Falcon 4M Camera Manual
DALSA 03-032-20044-01
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readout in parallel the Falcon 4M60 camera is capable of reaching 60fps. A timing
diagram helps to explain this mode of operation.
Concurrent Mode Timing Diagram
In concurrent mode, a low-to-high transition in the EXSYNC signal starts the integration
time, and a high-to-low transition in the EXSYNC signal starts the readout of image data.
As your frame period approaches the readout period, by reducing the Waiting time, the
Falcon 4M60 camera approaches its maximum frame rate of 60 fps.
In non-concurrent mode the integration and readout period do not overlap. While this
does impact your overall frame rate, the main benefit is that in non-concurrent mode you
eliminate or minimize imaging artifacts. DALSA recommends that, when possible,
operate the 4M60 camera in non-concurrent mode.
A timing diagram helps to explain the non-concurrent mode operation.
Non-concurrent Mode Timing Diagram
In non-concurrent mode, a low-to-high transition in the EXSYNC signal starts the
integration time, and a high-to-low transition in the EXSYNC signal starts the readout of
image data. This is the same as in concurrent mode. The difference between these two
modes is that you do not perform your next low-to-high transition of EXSYNC until
readout has completed. The waiting period can be reduced to 0 seconds by starting the
low-to-high transition immediately after readout is complete. The readout time is a fixed
amount of time that is dependant upon the mode of operation of the camera, but is
typically around 16.6 ms.
