ADLINK PCI-8158 - Manual (Page 61)

Operation Theory 51
4.2.7 Two axes linear interpolation position mode
“Interpolation between multi-axes” means these axes start simul-
taneously, and reach their ending points at the same time. Linear
means the ratio of speed of every axis is a constant value.
Assume that we run a motion from (0,0) to (10,4). The linear inter-
polation results are shown as below.
The pulses output from X or Y axis remains 1/2 pulse difference
according to a perfect linear line. The precision of linear interpola-
tion is shown as below:
To stop an interpolation group, just call a stop function on first axis
of the group.
As in the diagram below, 8-axis linear interpolation means to move
the XY position from P0 to P1. The 2 axes start and stop simulta-
neously, and the path is a straight line.