Photon Focus CameraLink MV1-D1280, Руководство пользователя

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5 Functionality
trigger is generated by the frame grabber board and sent on the CC1 signal through the
CameraLink
®
interface. Some frame grabbers allow the connection external trigger
devices through an I/O card. A schematic diagram of this setup is shown in Fig. 5.11.
I/O Trigger In the I/O trigger mode, the trigger signal is applied directly to the camera by the
power supply connector (via an optocoupler). A setup of this mode is shown in Fig. 5.12.
The electrical interface of the I/O trigger input and the strobe output is described in
Section 6.1.3.
C a m e r a
S y s t e m P C
M a c h i n e V i s i o n
B
A
D a t a C a m e r a L i n k
P o w e r
E X S Y N C ( C C 1 ) / S o f t t r i g g e r
C a m e r a L i n k
T M
F r a m e G r a b b e r
Figure 5.10: Interface trigger source
I / O B o a r d
C a m e r a 1
S y s t e m P C
M a c h i n e V i s i o n
B
A
D a t a C a m e r a L i n k
P o w e r
T r i g g e r S o u r c e
E X S Y N C ( C C 1 ) / S o f t t r i g g e r
C a m e r a L i n k
T M
F r a m e G r a b b e r
F l a s h
C a m e r a 2
D a t a C a m e r a L i n k
E X S Y N C ( C C 1 ) / S o f t t r i g g e r
P o w e r
Figure 5.11: Interface trigger with 2 cameras and frame grabber I/O card
5.2.3 Trigger Timing
In the external trigger mode the rising edge of the trigger pulse starts the camera states
machine, which controls the sensor and optional an external strobe output. Fig. 5.13 shows the
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