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S5-115U Manual
Startup Procedures
460 Analog Input Module:
Connect the transducer directly to the front connector on the AI 460 (Terminals: MO+, MO -).
The transducer supplies values between 0 and 20 mA, 0 mA corresponding to a liquid level of
0.00 meters and 20 mA to the maximum liquid level, which is 10.00 meters.
Plug a±20 mA range card (6ES5 498-1AA41) into the AI 460.
A digital value between 0 and 2048 units, which is subsequently processed by the application
program, is then present at the output of the analog input modules's internal ADC (see
Figure 10-32).
Trans-
Differen-
ducer
tial
pressure
Figure 10-32. Function of the 460 Analog Input Module
Set the mode selectors at the rear of the module as follows (Figure 10-33):
Switch I
Cyclic
No wirebreak signal
sampling
1
2
3
4
50 Hz system frequency
EWA 4NEB 811 6130-02b
AI 460
M0
+
±20 mA
0 to
M0 -
20 mA
range card
5
6
Figure 10-33. Setting Mode Selectors I and II
Analog Value Processing
A
CPU
D
Switch II
500 mV/... mA
1
2
3
4
5
No reference junction
compensation
Abs. value and
sign
6
10-65
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