Siemens SINUMERIK 840D sl Programming Manual page 160

Protection zones
4.3 Checking for protection zone violation, working area limitation and software limits
N10 def real _STARTPOS[3]
N20 def real _MOVDIST[3]
N30 def real _DLIMIT[5]
N40 def real _MAXDIST[3]
N50 def int _SB
N60 def int _STATUS
N70 cprotdef(2, true, 0)
N80 g17 g1 x–y0
N90 g3 i2 x2
N100 i–x–
N110 execute(_SB)
N120 cprotdef(4, false, 0)
N130 g17 g1 x0 y15
N140 x10
N150 y25
N160 x0
N170 y15
N180 execute(_SB)
N190 nprotdef(3, false, 0)
N200 g17 g1 x10 y5
N210 x25
N220 y15
4-10
;Tool-related protection zone
;workpiece-related protection zone
;workpiece-elated protection zone
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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