Page 46
Set Sensor Parameter
optoNCDT 1220
Implemented trigger conditions:
Level triggering
with high level / low level.
Continuous measurement input or output, as long as the
selected level is applied. Then stops the data output.
The pulse duration must be at least one cycle time. The sub-
sequent break must also be at least one cycle time.
U
I
A
0
t
t
D
0
t
Fig. 26 High trigger level (above) with analog output A
0
and digital output signal D
0
(below)
Edge triggering
with rising or falling edge.
Starts measured value acquisition or output as soon as
the chosen edge is applied to the trigger input. The sensor
outputs a fixed number of measurement values when trigger
conditions have been met. Value range from 1 ... 16383. After
termination of data output the analog output sticks to the last
value (sample & hold).
Pulse duration must be at least 50 µs.
U
I
A
0
t
t
D
0
t
Fig. 27 Trigger edge HL (above) with analog output A
0
and digital output signal D
0
(below)
7.4.4.2
Value Output Trigger
Measurement values are calculated continuously and independently of the trigger event. A trigger event
simply triggers the value output via a digital interface. Therefore, any values measured immediately before the
trigger event are included in calculating mean values (averages).
Summary of Contents for ILD 1220-10
Page 8: ...optoNCDT 2300...
Page 93: ......
