ment 0-10
V at t0 V at t-1 V at t-2
0x2710 0x251C 0x2580
8 - 9 10 - 11
PAYLOAD
Measure- Measure-
ment 0-10 ment 0-10
V at t-3 V at t-4
0x2710 ..
.... 45 - 46 47 - 48
... Measure- Measure-
ment 0-10 ment 0-10
V at t-23 V at t-24
... .. ..
Page
FR
EN
77 of 88