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GO-5100M-USB / GO-5100C-USB
Delayed Readout [Acquisition Transfer Start]
Delayed readout enables images captured by a Frame Start trigger command to be stored inside
the camera and read out on demand at a later time using Acquisition Transfer Start trigger. This can
be especially useful when multiple cameras need to be triggered at the same time, but simultaneous
readout of all images would overwhelm the available
shared
bandwidth. The delayed readout buffer
can hold up to 8 frames in 8-bit mode or 4 frames in 10-bit or 12-bit modes.
For details, see “Trigger Control” (page 26).
ALC (Automatic Level Control) Function
The ALC (automatic level control) function combines the automatic gain control (AGC/Auto Gain
Control) and automatic exposure control (ASC/Auto Shutter Control) functions, and is capable of
handling various changes in brightness.
The function operates as follows in response to changes in brightness.
Change from bright to dark: ASC
AGC
Change from dark to bright: AGC
ASC
Change in brightness
Fixed at max. ASC value
Fixed at min. ASC value
Fixed at min. gain value
AGC
Max
AGC operation
Max. to min. (user specified)
Operation during change
from dark to bright
Operation during change
from bright to dark
ASC operation
Max. to min. (user specified)
ASC (auto shutter) operation
AGC operation
Dark
Bright
■
To use the ALC function
Set [Gain Auto] or [Exposure Auto] or both to [Continuous] mode. Configure the minimum value,
maximum value, etc. for AGC and ASC under [JAI Custom Control ALC].
The target video levels for AGC and ASC are configured in [ALC Reference]. For example, when [ALC
Reference] is set to 100%, video levels will be maintained at 100% for AGC and ASC.
■
Automatic gain level control
Set [Gain] to [Continuous].
