Through normal programming this can be done, but it does take someone that really understands the problem and how to deal with it. My proposal would be more useful for a new to intermediate user or when all that's needed is a simple and quick solution.
It would work like this:
A simple "Data Control" Express Node that could take data acquired using modules that run at different speeds (like a NI 9211 and a NI 9239 running on a cDaq chassis), that would automatically control the buffer size (through averaging as one option) to prevent a program crash. Then output the data at a equally consistent rate which could then be graphed or logged at a set rate as determined by a user.
As we know if a 9211 is running at 4Hz and a 9239 is running at 20Hz, that could produce a buffer over run. I'm suggesting that a "Data Control" node be written that a programmer could use to graph and log data at a selectable rate no higher than the slowest module. In my 9211 & 9239 example it would be 4Hz or less, and that would occur because internally it would be automatically averaging the 9239 data. If a lower speed is selected (like 1Hz) then both would get averaged before the data gets output at 1Hz.
