User`s manual

6M3P Camera User’s Manual 26
DALSA 03-32-10005-02
!
Example: Setting the camera to 2x2 binning mode
Write Binning Register with 2x2 mode
Command Value
Binary 1000 0010 **** **01
Hex 82h **h
Note: The register containing the Binning bits also controls other configuration data. All
bits must be set appropriately.
Whenever the camera is in binning mode, the BIN LED on the right side of the rear
cover will light to indicate the binning mode.
3.9 Triggering, Integration, and Frame Rate
Overview
Image capture triggering, integration, and frame rate are closely related.
• With electronic shuttering, integration time can be less than 1/frame rate, but it can
never be greater than 1/frame rate.
• You can program fixed integration and frame rates (or use defaults) and let the
camera “free run.”
• You can program fixed integration time and supply a (asynchronous) trigger signal
to control frame rate, either by toggling a bit or by supplying a TTL pulse on the SMA
connector. This is referred to as “Programmed Integration/External Trigger Mode.”
• You can also have the camera integrate as long as an asynchronous TTL pulse is held
high. This pulse will therefore control both integration time and frame rate. This is
also known as “External Integrate Mode.”
For a given frame rate, the maximum integration time is limited to the frame period less
an overhead factor required for proper operation of the CCD. Maximum integration time
is defined by this equation:
Max Integration Time = (1/Frame Rate) – Readout Time
This equation is valid for all binning modes, free running, external trigger and external
integrate modes.
Note that binning mode impacts the Read Time and limits Integration Time.
WARNING: Do not set integration time higher than the limits of the equation above.
Unpredictable operation may result
Table 13: Integration/Frame Rate Limits
Binning Read out
Time (mS)
Max
Frame
Rate
Data
Rate
(MHz)
Integration
Value (µs)
Max Integration
Register
1 x 1 359.50 2.75 20 327686 050006h