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optoCONTROL 1202
6.3
Analog Output
Characteristics: Voltage output
- 0 V ... 10 V, max. 3 mA
-
Resolution: 12 bit DA-converter
Computation of a value:
x [mm] =
U * MR
OUT
10 V
Output signal U
OUT
= 100 % Measuring signal;
MR = Measuring range
Example: U
OUT
= 4.6 V
Measuring range = 74.9 mm
Value = 34.45 mm
SMR
EMR
SMR
EMR
SMR
EMR
0 V
Transmitter
Receiver
Receiver fully
exposed
0 %
100 %
Measuring range
Receiver completely
blocked
10 V
The system outputs 0 V, if no
object blocks any light and the
receiver is fully exposed.
As the light for the receiver
increases the output voltage
linearly.
If the light curtain is fully cov-
ered by a target the receiver
outputs a signal of 10 V.
Fig. 11 Analog signal behaviour with different target positions
