Siemens SINUMERIK 840D sl Function Manual

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Measurement (M5)8.4 Setting zeros, workpiece measuring and tool measuringExtended Functions660 Function Manual, 01/2008, 6FC5397-1BP10-3BA08.4.5.4 Measuring a tool length with stored or current position (measurement type 23)Tool length with stored / current positionTool length measurement with stored or current position ($AC_MEAS_TYPE = 23)In the case of manual measurement, the tool dimensions can be determined in the X and Zdirections. From the known position of the● Tool carrier reference point and the● Workpiece dimensionsShopTurn calculates the tool offset data.] ][[][Figure 8-24 Measurement of a tool length with a stored or actual positionThe values of the following input variables are evaluated for measurement type 23:Input variable Description$AC_MEAS_VALID Validity bits for input variables$AA_MEAS_POINT1[axis] Current or marked position$AC_MEAS_P1_COORD Coordinate system of the measuring point *$AA_MEAS_SETPOINT[axis] Setpoint position (minimum one geo axis must be specified)$AC_MEAS_SET_COORD Coordinate system of setpoint *$AC_MEAS_ACT_PLANE Calculated as active plane unless otherwise specified *$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_TOOL_MASK Tool position, radius *$AC_MEAS_DIR_APPROACH Approach direction *$AC_MEAS_INPUT[0] = 1 The calculated tool lengths are written to the data management *$AC_MEAS_TYPE 23* optional