Siemens SINUMERIK 840D Programming Guide

1
Flexible NC programming 04.00
1.12 Control structures
1
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di
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Siemens AG 2000. All rights reserved
1-62
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
Programming example
1. Endless program
%_N_LOOP_MPF
LOOP
IF NOT $P_SEARCH
;No block search
G01 G90 X0 Z10 F1000
WHILE $AA_IM[X] <= 100
G1 G91 X10 F500
;Drilling pattern
Z–5 F100
Z5
ENDWHILE
Z10
ELSE
;Block search
MSG("No drilling during block search")
ENDIF
$A_OUT[1]=1
;Next drilling plate
G4 F2
ENDLOOP
M30
2. Production of a fixed quantity of parts
%_N_WKPCCOUNT_MPF
DEF INT WKPCCOUNT
FOR WKPCCOUNT = 0 TO 100
G01 …
ENDFOR
M30

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB