Delta Electronics PCI-DMC-A01 Programming Manual page 513

Chapter 40 Linear and Arc Interpolation Motion Control API | PCI-DMC-A01 / PCI-DMC-B01
 Description
Mode Parameter Settings
Figure 40.8 Mode = 0 Perpendicular
distance from arc to right angle (AB)
Figure 40.10 Mode = 2 Arc radius (AB)
Revised March, 2012
Figure 40.7 Explanation of TPhase1 and TPhase2
Figure 40.9 Mode = 1 Perpendicular distance
from start of arc to right angle (AB)
40-7