User`s manual

Genie HM-HC Series-GigE Vision Camera Operational Reference  51
Synchronization Timing
Genie supports two types of sensor synchronization used to align the exposure to sensor timing:
 Synchronous Mode: Exposure is synchronous to the line timing of the sensor. Exposure granularity is 1µs and
the readout can be concurrent to the exposure for the fastest possible frame rate. But the frame exposure start is
subject to 1 horizontal line time jitter.
 Reset Mode: Timing is reset to initiate exposure of next frame. Exposure granularity is 1µs, but readout must
be sequential to exposure, reducing the maximum achievable frame rate. Frame exposure start has only the
fixed 100μs delay from active trigger edge to start of exposure.
Synchronous Mode
 Synchronous mode starts the exposure period aligned to the sensor horizontal line timing and the programmable
duration steps are 1µs.
 Exposure duration is from a minimum of 56µs up to 4 sec.
 In this mode, sensor exposure and sensor readout of the previous frame's exposure occur simultaneously. This
allows operating the sensor up to its maximum frame rate.
 Any trigger received before the end of the exposure is ignored. The application can elect to receive messages
about ignored triggers. See "Events" on page 71.
 Si
nce the external trigger is asynchronous with the Genie horizontal line timing, the frame exposure start is
subject to 1 horizontal line jitter.
Synchronous Mode Timing example for Genie