User`s manual

32 PRELIMINARY Linea 2K, 4K, 8K and 16K Camera User's Manual
03-032-20206-01 Teledyne DALSA
The camera can grab images in one of three ways. You determine the three imaging modes using a
combination of the Exposure Mode parameters (including I/O parameters), Exposure Time and Line Rate
parameters.
Description
Line Rate
Exposure Time
Trigger Source
(Sync)
Internal line rate and exposure time
Internal, programmable
Internal programmable
Internal
External line rate and exposure time
Controlled by EXSYNC
pulse
External (EXSYNC)
External
EXSYNC pulse controlling the line
rate. Programmed exposure time.
Controlled by EXSYNC
pulse
Internal programmable
External
Figure 13. Exposure controls
The parameters used to select the imaging modes—trigger sources (sync), exposure time, and line rate—
are grouped together as the Camera Controls.
Camera Controls
Parameter
Description
Line Rate (in Hz)
Camera line rate in Hz. Only available when the start line trigger parameter
is disabled (Trigger Mode off).
Exposure Mode
Set the operation mode for the camera‘s exposure.
Trigger Width or Timed. Trigger Width is only available when Trigger
Mode is enabled.
Trigger Width
Uses the width of the current line trigger signal pulse to control the
exposure duration.
Timed
The exposure duration time is set using the Exposure Time feature and the
exposure starts with the Line Start event.
Exposure Time
Sets the exposure time (in microseconds). Exposure Mode feature must be
set to Timed
Exposure Modes in Detail
1. Internally Programmable Line rate and Internally Programmable Exposure Time (Default)
Line rate is the dominant factor when adjusting the line rate or exposure time. When setting the line rate,
exposure time will decrease, if necessary, to accommodate the new line rate. When adjusting the
exposure time the range is limited by the line rate.
Note: The camera will not set line periods shorter than the readout period.
GenICam parameters to set:
I / O Controls > Trigger Mode > Off
2. External Line Rate and External Exposure Time (Trigger Width)
In this mode, EXSYNC sets both the line period and the exposure time. The rising edge of EXSYNC marks
the beginning of the exposure and the falling edge initiates readout. Note: