Exposure Start and Exposure Time Control112 Basler sprint Color Cameras4.3.2 Example of Calculating the Maximum AllowedLine Rate / Minimum Line PeriodAssume that you are working with an spL4096-70kc. Also assume that the camera is set for theRaw line acquisition mode, 80 MHz Camera Link clock speed, and 8 tap 8 bit video data outputmode. The AOI starting pixel is set to 1249, AOI length is set to 2400, and the exposure time is setto 4 μs. The stamp feature is disabled.First, you must determine the max segment AOI pixels. With the current settings 800 AOI pixelswould be included in segment 1 and 1600 AOI pixels would be included in segment 2. In this case,the max segment AOI pixels is 1600.Next, use the four formulas to calculate the maximum allowed line rate:Formula 1:Max Lines / s = 188679Formula 2:Max Lines / s = 175438NoteThe above formulas for determining the maximum allowed line rate will applyto most camera settings. For some camera settings, however, the maximumallowed line acquisition rate may be lower than suggested by the formulas. Wetherefore recommend to generally determine the maximum allowed lineacquisition rate via the CCT+ (see Section 7.1 on page 230) or the line periodCSR (see page 245).Bear these restrictions in mind when considering the following example.Max Lines / s 1Exposure time in s .0000013+--------------------------------------------------------------------------------=Max Lines / s 1.000004 .0000013+-----------------------------------------------------=Max Lines / s 160000000 n×Max Seg AOI Pixels 224+---------------------------------------------------------------------=Max Lines / s 160000000 2×1600 224+---------------------------------------=
