Operation and Features
Basler L301kc
3-5
DRAFT
3.2.2 Free Run
In
free-run
, no ExSync signal is required. The camera generates a continuous internal control
signal based on two programmable parameters: “Timer 1” and “Timer 2.” Timer 1 determines how
long the internal signal will remain low and Timer 2 determines how long the signal will remain
high. The control signal period is equal to Timer 1 plus Timer 2.
When the camera is operating in free-run, the length of the control signal period determines the
camera’s line rate.
When the camera is operating in free-run, it exposes and outputs lines continuously.
In free-run, two modes of operation are available: edge-controlled and programmable.
• In
free-run
,
edge-controlled mode
, the pixels are exposed and charge is accumulated over
the full period of the internal control signal (rising edge to rising edge). The falling edge of the
control signal is irrelevant. The line is read out and transferred on the rising edge of the inter-
nal control signal. See Figure 3-6.
Figure 3-6: Free-run, Edge-controlled Mode
• In
free-run
,
programmable mode
, the pixels are exposed and charge is accumulated when
the internal control signal is low. The line is read out and transferred on the rising edge of the
internal control signal. See Figure 3-7.
In this mode, the exposure time can be programmed as desired by varying the setting of the
“Timer 1” parameter.
Figure 3-7: Free-run, Programmable Mode
Maximum line rate
1
Minimum control signal period
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Summary of Contents for L301kc
Page 1: ...Basler L301kc USER S MANUAL Document Number DA00051806 Release Date 13 July 2007...
Page 4: ......
Page 14: ...Introduction 1 6 Baslert L301kc DRAFT...
Page 20: ...Camera Interface 2 6 Basler L301kc DRAFT Figure 2 3 Camera Frame Grabber Interface...
Page 102: ...Configuring the Camera 4 32 Basler L301kc DRAFT...
Page 116: ...Troubleshooting 6 10 Basler L301kc DRAFT...
Page 118: ...Revision History ii Basler L301kc DRAFT...
Page 120: ...Feedback iv Basler L301kc DRAFT...
Page 124: ...Index viii Basler L301kc DRAFT...