ifm
System Manual
ecomat
mobile
PDM360NG (CR1080, CR1081, CR9042) Target V01
2011-07-28
Configurations
Function configuration of the inputs and outputs
76
Analogue inputs
7346
2426
The inputs can also be configured as analogue inputs via the application program. The measuring
range can be set as follows:
Current input 0...20 mA
Voltage input 0...10 V
Voltage input 0...32 V
If in the operating mode "0...32 V" the supply voltage is read back, the measurement can also be
performed ratiometrically. This means potentiometers or joysticks can be evaluated without additional
reference voltage. A fluctuation of the supply voltage has no influence on this measured value.
NOTE
In case of ratiometric measurement the connected sensors should be supplied via the same voltage
source as the controller. So, faulty measurements caused by offset voltage are avoided.
U
B
Analog
Eingang / Input
Input Filter
Str
o
mme
s
s
u
n
g
C
urrent m
easurem
ent
S
pannungsm
essung
V
oltage m
easurem
ent
0...10 / 32 V
Referenz-Spannung
Reference Voltage
Spannung
Voltage
Figure: Block diagram of the analogue inputs