5
Special Motion Commands 04.00
5.6 Measurements with touch tri
er
robe
MEAS
MEAW
5
840D
NCU 571
840D
NCU 572
NCU 573
810D
CCU 2
840Di
ï›™
Siemens AG 2000. All rights reserved
5-174
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
5.6 Measurements with touch trigger probe, MEAS, MEAW
Programming
MEAS=
±
1
MEAS=
±
2
G… X… Y… Z…
G… X… Y… Z…
(+1/+2 measurement with deletion of
distance-to-go and rising edge)
(–1/–2 measurement with deletion of
distance-to-go and falling edge)
MEAW=
±
1
MEAW=
±
2
G… X… Y… Z…
G… X… Y… Z…
(+1/+2 measurement without deletion of
distance-to-go and rising edge)
(–1/–2 measurement without deletion of
distance-to-go and falling edge)
Explanation of the commands
MEAS=
±
1
Measurement with probe 1 at measuring input 1
MEAS=
±
2*
Measurement with probe 2 at measuring input 2
MEAW=
±
1
Measurement with probe 1 at measuring input 1
MEAW=
±
2*
Measurement with probe 2 at measuring input 2
*
Max. of two inputs depending on configuration level
Sequence
The positions coinciding with the switching edge of
the probe are acquired for all axes programmed in
the NC block and written for each specific axis to the
appropriate memory cell. A maximum of 2 probes
can be installed.
Measurement result
The measurement result is available under the
following variables for these axes:
•
Under
$AA_MM[axis]
in the machine
coordinate system
•
Under
$AA_MW[axis]
in the workpiece
coordinate system
No internal preprocessing stop is generated when
these variables are read.
A preprocessing stop must be programmed with
STOPRE at the appropriate position in the program.
The system will otherwise read false values.
Z
X