Siemens SINUMERIK 840DE sl Commissioning Manual

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ReferencesNCU Manual: Digital inputs / outputsSetting the switching behaviorYou set the electrical polarity of the connected probe using the following general machine data:MD13200 $MN_MEAS_PROBE_LOW_ACTIVE Polarity change of the probe= 0 Probe in the non-deflected state, 0 V default valueProbe in the deflected state, 24 V= 1 Probe in the non-deflected state, 24 VProbe in the deflected state, 0 VMD13210 $MN_MEAS_TYPE Measuring type for distributed drives= 0 Default valueTesting the probe functionYou can test the switching function of the probe by manually deflecting it and checking thefollowing PLC interface signals:DB 10Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0DBB107Probe actuatedProbe 2 Probe 1To test the switching behavior and the measured value transfer, use an NC test program with,for example, the following NC commands:MEAS Measurement with deletion of distance-to-go$AC_MEA[n] Check the switching operation, n = measurement input number$AA_MW[axis name] Measured value of the axes in workpiece coordinates$AA_MM[axis name] Measured value of the axes in machine coordinatesExample of a test programProgram code Comment%_N_PRUEF_MESSTASTER_MPF$PATH=/_N_MPF_DIR ;Testing program probe connectionN00 DEF INT MTSIGNAL ;Bit memory to check the switching stateN05 G17 G54 T="3D_Taster" D1 ;Select tool geometry for probeN10 M06 ;Activate toolN15 G0 G90 X0 F150 ;Starting position and meas. velocityN20 MEAS=1 G1 X100 ;Measurement at measuring input 1 in theX axisTechnologies and cycles21.10 Measuring cycles and measurement functionsSINUMERIK Operate (IM9)618 Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1