Lenze PLC Designer PLC-Designer (R2-x) SoftMotion - Manual (Page 223)

DMS 5.2 EN 03/2011 TD17
L
223
L-force | PLC Designer - SoftMotion
The SM_Trafo.lib library
Transformation function blocks
9.1.2.1 SMC_CalcDirectionFromVector
Inputs (VAR_IN)
v: SMC_VECTOR3D
The input vector v is typically the vecActTangent interpolator output.
eDir: SMC_VECTORDIR
Input eDir specifies whether the direction is to be calculated at a tangent to the path
(SMC_tangential), opposite (SMC_opp_tangential) or orthogonally to the path
(SMC_orthogonal_r (to the right of the path tangent) or SMC_orthogonal_l (to the left of
the path tangent)).
Outputs (VAR_OUT)
dDir: LREAL
Output dDir is in angular degrees and remains constant for phases in which the
interpolator is at a standstill (v is zero vector). eDir is mostly used as a setpoint
(SMC_ControlAxisByPos) for the directional axis and as input dAlpha for the
transformation.