Operation and Features
3-6
Basler L301kc
DRAFT
You can set the camera to operate in free-run using either the Camera Configuration Tool Plus
(see Section
) or binary commands (see Section
).
With the Camera Configuration Tool Plus, you use the Exposure Time Control Mode setting in the
Exposure parameter group to set the camera for free-run and to select the edge-controlled or
programmable exposure time control mode. If you choose to operate the camera in free-run, the
configuration tool will require you to enter a line rate; if you are using the programmable mode,
you must also enter an exposure time. The configuration tool will automatically set the Timer 1 and
Timer 2 parameters based on the values that you enter on the Exposure Tab.
With binary commands, you must use the Exposure Time Control Mode command to select the
free-run, edge-controlled or free-run, programmable mode (see Section
). You must also
use the Timer 1 command to set Timer 1 and the Timer 2 command to set Timer 2.
3.2.2.1 Recommendations for Free-run Controlled Operation
When using free-run controlled operation, a few general guidelines must be followed:
• In the free-run mode, the period of the internal control signal is equal to the sum of Timer 1
plus Timer 2.
• The sum of Timer 1 plus Timer 2 must be greater than 1/ Maximum line rate.
(Depending on whether spatial correction is used, the maximum line rate is either 8.0 kHz
(with spatial correction) or 9.2 kHz (without spatial correction)).
• The minimum line rate must not be lower than 1 kHz.
• The Timer 1 minimum (minimum exposure time) is 0.125 µs.
• The Timer 2 is minimum 4 µs.
3.2.3 Max Line Rate Exceeded Error Condition
The camera’s maximum line rate is 8.0 kHz with spatial correction enabled or 9.20 kHz without
spatial correction enabled. The maximum line rate can be exceeded, by:
• cycling the ExSync signal too quickly during ExSync controlled operation (see Section
• operating in Free-run with the sum of Timer 1 plus Timer 2 set too low (see Section
)
If the camera’s maximum line rate is exceeded, the camera will enter an error condition and the
camera status indicator (see Section
) will show that the error is present. Also, one or more of
the lines in the sensor will begin to output a value of zero for all of the pixels in the line. If at least
one of the lines in the sensor is outputting a value of zero for all pixels, then the camera should
be regarded as in the max line rate exceeded error condition. The error condition can be cleared
by lowering the line rate below the maximum and then reading the camera’s status. Reading the
status resets the error condition.
L
When using binary commands to set Timer 1 and Timer 2, the timer values are de-
termined by a multiplier. See Sections
for more details before you
attempt to set these timers with binary commands.
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...