USB3-FRM13_K Users Manual (Rev 1.1)
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- http://www.daqsystem.com
2.6 Area scan camera Trigger Mode
External trigger setting of Area scan cameras use a 11 pin of the J11 connector.
It can be set to level mode and Edge mode.
LEVEL Mode --- When Trigger input signal (TRIGGER IN) becomes H level, the image frames
start the input operation. When Trigger input signal is high after the image input
end operation, the image is continuously input.
TRIGGER_IN
FVAL(LVAL)
Camera
Output
Input Image
Frame 0
Frame 1
Frame 2
Frame 3
Frame 4
Frame 1
Frame 2
Frame 4
t
Start Frame
When FVAL valid
Detect Level
[Figure 2-13. Level Mode Timing]
EDGE Mode ---When the Trigger input signal (TRIGGER_IN) detects a change from L level to
H level, it starts the image input operation. When the Trigger input signal is
changed to the H level at the L after the image input operation is finished, it starts
again image input operation.
TRIGGER_IN
FVAL(LVAL)
Camera
Output
Input Image
Frame 0
Frame 1
Frame 2
Frame 3
Frame 4
Frame 1
Frame 4
t
Start Frame
When FVAL vaild
Detect Edge
[Figure 2-14. Edge Mode Timing]