9 Sensor installation
M12 pin assignment
Output Type Connector Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
4 ... 20 mA plus pulse
(P/N: A1410)
A SDI -VB +VB DIR DIR
B NA SW SW +I -I
Modbus/RTU
(P/N: A1411)
A SDI -VB +VB DIR DIR
B GND -VB +VB D+ D-
M-Bus
(P/N: A1412)
A SDI -VB +VB N/A N/A
B N/A -VB +VB M-Bus M-Bus
4 ... 20 mA plus pulse,
compatible to S400
(P/N: A1413)
A SDI -VB +VB +I +P
B NA -VB DIR SW SW
Modbus/TCP
(P/N: A1424)
A SDI -VB +VB DIR DIR
B See section 9.3.2.
Wire colour brown white blue black grey
Legend to pin assignment
GND: Ground for Modbus/RTU SW: Isolated pulse output
SDI: Digital signal (internal use) DIR Flow direction input
-VB: Negative supply voltage D+: Modbus/RTU data +
+VB: Positive supply voltage D-: Modbus/RTU data -
+I: Positive 4 ... 20 mA signal M-Bus: M-Bus data
-I: Negative 4 ... 20 mA signal NA: Not applicable
+P: Pulse output
ATTENTION!
Do not screw the M12 plug using force. Otherwise, it
may damage the connecting pins.
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