50
Programming examples
Copyright eltima electronic 2022
Basic parameters:
The
action mode
is set to
cross barrier
according to the task.
Because the expected subjects are bigger than 4 - 5 cm, the sensitivity of
all three light barriers is set to 9 in order to avoid false triggers caused by
vibrations or small insects that could buzz through the beams.
The
range
is set to
distance
to allow a working distance of several me-
ters.
The
dwell time
remains set to
zero
, since the trigger for the outputs
should be set without any delay.
Output a
The
shutter lag
is set to
zero
because the output should switch im-
mediately after the trigger.
Most of the cameras can be triggered with a
release time
of
200 ms
.
Professional cameras will release even with a much lower release time,
but to be sure we use here
200 ms
.
Since no further triggering of the camera will follow, the
release pe-
riod
is set equal to the
release time
.
Because after each release 500 ms must pass before a new release, the
interval
is set to 500 ms + Period (200 ms) =
700 ms
.
Since only one release is wanted, the
repetition
is set to
0
.
The
trigger
is set to
action mode
.
In order to achieve the lowest possible shutter lag, the camera is kept in
the active mode with the
keep-active
function.
The
wake-up
parameter is therefore set to 99.
A time window is not required, so the start and end times are the same.
The open-shutter function is not used in this example.
Output b
As required, the
lag time
is set to
200 ms
.
Release time
=
200 ms
, see above.
In this case, the
release period
is
300 ms
to add a 100 ms delay
before the second repetition.
The
interval
is calculated from:
Lag time
+ 2 x
period
+ waiting time
= 200 ms + 2 x 300 ms + 100 ms =
900 ms
.
Two releases means
1 repetition
.
The
trigger
is set to
action mode
.
A time window is not required, so the start and end times are the same.
The
open-shutter
mode and
keep-active
function are not needed
in this example.
Output c
The
shutter lag
is set to
zero
because the output should switch im-
mediately after the trigger.
Release time
= 200 ms, see explanation under output a.
Since no further triggering of the camera will follow, the
release pe-
riod
is set equal to the
release duration
.
In order to enable a fast trigger sequence in the case of interruptions in
quick succession, the
interval
is set equal to the
period
to
200 ms
.
The
trigger
is set to
barrier 1
.
A
time window
is not required, so the
start-
and
end-time
are the
same – the values of start and end time do not matter if they are both
the same.
The
open-shutter
mode and
keep-active
function are not needed
in this example.
Output d
The
shutter lag
is set to
zero
because the output should switch im-
mediately after the trigger.