Analog input module AI 4xU/I/RTD 4xM12 (6ES7144-5KD00-0BA0)
14
Equipment Manual, 08/2021, A5E32350124-AG
Wiring
3
3.1
Terminal and block diagram
The figure below shows an example of the pin assignment for voltage measurement and
current measurement.
①
Voltage measurement
X30
Infeed of the ET-Connection
②
Current measurement (2 DMU)
X31
Loop-through of the ET-Connection
③
Current measurement (4 DMU, with internal power
supply)
1L+
Supply voltage 1L+ (non-switched)
④
Current measurement (4 DMU, with external power
supply)
1M
Ground 1M (non-switched)
⑤
Multiplexer
2L+
Load voltage 2L+ (switched)
⑥
Analog-to-digital converter (ADC)
2M
Ground 2M (switched)
⑦
Microcontroller
M
n
+
Measuring input positive, channel n
⑧
ET-Connection interface
M
n
-
Measuring input negative, channel n
⑨
Internal supply voltage
U
V
24 V encoder supply
X10 to X13 Channels 0 to 3
AI
LEDs channel status (0, 1, 2 and 3) (green)
X80
Infeed of supply voltages
DIAG
LED diagnostic status (red/green)
X81
Loop-through of supply voltages
Figure 3-1
Terminal and block diagram for voltage and current measurement
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