Technical Specifications
7-107
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Connecting current sensors as two- and four-wire measuring transducers
The supply voltage is fed to the two-wire measuring transducer and is inherently
short circuit-proof. The two-wire measuring transducer then converts the fed
measured value into a current. Four-wire measuring transducers have a separate
supply voltage connection.
The two-wire measuring transducers must be insulated measuring sensors.
The figure below shows how current sensors are connected as two-wire measuring
transducers to an EM 144 AI 2
I expansion module (4 to 20 mA).
M+
Two-wire
measuring
transducer
P
+
–
Sensor,
e.g. pressure gauge
M–
Socket X1
Socket X2
*
Made available by the ET 200X for the connected sensor
Connection of socket X2:
see socket X1
1M
1L+
*
1
2
3
4
1
2
3
4
Figure 7-25
Connection of current sensors (two-wire measuring transducers) to analog inputs (EM with
order number 6ES7 144-1GB41-0XB0)
Summary of Contents for SIMATIC ET 200X
Page 8: ...Preface viii ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 20: ...Contents xx ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 40: ...Product Overview 1 20 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 58: ...Configuration Options 2 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 80: ...Installation 3 22 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 124: ...Configuration Options 2 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 328: ...Order Numbers A 10 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 348: ...Dimesioned Drawings and Pinouts C 18 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...
Page 362: ...Index Index 8 ET 200X Distributed I O Device EWA 4NEB 780601602 06 ...