4-14
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b
Wiring of ET 200C; DI 8
DC 24V (6ES7 141-0BF00-0XB0), Continued
The following must be noted if you feed the sensor supply of an input di-
rectly to an input (”Read back output” function):
If no load is connected,
–
the diagnostics for the sensor supply must be disconnected in the
COM ET 200 (see Section 5.1.4) or
–
a resistor (2.4 k
W
) must be connected to ground at the input for
wire-break recognition.
Output
Input
2,4 k
W
Wire-Break Recognition with 2.4-k
W
Resistor
Figure 4-4
Sensor Supply Returned to Input without Load
If a load is connected, only a wire break on the connection to the load will
be recognized. The connection between the sensor supply and the input
cannot be monitored for wire breaks.
Output
Input
Load
Wire-Break Recognition with Load
Wire-Break Recognition not
Possible
Figure 4-5
Sensor Supply Returned to Input with Load
Return Sensor
Supply to Inputs
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 ...