Hi there,
My problem is the following:
History: Used a PCI 6014 card. Wrote C++ code (Microsoft Visual Studio C++) for data acquisition. In the application read data using 4 analog channels and 4 digital channels. Digital channels trigger multiplexers. Each multiplexer has 12 sensors connected = total 48 sensors.
Reading: During 1000 ms - 10 reading/sensor. Averaged so that I receive 1 data point per second for each sensor.
Reading frequency works.
Now: Change to NI 6210 (USB). With the same parameters as for PCI 6014 reading frequency slows down. I now receive 1 data point per 2 seconds for each channel.
Troubleshooting example: change Time for sample buffer from 1000 ms to 2000 ms -> 1 data point per every 3 second etc
Why does the reading slow down using USB?
Is there anything else that should be changed when going from PCI 6014 to NI 6210, except physical channel? Now I define it as
sDev[] = "Dev*/ai0", controlDev[] = "Dev*/port1/line0:3"
Hope for an answer soon
Dan
