Siemens SINUMERIK 840D sl Programming Manual page 466

Motion synchronous actions
10.4 Actions in synchronized actions
Example
In this example, we want to compensate for the length of the active grinding wheel.
%_N_DRESS_MPF
FCTDEF(1,-1000,1000,-$AA_IW[V],1)
ID=1 DO FTOC(1,$AA_IW[V],3,1)
WAITM(1,1,2)
G1 V-0.05 F0.01 G91
G1 V-0.05 F0.02
...
CANCEL(1)
...
10-40
;Define function:
;Select online tool offset:
;Actual value of the V axis is the input
;value for polynomial 1; the result is
;added length 3 of the active grinding
;wheel in channel 1 as the offset value.
;Synchronization with machining channel
;Infeed movement to dress wheel
;Deselect online offset
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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