AS-Interface Analog Module
Connections, Displays and Operating Keys
Subject to reasonable modifications due to technical advances
Copyright Bihl+Wiedemann, Printed in Germany
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Connection of a 4-wire-sensor to the analog input module in IP20 with 2
channels:
A 4-wire-sensor is attached to terminal 3 (24 V), 1 (I1 Sig.+) for current input re-
spectively 9 (U1 Sig.*) for voltage input, 4 (0 V ext.) and 2 (I1 Sig.-) for current in-
put respectively 10 (U1 Sig.-) of channel 1 (see figure above for details).
Corresponding channel 2 is attached via 7 (24 V) and 5 (I2 Sig.+) for current input
respectively 11 (U2 Sig.+) for voltage input as well as 8 (0 V ext.) and 6 (I2 Sig.-)
for current input repsectively 12 (U2 Sig.-) for voltage input.
Connection of a sensor with own power supply to the analog input module
in IP20 with 2 channels
:
A sensor with own supply is attached for channel 1 to terminal 1 (I1 Sig.+) and 2
(I1 Sig.-) respectively for voltage input to terminals 9 (U1 Sig.+) and 10 (U1 Sig.-)
of channel 1.
Corresponding channel 2 is attached for current input via 5 (I2 Sig.+) and 6
(I2 Sig.-) respectively for voltage input via 11 (U2 Sig.+) and 12 (U2 Sig.-).
Analog module
4-wire-sensor
Analog module
Sensor with own power supply
24V ext.
Sig.+
Sig.-
GND
24V ext.
Sig.+
Sig.-
0V ext.
supply PELV
without earth
connection
