Delta Electronics High-Speed PCI 12-Axis Motion Control Card PCI-DMC-A01 - Manual (Page 323)

Chapter 20 2-Axis Arc Interpolation Motion Control API | PCI-DMC-A01 / PCI-DMC-B01
Revised March, 2012 20-35
20.17 _DMC_01_start_v3_arc3_xy
 FORMAT
I16 PASCAL _DMC_01_start_v3_arc3_xy(U16 CardNo, U16* NodeID,U16* SlotID,
I32 Center_X, I32 Center_Y,I32 End_X,I32 End_Y, I16 Dir, I32 StrVel, I32 ConstVel, I32
EndVel, F64 TPhase1, F64 TPhase2, U16 m_curve,U16 m_r_a)

Purpose
2-axis arc interpolation motion with EndVel added (Known conditions: center point coordinates,
endpoint coordinates).
※Values of StrVel and EndVel can be greater than MaxVel.

Parameters
Name Data Type Unit Description
CardNo U16 Number Unit
Node ID of card used for motion
displacement along X-axis and Y-axis
NodeIDArray U16* Number Unit
Holds Node ID sets used for arc interpolation
NodeIDArray[0] holds the 1st set of Node ID
NodeIDArray[1] holds the 2nd set of Node ID
SlotID U16* Number Unit Slot ID
Center_X I32 Number of pulses
Absolute center point X-coordinate on the
specified axis
Center_Y I32 Number of pulses
Absolute center point Y-coordinate on the
specified axis
End_x I32 Number of pulses
Absolute endpoint X-coordinate on the
specified axis
End_y I32 Number of pulses
Absolute endpoint Y-coordinate on the
specified axis
Dir I16 Selection
Specified direction (Clockwise if value is 1;
CCW if value is 0)
StrVel I32 Pulses per second Starting velocity parameter
ConstVel I32 Pulses per second Constant velocity
EndVel I32 Pulses per second End velocity
TPhase1 F64 Second Time from StartVel to ConstVel
TPhase2 F64 Second Time from ConstVel to EndVel
m_curve U16 Selection
1: T-curve
2: S-curve
m_r_a U16 Selection
0: Relative motion displacement
1: Absolute motion displacement