Boozz,
You can set the gain of your card by either using the NI-DAQ software
and configuring the gain there, or the more practical way of setting it
in LabVIEW. The latter depends on whether you are doing a buffered or
non-buffered acquisition.
In either case, you will be setting values for high limit and low limit.
If you are not buffering your readings, then when you set up your
readings (such as the AI Sample Channel or AI Sample Channels VIs) you
put in values for high limit and low limit. These are inputs on these
VIs.
If you are buffering your acquisition, then you are using VIs to set up
your acquisition such as AI Waveform Scan or AI Continuous Scan VIs.
These VI's contain an input which is array of clusters called "input
limits". These inp
ut limits are the high and low limits of each channel
in the channel list of the VI. Therefore, you can have different gains
for each channel on your board.
For the PCI-MIO-16E-4, the gains (and thus the high and low limits) of
the board are:
Unipolar Bipolar
- +/- 10V
0-10 V +/- 5V
0-5 V +/- 2.5 V
0-2 V +/- 1 V
0-1 V +/- 500 mV
0-500 mV +/- 250 mV
0-200 mV +/- 100 mV
0-100 mV +/- 50 mV
Hope that helps.
Mark
In article <39d24270@newsgroups.ni.com>,
"Boozz" wrote:
> Hi,
>
> We've got a PCI-MIO-16E-4 DAQ-card, which is used and controlled by
LabView.
> Are there some specific vi's which can be used to set the gain for the
> channels on this board? How is this performed.
>
> Sometimes I only get 'weak' signals, (ie. 0..0.5 volts) but as my
card
> standard reads from 0 to 10 volts I can't get optimal resolution from
it!
> Can this be set during measuring / data collection?
>
> Any advi
ce is welcome.
>
> Thanx 🙂
>
> Boozz
>
>
Sent via Deja.com http://www.deja.com/
Before you buy.
