External Triggering - Baumer OX200 Operating Manual

Baumer
3.3.9

External triggering

With external triggering, the sensor waits for an external signal, which can also be fed in via
specific inputs (see also
Single-shot measurement
In Single Shot mode, the sensor records exactly one measurement value as soon as it is
triggered by an external pulse. The recorded measurement value is maintained at all outputs.
For the specification of input IN 1 (sync in), please see the data sheet that is available for down-
load at www.baumer.com/OX200. The delay between the detection of a trigger and the start of
a measurement is < 25 µs.
The sensor checks the IN 1 (sync in) input before each measurement.
n
As soon as the sensor detects a falling edge (transition from high to low level) on input IN 1
n
(sync in), a measurement is triggered.
The previous measuring cycle is always completed first, even if input IN 1 (sync in) is set to
n
high.
The power of the laser beam is reduced during the waiting time (Hold).
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As soon as input IN 1 (sync in) is set to high, all output functions are frozen in their last state
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until the next measurement.
Input IN 1 (sync in) must be at least 25 µs at the low level before the sensor starts measur-
n
ing again.
When the IN 1 (sync in) pulse is ideally timed in relation to the exposure time, a fast meas-
n
uring rate can be achieved that is comparable to the one in free running mode.
Example: Re- If the laser line of sensor 2 lies in the field of view of sensor 1, the sensors may interfere with
ciprocal influ- each other. If this interference cannot be prevented by suitable mounting, the sensors can be
ence operated asynchronously using the IN 1 (sync in) input and Single Shot trigger mode. A higher-
level controller must generate the signals for this. For more information, see
ting [} 88].
OX200 | V2
Pin assignment [} 49]).
Operating Manual
Description | 3
Trigger Mode set-
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