Siemens SINUMERIK 840D sl Function Manual

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8.5.5.3 Measurement of tool lengths with zoom-in function (measurement type 22)Tool length with zoom-in functionTool length measurement with zoom-in function ($AC_MEAS_TYPE = 22)If a zoom-in function is available on the machine, it can be used to determine the tooldimensions.][][Figure 8-20 Measurement of tool lengths with zoom-in functionThe values of the following variables are evaluated for measurement type 22:Input variable Description$AC_MEAS_VALID Validity bits for input variables$AA_MEAS_POINT1[axis] Measuring point 1 for all channel axes$AC_MEAS_P1_COORD Coordinate system of the measuring point *$AA_MEAS_SETPOINT[axis] Zoom positions x and z must be specified$AC_MEAS_SET_COORD Coordinate system of setpoint *$AC_MEAS_ACT_PLANE Calculated as active plane unless otherwise specified *$AC_MEAS_FRAME_SELECT Calculated as additive frame unless otherwise specified *$AC_MEAS_T_NUMBER Calculated as active T unless otherwise specified (T0) *$AC_MEAS_D_NUMBER Calculated as active D unless otherwise specified (D0) *$AC_MEAS_TYPE 22* optionalThe following output variables are written for measurement type 22:Output variable Description$AC_MEAS_RESULT[0] Tool length in x$AC_MEAS_RESULT[1] Tool length in y$AC_MEAS_RESULT[2] Tool length in z$AC_MEAS_RESULT[3] Tool length L1$AC_MEAS_RESULT[4] Tool length L2$AC_MEAS_RESULT[5] Tool length L3M5: Measurement8.5 Setting zeros, workpiece measuring and tool measuringExtended FunctionsFunction Manual, 10/2015, 6FC5397-1BP40-5BA3 563