Siemens SINUMERIK 840D sl Programming Manual page 192

Special Motion Commands
5.8 Extended measuring function (MEASA, MEAWA, MEAC) (option)
Parameters
MEASA
MEAWA
MEAC
Axis
Mode
TE 1...4
Measurement
memory
Example of measuring with delete distance-to-go in mode 1
(evaluation in chronological sequence)
a) with 1 measuring system
...
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:
5-28
Measurement with deletion of distance-to-go
Measurement without deletion of distance-to-go
Continuous measurement without deleting distance-to-go
Name of channel axis used for measurement
Two-digit setting for operating mode consisting of
Measuring mode (ones decade) and
0: Mode 0: Cancel measuring job
1: Mode 1: Up to 4 different trigger events can be activated
concurrently. Trigger events
2: Mode 2: Up to 4 trigger events can be activated consecutively
3: Mode 3: Up to 4 trigger events can be activated consecutively
but no monitoring of trigger event 1
on start (alarms 21700/21703 are suppressed)
Note: Mode 3 not possible with MEAC
Measuring system (tens' decade)
0 or no setting: active measuring system
1: Measuring system 1
2: Measuring system 2
3: Both measuring systems
Trigger event
1: rising edge, probe 1
-1: falling edge, probe 1
2: rising edge, probe 2
-2: falling edge, probe 2
Number of FIFO (circulating storage)
;Measurement in mode 1 with active
;measuring system. Wait for measuring
;signal with rising/falling edge from
;probe 1 on travel path to X = 100.
;Preprocessing stop
;Check success of measurement.
;Store measured value acquired on
;first programmed trigger event
;(rising edge)
;Store measured value acquired on
;second programmed trigger event
;(falling edge)
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Job planning