Edge Pre-Select Trigger Mode (Eps) - JAI AT-200GE User Manual

Digital 3ccd progressive scan rgb color camera
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9.7.2 Edge Pre-select Trigger Mode (EPS)

An external trigger pulse initiates the capture, and the exposure time (accumulation time) is
the fixed shutter speed set by programmable exposure or Exposure Time Abs. The
accumulation can be automatically set either LVAL synchronous or LVAL asynchronous in
relation to FVAL and trigger timing.
The resulting video signal will start to be read out after the selected shutter time.
For timing details, refer to fig35 . through fig43 .
To use this mode:
Set function:
Important notes on using this mode
 Active Trigger pulse >2 LVAL to <1 FVAL
 Minimum Trigger interval is shown in the following table.
Mode
LVAL Sync
LVAL Async
Smearless is ON
Note: 1) On the above table, 12526L is FVAL interval in normal continuous mode
2) In the vertical binning mode, 1L is different from the normal scanning. So, the minimum
trigger interval will be different.
AT-200GE
Exposure mode
Pixel format
Partial scan
Vertical binning
Shutter mode
GPIO setting
Minimum trigger interval
1252L + 3L
Exposure time + 1252L + 3L
Smearless time(141L) + Maximum exposure time +1252L + 3L
Fig.41
Edge Pre-select.
- 41 -
Edge pre-select
RGB8, 10V1, 10V2
Fast dump ON, ROI
Binning vertical ON
Programmable, Exposure Time Abs

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