Hi, I'm trying to acquire several AI from 4 different modules (9227 current, 9219 12voltages, 9211 temperatures, 9207 pressures) using cdaq 9174 and then using just one module and several AI with USB Daq. I'm already doing the acquisition, but not at the rate I want it to. I'm requesting a rate in daqmx timing vi in the range of 1-10Hz (only one value of course) but when I run my VI it starts with a sample clock of ~1612Hz. Huge amount of data then. I tested each of the modules alone and they to the acquisition at a rate of 1Hz when requested, using several channel of a module has the same result. The problem is when I create a task where I sample all of the AI from the different module. I hope I was clear enough.
Well, as a second point but less important, how can I add time stamp when I'm reading multiple channels in the format of array 1d waveform? is it possible? I was using the daqmx measurement logging template (producer-consumer) but it does not do this....I might think tomorrow how to do this, but right now I can't think of a simple way to perform this. I'd really appreciate your help.
When setting the virtual channel I overwrote the USBdaq test, so you'll see AI from the same module. The problem is when using the cDAQ and different acq modules.
Thanks for your help in advance!!!!
↧