Commissioning
Addressing
2
12 | 22
Siemens
A6V11478123_en_a
Building Technologies
2019-02-01
2
Commissioning
2.1
Addressing
2.1.1
DIP switches (Climatix and other controllers)
Use DIP switches for adjustment of the Modbus address and for termination.
●
The DIP-switches have priority over register 4x0764 (Modbus address).
●
The Modbus address (register 4x0764) is valid as soon as all DIP switches are
on '0'.
●
Changes of DIP switches are effective after 5 seconds.
Modbus addressing
The DIP switches allow addresses between 1…247 (Modbus specification).
The following example shows Modbus address '3':
Modbus termination
●
The termination is done with 120 Ω + 1nF.
●
Even if the addressing is done with "On-event addressing (Climatix controllers)
13]", the termination has to be done manually.
1
2
3
4
5
6
7
8
9
1
2
1: On
0: Off
128
64
32
16
8
4
2
1
1
2
3
4
5
6
7
8
9
1
2
1: On
0: Off
128
64
32
16
8
4
2
1
1
2
3
4
5
6
7
8
9
2
1: On
0: Off
