Dimensions
VA 520 EN V1.21
page
15
o
45
9.2
Connection diagrams
9.2.1 Modbus
Connector plug A (M12 - A-coding)
3
4
5
1
2
+ VB
- VB
Blau / Blue
Weiss / White
Schwarz / Black
Modbus (B)
Modbus (A)
Braun / Brown
Remark
:
If the sensor is placed at the end of the Modbus system a termination is required. The sensors have an
internal switchable termination, therefore the 6 fastening screws from the lid are to be released and set
the internal DIP Switch to “On”. It must be ensured that the connection plugs are still plugged and the
gasket is installed correctly.
Alternatively, a 120R resistor can be installed in the plug between pin 2 and pin 4
.
9.2.2 Analogue output (4-20mA, Pulse)
Connector plug A (M12 A-coding)
Connector plug B (M12 A-coding)
3
4
5
1
2
+ VB
- VB
4 … 20mA
+
-
Grau / Grey
Blau / Blue
Braun / Brown
4 … 20mA
+
-
3
4
5
1
2
Grau / Grey
Blau / Blue
Weiss / White
Schwarz / Black
Braun / Brown
P
u
ls
e
CH1
P
u
ls
e
CH2
Channel 2
Channel 1
9.2.3 MBus
Connector plug A (M12 A-coding)
Connector plug B (M12 A-coding)
3
4
5
1
2
Blau / Blue
Grau / Grey
Schwarz / Black
MBus
MBus
3
4
5
1
2
+ VB
- VB
Blau / Blue
Braun / Brown
