AS-Interface Analog Module
Connections, Displays and Operating Keys
Subject to reasonable modifications due to technical advances
Copyright Bihl+Wiedemann, Printed in Germany
Bihl+Wiedemann GmbH · D-68199 Mannheim · Phone +49-621-339960 · Fax +49-621-3392239 · Internet http://www.bihl-wiedemann.de
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20
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26
4.3
Analog Modules in IP20 with 4 Channels
4.3.1
Power supply of Analog Modules
The analog modules are conntected by clamp terminals to the AS-interface. The
external help voltage is connected by clamps.
4.3.2
Display and Operating Elements
The analog modules (except Pt100 module) offer the possibilities to
supply the attached sensors/actuators either via AS
-
Interface or via
external help voltage. As soon as the external help voltage is fitted,
the sensors/actuators will be supplied automatically out of the exter-
nal help voltage.
The sensors/actuators and AS-Interface are galvanical separated
yet.
Connections
pin
input
output
4 Pt100
1
24 V ext. 24 V ext. FE
2
I1 Sig.+
O1 Sig.+ FE
3
0 V ext.
0 V ext.
FE
4
I1 Sig.-
O1 Sig.-
FE
5
24 V ext. 24 V ext. CHS1+
6
I2 Sig.+
O2 Sig.+ CH1+
7
0 V ext.
0 V ext.
CH1-
8
I2 Sig.-
O2 Sig.-
CHS1-
9
24 V ext. 24 V ext. CHS2+
10
I3 Sig.+
O3 Sig.+ CH2+
11
0 V ext.
0 V ext.
CH2-
12
I3 Sig.-
O3 Sig.-
CHS2-
13
I4 Sig.-
O4 Sig.-
CHS3-
14
0 V ext.
0 V ext.
CH3-
15
I4 Sig.+
O4 Sig.+ CH3+
16
24 V ext. 24 V ext. CHS3+
17
n. c.
n. c.
CHS4-
18
n. c.
n. c.
CH4-
19
n. c.
n. c.
CH4+
20
n. c.
n. c.
CHS4+
21
AS-i+
AS-i+
AS-i+
22
AS-i-
AS-i-
AS-i-
23
AUX+
AUX+
n. c.
24
AUX-
AUX-
n. c.
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
21 22 23 24
