National Instruments NI-Motion - Manual (Page 233)

Chapter 14 Onboard Programs
© National Instruments Corporation 14-25 NI-Motion User Manual
Figure 14-12. Reading an Indirect Variable
Using indirect variables can be very useful in looping in onboard programs,
as well as dynamically changing the input values to functions.
Onboard Buffers
You can use the memory on the NI motion controllers to create
general-purpose buffers to read and write data, as shown in Figure 14-13.
Figure 14-13. Onboard Buffer Data Flow
buffer in
Copies captured
position to buffer
External
trigger
Latches position
on external trigger
Reads the captured
position
Reads data from the
buffer asynchronously
I/O
reaction
task
Host
application