4-33
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b
Voltage sensors can be connected for the measured-value ranges
"
1.25 V,
"
2.5 V,
"
5 V,
"
10 V.
The settings of the switches in DIL switch block S4 determine whether mea-
surement is floating or non-floating (see Section 4.4.1).
Note
If a voltage sensor is used for floating measurement, the maximum
permissible common-mode voltage is U
CM
v
"
1 V and must not be
overshot relative to M
ANA
at any differential input.
The illustration below shows how voltage sensors are connected in a 2-wire
circuit for floating measurement:
Shield
.
U
U
–
+
–
+
1
23
4
5
6
78
ON
ON
S5
CH0
CH1
CH2
CH3
M
ANA
+
–
+
–
+
–
+
–
Figure 4-21
Connection to ET 200C; AI 4
12 Bit of Voltage Sensors in 2-Wire
Circuit for Floating Measurement
Voltage Sensors
Mechanical and Electrical Installation
Summary of Contents for SIMATIC ET 200C
Page 18: ...xviii ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Contents ...
Page 26: ...1 8 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Configuration ...
Page 44: ...2 18 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b ET 200C Configuration Options ...
Page 68: ...3 24 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b ET 200C Components ...
Page 202: ...10 4 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b General Technical Specifications ...
Page 226: ...11 24 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Digital Modules ...
Page 270: ...12 44 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Analog Modules ...
Page 280: ...13 10 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Other ET 200C Components ...
Page 310: ...C 4 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Safety Related Guidelines ...
Page 318: ...Glossary 8 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Glossary ...
Page 324: ...Index 6 ET 200C Distributed I O Station EWA 4NEB 812 6119 02b Index ...