Is there a way to synchronize input from separate cdaq modules?
I need to read a voltage on an NI-9219 analog input channel and a
frequency on an NI-9211 channel. As far as I can tell a single "task" can
only read input from channels on one module. Is there a way to build a task that reads data from multiple modules?
Seems to me that buffered input is useless when multiple tasks are employed. With multiple tasks you get arrays of data that are sequential, not simultaneous. Is this correct? I'm thinking that the only way to
get synchronized readings is to read each channel individually inside a
loop. But this restricts the program to low speed data
acquisition with measurements that are spaced unevenly. Right?
I want to create a data file with three columns: time, voltage,
frequency. What's the best way to get these readings at the same
instant?
Referrence to a help document or tutorial would be great.
thanks!
