51
Programming examples
Copyright eltima electronic 2022
Release time
=
200 ms
, see explanation under output a.
The
release period
is set equal to the
release time
.
Because the camera shall only make a picture every 2 seconds, the
in-
terval
is set to
2000 ms
.
The
trigger
is set to
barrier 1
.
The
drive mode
is set to
continuous
, so that the camera can take
multiple pictures while the light barrier remains interrupted.
A
time window
is not required, so the
start-
and
end-time
are the
same.
The
open-shutter
mode and
keep-active
function are not needed
in this example.
Process sequence:
Analog part
The light barrier 1 is interrupted at the time 0 ms
. Thereupon the analog
part sets trigger 1
. Because no output triggers on light barrier 1, it has no
effect.
With the interruption of the beam 2
, at 100 ms, the analog part sets trig-
ger 2
and reports both the fulfilment of the action mode, here the cross
barrier, as well as the interruption of the beam 2. Outputs a, b and c react to
this trigger. Strictly speaking, three triggers are set at this time: one for the
action mode and one for each of the light barriers 1 and 2.
At 200 ms, the light barrier 3 is
interrupted and issues the trigger 3
,
to which output d reacts.
Trigger 4
is set at 500 ms, because the light barrier 2 has been interrupted
again.
Trigger 5
, at approximately 580 ms, reports the fulfilment of the action
mode again, but remains without effect, because the outputs a and b are still
busy.
Figure 31: Sequence diagram - example with cross barrier
Light barri-
ers
output a
output b
output c
output d