Spyder 3 CL User's Manual PRELIMINARY 49
DALSA 03-032-20008-03
Related Commands: ssf, set
Example:
sem 3
Table 12: Spyder 3 CL Exposure Modes
Programmable Line Rate Programmable Exposure Time
Mode SYNC PRIN Description
2
Internal Internal Yes Yes Internal frame rate and exposure time.
Exposure control enabled (ECE).
3
External Internal No No Maximum exposure time. Exposure
control disabled (ECD).
4
External Internal No No Smart EXSYNC. ECE.
5
External External No No External sync, external pixel reset.
ECE.
6
External Internal No Yes Fixed integration time. ECE.
7
Internal Internal Yes No Internal line rate, maximum exposure
time. ECD.
8
Internal Internal No Yes Maximum line rate for exposure time.
ECE.
Note: When setting the camera to external signal modes, EXSYNC and/or PRIN must be
supplied.
Exposure Modes in Detail
Mode 2: Internally Programmable Line Rate and Exposure Time (Factory
Setting)
Mode 2 operates at a maximum line rate and exposure time.
• When setting the line rate (using the
ssf command), exposure time will be reduced,
if necessary, to accommodate the new line rate. The exposure time will always be set
to the maximum time (line period – line transfer time – pixel reset time) for that line
rate when a new line rate requiring reduced exposure time is entered.
• When setting the exposure time (using the
set command), line time will be
increased, if necessary, to accommodate the exposure time. Under this condition, the
line time will equal the exposure time + line transfer time.
Example 1: Exposure Time less than Line Period
Programmable Period (
set command)
Line Period
Readout
CR
Exposure Time
CR=Charge Reset
Line Period
Programmable Period
CR
Exposure Time
Programmable Period (ssf command)
Readout
Programmable Period
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