how to configure PCI-6040E using LabVIEW

[qing]

I was trying to set the gain of ADC channels on a PCI-6040E(PCI-MIO-16E-4) using LabVIEW to get better precision during A/D conversion.

The manual of the board says that it is completely software configurable and user can do the configuration through LabVIEW...

Can anybody tell me how to do this in LabVIEW or MAX? I did manage to set up some parameters of the board in MAX(version 2.0). However, I still have no idea about how to set the ADC gain of the board...

Thanks a lot!

[waldemar.hersacher]

Hi ging,

you set the gain for each channel with the AI Config VI. There is a input called "input limits". You set the gain not directly. It is done by giving the measurement range.

For example you have three channels to acquire build a array with 3 elements of clusters containing the high and low limit for each channel. You can set it to something like (0.1, -0.1), (0.5, -0.5), (5.0, -5.0) for the three channels and NI DAQ will use the correct gains for your card.

Waldemar