6
Transfer protocol
Weather Station P04/3-RS485
• Version: 09.06.2022 • Errors excepted. Subject to technical changes.
4.2. Protocol P04/3-RS485-CET
47
0 / 1
Longitude in °, hundreds digit
48
0 … 9
Longitude in °, tens digit
49
0 … 9
Longitude in °, units digit
50
.
Longitude in °, decimal point
51
0 … 9
Longitude in °, tenths digit
52
N / S
Latitude in ° (N = north, S = south)
53
0 … 9
Latitude in °, tens digit
54
0 … 9
Latitude in °, units digit
55
.
Latitude in °, decimal point
56
0 … 9
Latitude in °, tenths digit
57
0 … 9
Checksum thousands digit
58
0 … 9
Checksum hundreds digit
59
0 … 9
Checksum tens digit
60
0 … 9
Checksum units digit
61
0x03
end identifier
Byte No
Char
Description
1
W
Start of string
2
+ / -
Outdoor temperature in °C, sign
3
0 … 9
Outdoor temperature in °C, tens digit
4
0 … 9
Outdoor temperature in °C, units digit
5
.
Outdoor temperature in °C, decimal point
6
0 … 9
Outdoor temperature in °C, tenths digit
7
0 … 9
Sun south in kLux, tens digit
8
0 … 9
Sun south in kLux, units digit
9
0 … 9
Sun west in kLux, tens digit
10
0 … 9
Sun west in kLux, units digit
11
0 … 9
Sun east in kLux, tens digit
12
0 … 9
Sun east in kLux, units digit
13
J / N
Lux twilight indication
14
0 … 9
Daylight in Lux, hundreds digit
15
0 … 9
Daylight in Lux, tens digit
16
0 … 9
Daylight in Lux, units digit
17
0 … 9
Wind in m/s, tens digit
18
0 … 9
Wind in m/s, units digit
19
.
Wind in m/s, decimal point
20
0 … 9
Wind in m/s, tenths digit
21
J / N
Rain indication
22
? / 1 … 7
CET weekday (1 = mondy ... 7 = sunday | ? = UTC not OK)
Byte No
Char
Description