Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 621)

L-force | PLC Designer
General Editors
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DMS 4.1 EN 03/2011 TD29 619
Example
Stair profile rounded with splines:
N0 G0 X0 Y0 Z0 F100 (Start position)
N10 G5 X20 Y0
N20 G5 X20 Y20
N30 G5 X40 Y20
N40 G5 X40 Y40
Abb. 329 Treppenprofil mit Splines verrundet
This illustrates how the system defines the start and end tangents of every single
spline section: At the start of the spline the start tangent depends, whether elements
with tool meshing are exist in advance (G1, G2, G3, G8, G9) or not (e.g. G0, G92, M). In
the first case their end tangents are used as start tangent for the spline. In the second
case the connection line between start point and first spline point is applied as a
tangent. In the center of the spline the adjoining points are connected. Then the
tangent of the point is in parallel with this connection line (see the green line). The end
of the spline is treated equal to the start of the spline: Consist the next element of tool
meshing, then its start tangent is used. If not, the line between the last point and next
to last point is used.