Siemens SINUMERIK 840D sl Programming Manual page 530

Path traversing behavior
8.1 Tangential control (TANG, TANGON, TANGOF, TLIFT, TANGDEL)
Example: Tangential tracking with automatic optimization
Automatic optimization using Dist and angular tolerance.
Program code
N80 G0 C0
N100 F=50000
N110 G1 X1000 Y500
N120 TRAORI
N130 G642
N171 TRANS X–Y–
N180 TANG(C,X,Y, 1,,"P")
N190 TANGON(C, 0, 5.0, 2.0)
N210 G1 X1310 Y500
N215 G1 X1420 Y500
N220 G3 X1500 Y580 I=AC(1420) J=AC(580)
N230 G1 X1500 Y760
N240 G3 X1360 Y900 I=AC(1360) J=AC(760)
N250 G1 X1000 Y900
N280 TANGOF(C)
N290 TRAFOOF
N300 M02
Defining following axis and leading axis
TANG is used to define the following and leading axes.
A coupling factor specifies the relationship between an angle change on the tangent and the
following axis. Its value is generally 1 (default).
530
Comments
; Y1 is geometry axis 2.
; Rounding with axial tolerance.
; Automatic optimization of the
path velocity.
; Rounding (blending) distance
5 mm
; Angular tolerance, 2 degrees
; Activating tracking with the
2nd definition.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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