Mark Interface+, Technical Manual

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4.2 Connection burner capacity with Modbus for G(S)+
In module
A
- Power supply 1~230V + N + PE / 50Hz
B - Connecting air heater with 2-wired bus cable.
Potential free entries
F - Reset
Potential free exits
G - Malfunction (NO) 230V or 24V*
H - Operation (NO) 230V or 24V*
Communication
I - RS 485 Modbus
* Only 1 voltage may be used: 230V or 24V.
** The switch must always be switched to the right.
8
H
G
F
A
B
17
20
L
N
PE
27
28
26
25
12
11
8
7
6
5
4
3
3
4
25 26 27 28 29 30
L N PE
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14 16
17
18
19 20
21
22
24
23
I
9
10
15
16 A-
B+
S4(ON)
S4(ON)**