Siemens SINUMERIK 840D sl Commissioning Manual page 538

Configuring cycles
22.8 Measuring cycles and functions
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
532
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
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 5 Bit 4 Bit 3
Comment
;Testing program probe connection
;Bit memory to check the switching state
;Select tool geometry for probe
;Activate tool
;Starting position and meas. velocity
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
Bit 2 Bit 1
Probe actuated
Probe 2
SINUMERIK Operate (IM9)
Bit 0
Probe 1