Siemens Sinumerik 840D sl Programming Manual page 245

Program code
N50 RNDM=2 FRCM=50
N60 Y20
N70 X30
N80 Y30 CHF=3 FRC=100
N90 X40
N100 Y40 FRCM=0
N110 S1000 M3
N120 X50 CHF=4 G95 F3 FRC=1
N130 Y50
N140 X60
...
M02
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
10.12 Chamfer, rounding (CHF, CHR, RND, RNDM, FRC, FRCM)
Comment
; Modal rounding N60-N70 with FRCM=50 mm/min
; Modal rounding N70-N80 with FRCM=50 mm/min
; Chamfer N80-N90 with FRC=100 mm/min
; Modal rounding N90-N100 with FRCM=50 mm/min
; Modal rounding N100-N120 with F=100 mm/min
; Chamfer N120-N130 with G95 FRC=1 mm/rev
; Modal rounding N130-N140 with F=3 mm/rev
Motion commands
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