Siemens SINUMERIK 828D Programming Manual page 269

Note
MEASA
deletion of distance-to-go can be programmed as a synchronized action.
If the measuring task with
will only be available in the machine coordinate system.
Measurement results for MEASA, MEAWA
The results of measurements are available under the following system variables:
● In the machine coordinate system:
$AA_MM1[<axis>]
...
$AA_MM4[<axis>]
● In the workpiece coordinate system:
$AA_WM1[<axis>]
...
$AA_WM4[<axis>]
Note
No internal preprocessing stop is generated when these variables are read. A preprocessing
stop must be programmed with
values will otherwise be read in.
Geometry axes/Transformations
If axial measurement is to be started for a geometry axis, the same measuring job must be
programmed explicitly for all remaining geometry axes. The same applies to axes involved in
a transformation.
Example:
N10 MEASA[Z]=(1,1) MEASA[Y]=(1,1) MEASA[X]=(1,1) G0 Z100
or
N10 MEASA[Z]=(1,1) POS[Z]=100
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
4.8 Extended measuring function (MEASA, MEAWA, MEAC) (option)
cannot be programmed in synchronized actions. As an alternative,
MEAWA
Measured value of programmed measuring system on trigger
event 1
...
Measured value of programmed measuring system on trigger
event 4
Measured value of programmed measuring system on trigger
event 1
...
Measured value of programmed measuring system on trigger
event 4
is started from synchronized actions, the measured values
at the appropriate position in the program. False
STOPRE
Special Motion Commands
plus the
MEAWA
269