Siemens SINUMERIK 840D sl Programming Manual page 470

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Motion synchronous actions

10.4 Actions in synchronized actions

The program environment affects the positioning travel of the positioning axis

(no G function in the action part of the synchronized action)

N110 G0 X0 Z0

N120 WAITP(X)

N130 ID=1 WHENEVER $R==1 DO POS[X]=10

N150 G71 Z10 F10

N160 G70 Z10 F10

N170 G71 Z10 F10

G71 in the action part of the synchronized action clearly determines the positioning travel of

the positioning axis (metric), whatever the program environment.

N110 G0 X0 Z0

N120 WAITP(X)

N130 ID=1 WHENEVER $R==1 DO G71 POS[X]=10

N150 G71 Z10 F10

N160 G70 Z10 F10

N170 G71 Z10 F10

If you do not want the axis motion to start at the beginning of the block, the override for the

axis can be held at 0 until the appropriate time from a synchronized action.

$A_IN[1]==0 DO $AA_OVR[W]=0

G01 X10 Y25 F750 POS[W]=1500

;The positioning axis is halted as long as digital input 1 = 0

;Z=10 mm X=10 mm

;Z=254 mm X=254 mm

;Z=10 mm X=10 mm

;Z=254 mm X=10 mm (X positioned

;always to 10 mm)

;Z=10 mm X=10 mm

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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