Reset Continuous (Rct) Trigger Mode - IAI cm-140ge User Manual

CM-140GE / -RA/-UV / CB-140GE / -RA

8.4.4 Reset Continuous (RCT) trigger mode

The RCT mode operates like EPS (edge preselect) mode with smearless function. An
external trigger pulse will immediately stop the video read out, reset and restart the
exposure, then operate as normal mode until the next trigger. After the trigger pulse is
input, a fast dump read out is performed. In the CM-140GE/ CB-140GE, this period is
10.71ms which is 350L and in the CM-140GE-UV, it is 20.615ms for the same 350L.. The
exposure time is determined by the pre-set shutter speed. If no further trigger pulses are
applied, the camera will continue in normal mode and the video signal is not output. The
fast dump read out has the same effect as "smearless read out". Smear over highlight areas
is reduced for the trigger frame. The reset continuous trigger mode makes it possible to use
triggering in conjunction with a lens with video controlled iris.
To use this mode:
Set function:
Input:
Important notes on using this mode
Trigger pulse >2 LVAL to <1 FVAL)

The following table shows minimum trigger interval in asynchronous accumulation mode

Full scan
2/3 Partial
1/2 Partial
1/4 Partial
1/8 Partial
1/2 V Binning
Trigger
CCD Exposure
EEN
FVAL
DVAL
Note: When PE is set at 1052 or the shutter is set at OFF, EEN is always HIGH.
Trigger mode
Scanning
Vertical binning
Other functions and settings
External trigger
350L :10.71ms(GE)
20.615ms(UV )
GE:(Full:63μs ～ 94μs,V Binning 89μs ～ 126μs)
UV:(Full:117.8μs ～ 176.7µs, V Binning 149.6µs ～ 224.4µs)
Fig.30. RCT mode timing
RCT
Full, Partial
ON / OFF (CM-140GE only)
GigE interface or 12-pin Hirose
1411 L
1174 L
1058 L
884 L
798 L
886 L
2L ～ 3L
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