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IF482 – Telegram
For synchronisation via the serial MB IF482 telegram (setting IF482, Chapter 10.1) the
following parameters apply:
Protocol:
MB IF482 telegram; format see below
Interface :
RS232 or RS422
Communication parameters:
9600 Baud, 7 data bits, 1 stop bit, even parity
Synchronisation:
Telegram ends at the beginning of the second
specified in the telegram
Cycle: 1
second
Format IF482:
Byte: Meaning:
Character: HEX
Code:
1 Start
character
O
4F
2 Status
A: System
synchronized
M: System not synchronized / loss of time > 12 h
A / M
41 / 4D
3 Season
U: UTC
W: Winter
(standard
time)
S:
Summer (daylight saving time)
U / W / S
55 / 57 / 53
4 Year
tens
0..9
30..39
5 Year
units
0..9
30..39
6
Month tens
0 / 1
30 / 31
7 Month
units
0..9
30..39
8 Day
tens
0..3
30..33
9 Day
units
0..9
30..39
10 Weekday
(Mo..Su)
1..7
31..37
11 Hours
tens
0..2
30..32
12 Hours
units
0..9
30..39
13 Minutes
tens
0..5
30..35
14 Minutes
units
0..9
30..39
15 Seconds
tens
0..5
30..35
16 Seconds
units
0..9
30..39
17
Telegram end character
<CR>
0D
