ADLINK PCI-8158 - Manual (Page 63)

Operation Theory 53
The command precision of circular interpolation is shown below.
The precision range is at radius ±1/2 pulse.
4.2.9 Continuous motion
Continuous motion means a series of motion command or position
can be run continuously. You can set a new command right after
previous one without interrupting it. The motion controller can
make it possible because there are three command buffers (pre-
registers) inside.
When the first command is executing, you can set second com-
mand into first buffer and third command into second buffer. Once
the first command is finished, the motion controller will push the
second command to the executing register and the third command
to first buffer. Now, the second buffer is empty and user can set