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Special Motion Commands

4.2 Spline interpolation (ASPLINE, BSPLINE, CSPLINE, BAUTO, BNAT, BTAN, EAUTO, ENAT,

ETAN, PW, SD, PL)

Job planning

Programming Manual, 07/2010, 6FC5398-2BP40-0BA0

245

Combine short spline blocks

Spline interpolation can result in short spline blocks, which reduce the path velocity

unnecessarily. The "Combine short spline blocks" function allows you to combine these

blocks such that the resulting block length is sufficient and does not reduce the path velocity.

The function is activated via the channel-specific machine data:

MD20488 $MC_SPLINE_MODE (setting for spline interpolation).

References:

Function Manual, Basic Functions; Continuous-Path Mode, Exact Stop, Look Ahead (B1),

Chapter: Combine short spline blocks

Siemens SINUMERIK 828D Programming Manual

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