Exposuretime - IAI SP-20000C-USB User Manual

GenICam Name
Exposure Mode
Trigger Mode
Trigger Option
7.2.2

ExposureTime

This command is effective only when Exposure Mode is set to Timed. It is for setting exposure
time. The setting step for exposure time is 1 μsec per step.
Minimum:
Maximum:
Note: The actual exposure time is added 289µsec against the setting exposure value due to the
sensor characteristics. However, the exposure active signal to be output, is not the actual
exposure time but the setting exposure value.
The sensor exposure time = Exposure + 289µs
Note:
In free-running mode with the Frame Start Trigger set to OFF, the maximum setting value of the
exposure time is limited by the frame rate setting.
Although 8 seconds is the maximum frame rate setting, the upper limit of the exposure time setting
value is 7,999,750 µsec, which is 250 µsec shorter than the maximum.
In EPS trigger operation, where Exposure Time is not influenced by the frame rate setting, the
upper limit is 8 seconds.
However, please note the following:
For the sensor used in the SP-20000-USB, the black level tends to increase based on the exposure
time and the temperature of the sensor. The SP-20000-USB compensates this black shift inside the
camera but the following are the maximum ambient temperatures which guarantee the
performance at 8 sec of exposure time.
SP-20000M-USB: Up to 25ºC of ambient temperature
SP-20000C-USB: Up to 15ºC of ambient temperature
Table – 28 Associated GenICam register information
GenICam Name
Exposure Mode
Exposure Time
Exposure Time Raw
SP-20000M-USB / SP-20000C-USB
Access
R/W
R/W
R/W
10 μsec (Note: Actual exposure time is 299µsec)
8 seconds （When Frame Start Trigger Mode is ON）
Access
Off
R/W Timed
TriggerWidth
R/W 10 to 8000000 [us]
R/W 10 to 8000000 [us]
- 45 -
Values Category
Off
Timed
TriggerWidth
Off
On
Off
PIV
Values
Acquisition Control
Acquisition Control
JAI-Custom
Category
Acquisition Control
Acquisition Control
Acquisition Control