Operation and FeaturesBASLER A102k 3-11DRAFT3.2.2.1 Recommendations for Controlling Exposurein Free-run Programmable ModeWhen using the free-run programmable mode to control exposure, several general guidelinesmust be followed:• The minimum setting for Timer 1 is 15 μs.• The minimum setting for Timer 2 is 15 μs.• In free-run mode, the period of the internal control signal is equal to the sum of the Timer 1setting plus the Timer 2 setting.• If the AOI and Vertical Binning features are not being used, the sum of the Timer 1 settingplus the Timer 2 must be greater than 67,500 μs.• If the AOI feature is being used, the sum of the Timer 1 setting plus the Timer 2 setting mustbe greater than 1/Maximum Frame Rate where the maximum frame rate is determined by theformula in Section 3.8.2.1 on page 3-26.• If the Vertical Binning feature is being used, the sum of the Timer 1 setting plus the Timer 2setting must be greater than 1/Maximum Frame Rate where the maximum frame rate isdetermined by the formula in Section 3.8.2.2 on page 3-26. If you are using the camera configuration tool CCT+ to set up the free-run program-mable mode, you will enter a frame rate and an exposure time. Once you have en-tered these numbers, the value for Timer 1 and Timer 2 will be automaticallycalculated and sent to the camera. If one of the guidelines listed above is violated,an error message will appear. When the camera is operating in free-run, external control of exposure start is notpossible. In free-run, the camera generates all control signals internally. The cameradetermines when each exposure will start and controls the length of the exposuretime.
