AS-Interface Analog Module
Connections, Displays and Operating Keys
Subject to reasonable modifications due to technical advances
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4.5.2
Analog Modules in IP20 with 2 Channels
4.5.2.1
Pin Configuration of Analog Input Modules in IP20 with 2 Channels
Connection of a 2-wire-sensor to the analog input module in IP20 with 2
channels:
A 2-wire-sensor is attached to terminal 3 (24 V) and 1 (I1 Sig.+) of channel 1 for
current input respectively to 9 (U1 Sig.+) for voltage input. The terminals 3 (0 V
ext.) and 2 (I1 Sig.-) for current input respectively 10 (U1 Sig.-) for voltage input
have to be connected to each other by using a bridge.
Corresponding channel 2 is atteched via terminal 7 (24 V) and 5 (I2 Sig.+) respec-
tively 11 (U2 Sig.+) as well as 8 (0 V ext. and 6 (I2 Sig.-) respectively 12 (Us Sig.-).
The terminals 8 (0 V ext.) and 6 (I2 Sig.-) for current input respectively 12
(U2 Sig.-) for voltage input have to be connected to each other by using a bridge.
Connection of a 3-wire-sensor to the analog input module in IP20 with 2
channels:
A 3-wire-sensor is attached to terminal 3 (24 V), 1 (I1 Sig.+) for current input re-
pectively 9 (U1 Sig.+) for voltage input and 4 (0 V ext.) of channel 1. Terminals 4
(0 V ext.) and 2 (I1 Sig.-) for current input repectively 10 (U1 Sig.-) for voltage input
have to be connected to each other by using a bridge.
Corresponding channel 2 is attached via terminal 7 (24 V) and 5 (I2 Sig.+) for cur-
rent input respectively 11 (U2 Sig.+) for voltage input as well as 8 (0 V ext.) and 6
(I2 Sig.-) for current input respectively 12 (U2 Sig.-) for voltae input.
Analog module
2-wire-sensor
Analog module
3-wire-sensor
24V ext.
Sig.+
Sig.-
0V ext.
24V ext.
Sig.+
Sig.
-
0V ext.