Software Trigger; Missed Trigger Counters; Counter Reset By An External Signal - Photon Focus MV1-D3360-160-CL Series User Manual

5.2.7 Software Trigger

The software trigger enables to emulate an external trigger pulse by the camera software
through the serial data interface. It works with both burst mode enabled and disabled. As
soon as it is performed via the camera software, it will start the image acquisition(s),
depending on the usage of the burst mode and the burst configuration. The trigger mode
must be set to Interface Trigger or I/O Trigger.

5.2.8 Missed Trigger Counters

Missed Trigger Counter If an external trigger (interface trigger or I/O trigger) is applied while
the camera is not ready to accept a new trigger, a counter (Missed Trigger Counter) is
incremented and the trigger is rejected. The value of the Missed Trigger Counter can be
read out from a camera register (Counter.MissedTrigger) or from the status line (see
Section 5.10). When the Missed Trigger Counter reaches its maximal value it will not wrap
around. The user can reset the Missed Trigger Counter.
Missed Burst Trigger Counter The missed burst trigger counter counts trigger pulses that were
ignored by the camera in the burst trigger mode because they occurred while the camera
was not ready to accept a new trigger. To avoid this, the Burst Period Time must be
incremented so that the minimal frame time for the current settings is not violated. The
value of the Missed Burst Trigger Counter can be read out from a camera register
(Counter.MissedBurstTrigger) or from the status line (see Section 5.10). When the Missed
Trigger Counter reaches its maximal value it will not wrap around. The user can reset the
Missed Burst Trigger Counter.

5.2.9 Counter Reset by an External Signal

The image counter and the real time counter (timestamp) (see Section 5.10.1) can be reset by
an external signal. Both counters can be embedded into the image by the status line (see
Section 5.10) or their register can be read out. These counters may be used to check that no
images are lost or to ease the synchronisation of multiple cameras.
The external signal to reset the above mentionend counters is selected by the property
ResetCounter.Source. Available choices are CC1 to CC4, IO_Trigger and ExposureStart.
ExposureStart resets the counters at the start of an exposure.
The property ResetCounter.Mode determines how often the selected source should reset the
counters. The setting Once works together with the property ResetCounter.OnNextTrigger.
If Counter_ResetCounterMode=Once, then the counters are reset on the next active edge of the
selected reset source (property ResetCounter.Source) after the device is armed with
ResetCounter.OnNextTrigger=True. The register ResetCounter.OnNextTrigger is reset after the
resetting trigger is received.
The setting Counter_ResetCounterMode=Continuous resets the counters on every occurrence of an
active edge of the reset source without the requirement to arm the device first. This setting is
suited if the reset source signal is different than the camera trigger.
The active edge of the reset input can be set by the property ResetCounter.SourceInvert. If set
to True, then the rising edge is the active edge, else the falling edge.
5.2 Trigger and Strobe
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