Breakpoints During Contouring

[K_seeker]

We are moving laser head using Contouring mechanism and it is working good.

Now we need to Turn laser on/ off at certain points. Is it possible to embed that information on buffer with the position data on PCI 7342?

One option would be to break contours into sections and send commands to control and output. But that would mean bringing the tool to zero speed and that is not a good option for cycle time.

Please suggest the best method that will help us in this situation.

[Ever_Song]

Hi K_seeker,

Unfortunately, buffered breakpoints are not supported on the PCI-7342 (they are only supported on the PCI-735x series of Motion Controllers). Note: if we wanted to do this on the PCI-753x series, we could use something similar to the Buffered Breakpoints.vi shipping example.

We could use non-buffered breakpoints (not sure if these would work for your application) or we could use a digital output line based on the encoder position to send out a pulse (would be similar to a breakpoint); though, these would not be buffered. The NI-Motion User Manual discusses these options in more detail.