8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 98
TriggerWait
The "TriggerWait" signal can be used to optimize the acquisition of the trigger image and to avoid excessive
triggering.
It is recommended to use the "TriggerWait" signal only when the camera is configured for hardware trigger.
For software trigger, please use the "AcquisitionStatus". When the camera is ready to receive a trigger
signal of the corresponding trigger mode, the "TriggerWait" signal goes low. When the corresponding
trigger signal is used, the "TriggerWait" signal goes high. It remains high until the camera is ready to
receive the next trigger.
When the trigger mode is "FrameStart" ("FrameBurstStart" mode is off), the camera acquires only one
frame of image when it receives the trigger signal. After receiving the trigger signal, the "FrameTriggerWait"
signal is pulled low and the camera starts exposure transmission. After the transfer is complete, the
"FrameTriggerWait" signal is pulled high.
Trigger Signal
FrameTriggerWait
Signal
Output Image
Image 1
Image 2
Image 3
Signal 1
Signal 2
Signal 3
Figure 8-9 "FrameTriggerWait" signal schematic diagram
When the trigger mode is "FrameBurstStart" ("FrameStart" mode is off), each time the camera receives
a trigger signal, and it will acquire the set AcquisitionFrameCount frames of image. After receiving the
trigger signal, the "AcquisitionTriggerWait" signal is pulled low and the camera start s the exposure
transmission. When the transmission is completed and images are transferred, the
"AcquisitionTriggerWait" signal will be pulled high.
Signal 2
Signal1
Image1
Trigger Signal
AcquisitionTriggerWait
Signal
Output Image
Image2
Image4
Image3
Image5
Image6
Figure 8-10 "AcquisitionTriggerWait" signal schematic diagram
When the trigger mode is "FrameBurstStart" ("FrameStart" mode is on), if the high-speed burst frames is
set to 3, the camera will first send a "FrameBurstStart" trigger signal. After receiving the trigger signal,
the "AcquisitionTriggerWait" signal is pulled low. Then three "FrameStart" trigger signals need to be sent
continuously. Each time the camera receives a trigger signal, it transmits one frame image. After receiving