Siemens SINUMERIK 840D sl Programming Manual page 234

Special motion commands
4.2 Spline interpolation (ASPLINE, BSPLINE, CSPLINE, BAUTO, BNAT, BTAN, EAUTO, ENAT, ETAN, PW,
SD, PL)
Example 2: C spline, zero curvature at the start and at the end
Program code
N10 G1 X0 Y0 F300
N15 X10
N20 BNAT ENAT
N30 CSPLINE X20 Y10
N40 X30
N50 X40 Y5
N60 X50 Y15
N70 X55 Y7
N80 X60 Y20
N90 X65 Y20
N100 X70 Y0
N110 X80 Y10
N120 X90 Y0
N130 M30
Example 3: Spline interpolation (A spline) and coordinate transformation (ROT)
Main program:
Program code
N10 G00 X20 Y18 F300 G64
N20 ASPLINE
N30 CONTOUR
N40 ROT Z-45
N50 G00 X20 Y18
234
Comment
; Approach starting point.
; Activate interpolation type A spline.
; First subprogram call.
; Coordinate transformation: Rotation of the
WCS through -45° around the Z axis.
; Approach contour starting point.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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