Siemens SINUMERIK 840DE sl Commissioning Manual page 632

Technologies and cycles
21.10 Measuring cycles and measurement functions
References
NCU Manual: Digital inputs / outputs
Setting the switching behavior
You set the electrical polarity of the connected probe using the following general machine data:
MD13200 $MN_MEAS_PROBE_LOW_ACTIVE
= 0
= 1
MD13210 $MN_MEAS_TYPE
= 0
Testing the probe function
You can test the switching function of the probe by manually deflecting it and checking the
following PLC interface signals:
DB 10
DBB107
To test the switching behavior and the measured value transfer, use an NC test program with,
for example, the following NC commands:
MEAS
$AC_MEA[n]
$AA_MW[axis name]
$AA_MM[axis name]
Example of a test program
Program code
%_N_PRUEF_MESSTASTER_MPF
$PATH=/_N_MPF_DIR
N00 DEF INT MTSIGNAL
N05 G17 G54 T="3D_Taster" D1
N10 M06
N15 G0 G90 X0 F150
N20 MEAS=1 G1 X100
618
Probe in the non-deflected state, 0 V default value
Probe in the deflected state, 24 V
Probe in the non-deflected state, 24 V
Probe in the deflected state, 0 V
Default value
Bit 7 Bit 6 Bit 5
Measurement with deletion of distance-to-go
Check the switching operation, n = measurement input number
Measured value of the axes in workpiece coordinates
Measured value of the axes in machine coordinates
Polarity change of the probe
Measuring type for distributed drives
Bit 4 Bit 3 Bit 2
Comment
;Testing program probe connection
;Bit memory to check the switching state
;Select tool geometry for probe
;Activate tool
;Starting position and meas. velocity
;Measurement at measuring input 1 in the
X axis
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
Bit 1 Bit 0
Probe actuated
Probe 2 Probe 1
SINUMERIK Operate (IM9)