Siemens SINUMERIK 840D sl Programming Manual page 297

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Examples
Example 1: Axial measurement with deletion of distance-to-go in mode 1 (evaluation in
chronological sequence)
a) with 1 measuring system
Program code
...
N100 MEASA[X]=(1,1,-1) G01 X100 F100
N110 STOPRE
N120 IF $AC_MEA[1]==FALSE GOTOF END
N130 R10=$AA_MM1[X]
N140 R11=$AA_MM2[X]
N150 END:
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
4.8 Extended measuring function (MEASA, MEAWA, MEAC) (option)
Trigger event to initiate measurement
Type: INT
Range of values: -2, -1, 1, 2
Significance:
(+)1 Rising edge of probe 1
-1 Falling edge of probe 1
(+)2 Rising edge of probe 2
-2 Falling edge of probe 2
Number of FIFO (circulating storage)
Special motion commands
Comments
; Measuring in mode 1 with active
measuring system. Wait for
measuring signal with
rising/falling edge from probe 1
for travel path to X=100.
; Preprocessing stop
; Check that the measurement was
successful.
; Save measured value acquired at
the first programmed trigger event
(rising edge).
; Save measured value acquired at
the second programmed trigger
event (falling edge).
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