User`s guide

TRIGGERING
SDK SECTION 5
Page 52
NOTES:
1. If you have a shutter connected, and are using an external trigger, you must ensure that the
shutter is open before the optical signal you want to measure occurs. When a camera is
operated in frame transfer mode the external trigger sequence is different. Please refer to
the camera user manual for a full description.
2. Some cameras may support the
iCam technology. If they do, it will be fully operational in
external trigger mode. It is very similar to the Software trigger functionality except that
instead of a Software command instigating the acquisition, an external source does so. All
the benefits described in the Software Trigger section can also be applied to the external
trigger mode. It is set up in the same way with the same modes except that the trigger mode
is set to External.
Frame transfer is also fully functional in iCam External Trigger mode. When Frame Transfer is on it
means that the Arm signal from the camera will be enabled during the current readout at a point to
ensure the next exposure will end after the current readout is finished. This will give the fastest
frame rate and also ensure that the next exposure cannot end until the previous one has been
readout.