Page 56
Measurement Value Output
optoNCDT 1700
7. Measurement Value Output
The optoNCDT1700 can issue the measurement values either via the analog output or the RS422 serial inter-
face. The two different types of output cannot be used concurrently. The analog output can be programmed
for use as a current output or a voltage output.
7.1 Voltage Output
Range for measurement voltages -0.1 V ... +10.1 V
Output amplification U
OUT
10.0 V = 100 % Measuring range
Error value: 10.2 V (±10 mV)
Calculation of a measurement value x in mm from analog voltage:
x [mm] = U
OUT
*
MR [mm]
10.0 [V]
Reference
value: SMR
x [mm] = U
OUT
* - MR/2
MR [mm]
10.0 [V]
Reference
value: MMR
Example: Measuring range = 10 mm, U
OUT
= 4.6 V; Result: x = 4.6 mm respectively x = -0.4 mm
SMR EMR
10.2 V
Measuring object
10 V
0 V
-0.1 V
Fig. 41 Voltage output signal
A 10 nF ceramic
capacitor between
analog output and
AGND of subsequent
devices reduces high
frequency interfer-
ences.
SMR = Start of
measuring range
MMR = Midrange
EMR = End of
measuring range
MR = Measuring
range
To Next Page
Loading...