Dahua 3000 Series, User Manual

Page: 39 / 51

Main Function Description
39
Parameter Explanation
AcquisitionFrameCount
Number of frames to acquire.
It is invalid to change this parameter when image acquisition mode
is SingleFrame or Continue. You can set the acquisition frame
count in MultiFrame mode.
AcquisitionFrameRate
Acquisition frame rate.
The frame rate set in AcquisitionFrameRate is valid only when
AcquisitionFrameRateEnable is True.
If the frame rate is set beyond the max frame rate
(ResultingframeRateAbs) in the current mode, the actual frame rate
of the camera is ResultingframeRateAbs, not the value set by
AcquisitionFrameRate.
AcquisitionFrameRateEnable
AcquisitionStatusSelector
Selects which trigger status to view.
Selects AcquisitionTriggerWait or FrameTriggerWait in
AcquisitionStatusSelector and views in AcquisitionStatus: True is
for waiting for a trigger and False for having triggered.
AcquisitionStatus
TriggerSelector
Selects the trigger type.
Selects FrameStart or AcquisitionStart in TriggerSelector and select
On/Off in TriggerMode to enable/disable the trigger mode. You
need to trigger AcquisitionStart at first when triggering together
，
then you can trigger FrameStart to acquire frames.
TriggerMode
TriggerSoftware
Trigger mode.
TriggerSource supports SoftwareTrigger and lineN
（
HardwareTrigger
）
.
 When you select SoftwareTrigger, click or call API in
TriggerSoftware to generate software trigger.
 When you select lineN, set RisingEdge or FallingEdge in
TriggerActivation, then the external cable generates a rising or
falling signal to achieve hardware trigger.
You can separately select trigger source for AcquisitionStart and
FrameStart.
TriggerSource
TriggerActivation
TriggerDelay
Trigger delay.
Indicates the time between when the camera receives the trigger
signal and when the trigger takes effect. It is valid for both soft
trigger and hard trigger.
LightTriggerDelay
It is used to set the delay time between when the camera receives
the trigger signal and when LightTrigger takes effect to control the
opto-coupler conduction. Opto-coupler conduction time is when
LightTrigger starts to the end of the exposure.
During the delay, the camera can’t receive a new trigger, otherwise