Siemens SINUMERIK 828D Programming Manual page 271

Note
FIFO contents can be read only once from the circulating storage. If these measured data
are to be used multiply, they must be buffered in user data.
If the number of measured values for the FIFO memory exceeds the maximum value defined
in machine data, the measurement is automatically terminated.
An endless measuring process can be implemented by reading out measured values
cyclically. In this case, data must be read out at the same frequency as new measured
values are read in.
Recognized programming errors
The following programming errors are detected and indicated appropriately:
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● Inconsistent measuring task with GEO axes
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
4.8 Extended measuring function (MEASA, MEAWA, MEAC) (option)
/ programmed with
MEASA MEAWA
Example:
N01 MEAS=1 MEASA[X]=(1,1) G01 F100 POS[X]=100
/ with number of parameters <2 or >5
MEASA MEAWA
Example:
N01 MEAWA[X]=(1) G01 F100 POS[X]=100
/ with trigger event not equal to 1/ -1/ 2/ -2
MEASA MEAWA
Example:
N01 MEASA[B]=(1,1,3) B100
/ with invalid mode
MEASA MEAWA
Example:
N01 MEAWA[B]=(4,1) B100
/ with trigger event programmed twice
MEASA MEAWA
Example:
N01 MEASA[B]=(1,1,-1,2,-1) B100
/ and missing GEO axis
MEASA MEAWA
Example:
N01 MEASA[X]=(1,1) MEASA[Y]=(1,1) G01 X50 Y50 Z50 F100 ;GEO axis X/Y/Z
Example:
N01 MEASA[X]=(1,1) MEASA[Y]=(1,1) MEASA[Z]=(1,1,2) G01 X50 Y50 Z50 F100
/ in the same block
MEAS MEAW
Special Motion Commands
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