Photon Focus MV3-D640I-M01-144-CL, User Manual, Page: 25 / 121

4.3 Frame Control
The camera runs in free-running mode when the mode of both triggers, the
frame start trigger and frame burst start trigger, is set to off and the exposure
mode is set to "Timed" (see Section 4.4.1 for more information about the expo-
sure mode).
Fig. 4.6 shows the procedure of a single frame capture started with a frame start trigger. The
acquisition start trigger mode is off, so the camera waits for a frame start trigger once the
acquisition command has been executed. Every receiving frame start trigger starts a capture of
one single frame.
F
r a m e 1 . . . . F r a m e N
A c q u i s i t i o n A c t i v e
F
r a m e S t a r t
T r i g g e r 1
F r a m e S t a r t
T r i g g e r 2 F r a m e S t a r t
T r i g g e r N
F r a m e
A c t i v e F r a m e
A c t i v e F r a m e
T r i g g e r
W a i t F r a m e
A c t i v e F r a m e
T r i g g e r
W a i t F r a m e
T r i g g e r
W a i t F r a m e
T r i g g e r
W a i t
A c q u i s i t i o n S t o p ( ) A c q u i s i t i o n S t a r t ( )
A c q u i s i t i o n S t a r t T r i g g e r M o d e = O f f
A c q u i s i t i o n E n d T r i g g e r M o d e = O f f
F r a m e S t a r t T r i g g e r M o d e = O n
F r a m e B u r s t S t a r t T r i g g e r M o d e = O f f
E x p o s u r e M o d e = T i m e d
Figure 4.6: Triggered Image Acquisition of single Frames
4.3.2 Frame Burst Start Trigger
The frame burst start trigger can be used to start a burst of frame capture. The main property
of this trigger is the trigger mode. It can be set to on or off:
Frame Burst Start Trigger Mode = on As soon as a frame burst start trigger has been received,
a capture of a burst of frames has been started and the frame status goes to "Frame
Active". The number of frames is defined by the "Acquisition Burst Frame Count" value.
The camera goes to "Frame Trigger Wait" again, when the configured number of burst
frames has been captured. The camera is ready to process a frame burst start trigger,
when the acquisition is active, showed by the "Acquisition Active" status, and when the
"Frame Trigger Wait" status is asserted. The frame rate of a burst sequence is configured
by the acquisition frame rate value and the acquisition frame rate enable configuration
(see Section 4.2.2 for more information)
Frame Burst Start Trigger Mode = off
The frame burst start triggers are ignored. No capturing
of burst of frames is started.
It is possible to set both, the mode of frame start trigger and frame burst start
trigger, to on. In this case, the camera starts a single frame or a burst of frame
capture, depending which trigger arrives first.
Fig. 4.7 shows the procedure of a burst of frame and single frame capture. The Acquisition
start and end trigger mode is on. So the camera waits for an acquisition trigger once the
acquisition command has been executed. During this period any frame burst start or frame
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