CV-M9 CL
6.4.4. Edge Pre-select Trigger Mode
An external trigger pulse initiates the capture, and the exposure time (accumulation time) is the
fixed shutter speed set by SH or PE. The accumulation can be LVAL synchronous or LVAL a-
synchronous.
The resulting video signal will start to be read out after the selected shutter time.
For timing details, refer to fig. 13. through fig. 20. and fig. 25.
To use this mode:
Set function:
Trigger mode to “Edge pre-select”
TR=1
Scanning
SC=0
through
3
Vertical binning
BI=0, BI=1
Shutter mode to normal or programmable
SM=0 through 2
Shutter speed
SH=0 through 11
Programmable exp.
PE=0 through 791
Accumulation LVAL synch. or a-synch.
LS=0, LS=1
Other functions and settings
Input:
Ext. trigger. Camera Link or 12 HiRose
TI=0, TI=1
Important notes on using this mode
Trigger pulse >2 LVAL to <1 FVAL
To avoid
≤
1 LVAL jitter in synch. accum, synchronize the trigger to LVAL.
Minimum trigger interval in synch. accum.
≥
(1 FVAL + 2 LVAL).
Minimum trigger interval in a-synch. accum.
≥
( exposure time + 1 FVAL + 3 LVAL).
Fig. 25. Edge pre-select. LVAL synchronized.
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