CMCB-140MCL/CM-140MCL-UV/CMCB-140PMCL
19
6.3.2.
Pre-select Trigger Mode
An external trigger pulse initiates the capture, and the exposure time (accumulation time) is
defined by the SH or PE commands.
The resulting video signal will start to be read out after the selected shutter time.
For timing details, refer to fig. 16 through fig. 21 and fig. 22 & 23.
To use this mode:
Set function:
Trigger mode to “Edge pre-select”.
TR=1
Scanning
SC=0 to 4
V Binning
VB=0 or 1
Shutter mode to pre-set or programmable
SM=0 or 1
Shutter speed
SH=0 to 9
Programmable exp.
PE=2 to 1052
Other functions and settings
Input:
Ext. trigger. Camera Link or 12-pin Hirose TI=0, TI=1
Important notes on using this mode
1.
The minimum trigger interval >1 LVAL.
2.
Depending on the timing of the leading edge of the trigger pulse in relationship to FVAL,
accumulation will be synchronous or a-synchronous in relationship to LVAL. See chapter
6.1.1 for details.
LVAL_sync timing
Fig. 22. Pre-select trigger mode. LVAL synchronized.
1L(min.)
Trig
LVAL
EEN
XEEN
FVAL
2L
1L(max)
MCL/PMCL:(FULL:63μs, V Binning:89μs)
UV :(FULL:117.8μs, V Binning:149.6μs)
CCD exposure
Exposure time
When the trigger pulse is input while F VAL is high,
the LVAL accumulation mode is LVAL sync.