Siemens SINUMERIK 840D sl Function Manual

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Array variable for workpiece and tool measurementThe following array variable of length n is used for further input parameters that are used inthe various measurement typesType System variable Meaning ValuesREAL $AC_MEAS_INPUT[n] Measurement input parameters n = 0 ... 9The control action of the measurement input parameters is described with the measuringmethods.Selection of tool or cutting edgeThe tool and edge number of the active tool must correspond to the selected tool. When T0,D0 is selected, the active tool is calculated. If no tool is active, the tool selected by T, D iscalculated. No tool other than the selected tool may be active.Type System variable MeaningINT $AC_MEAS_T_NUMBER Selected toolINT $AC_MEAS_D_NUMBER Selected cutting edgeMeasurements with 3D probeWhen measuring with the 3D probe, the radius of the tool is already compensated withreference to the measuring point, and therefore the radius does not have to be included whencalculating the various measurement operations. This property can be defined by means ofthe following variable:Type System variable MeaningINT $AC_MEAS_TOOL_MASK Tool positionThe variable $AC_MEAS_TOOL_SCREEN can assume the following values:Value Meaning0x0 All tool lengths are considered (default setting).0x1 Tool radius is not included in the calculation0x2 Tool position in x direction (G19)0x4 Tool position in y direction (G18)0x8 Tool position in y direction (G17)0x10 Tool length is not included in the calculation0x20 Length of the active tool is included in the coordinate transformation of a position.0x40 Tool position in x direction.0x80 Tool position in y direction.0x100 Tool position in z direction.0x200 Tool length differential values are included negatively.M5: Measurement8.5 Setting zeros, workpiece measuring and tool measuringExtended Functions514 Function Manual, 10/2015, 6FC5397-1BP40-5BA3