Siemens SINUMERIK 840D sl Programming Manual page 249

Program code
N30 G1 Z... RND=2 FRC=50
N40 G3 X... Z... I... K...
...
Example 4: Modal rounding to deburr sharp workpiece edges
Program code
...
N30 G1 X... Z... RNDM=2 FRCM=50
N40...
N120 RNDM=0
...
Example 5: Apply technology from following block or previous block
● MD20201 Bit 0 = 0: Derived from following block (default setting!)
Program code
N10 G0 X0 Y0 G17 F100 G94
N20 G1 X10 CHF=2
N30 Y10 CHF=4
N40 X20 CHF=3 FRC=200
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 G95 F3 FRC=1
...
M02
● MD20201 Bit 0 = 1: Derived from previous block (recommended setting!)
Program code
N10 G0 X0 Y0 G17 F100 G94
N20 G1 X10 CHF=2
N30 Y10 CHF=4 FRC=120
N40 X20 CHF=3 FRC=200
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Comment
; Activate modal rounding.
Radius of rounding: 2 mm
Feedrate for rounding: 50 mm/min
; Deactivate modal rounding.
Comment
; Chamfer N20-N30 with F=100 mm/min
; Chamfer N30-N40 with FRC=200 mm/min
; Chamfer N40-N60 with FRCM=50 mm/min
; 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 F=100 mm/min (de-
selection of FRCM)
; Modal rounding N100-N120 with G95 FRC=1 mm/rev
Comment
; Chamfer N20-N30 with F=100 mm/min
; Chamfer N30-N40 with FRC=120 mm/min
; Chamfer N40-N60 with FRC=200 mm/min
Fundamentals
2.9 Motion commands
249