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Common Questions
When I set the individual channel gains programmatically on the
SCXI-1126 module, each call to
SCXI_Set_Gain
takes several seconds
to return. Is this normal behavior?
This is normal behavior for the SCXI-1126. It takes 3 seconds to settle after
a call to
SCXI_Set_Gain
. For example, if you called
SCXI_Set_Gain
on
4 channels of the SCXI-1126, it takes about 12 seconds for all the calls to
return (3 seconds per channel
×
4 channels = 12 seconds).
When I try to manually add and configure my module, it is not in the
list of modules. Why is my module not listed?
You might have an old version of NI-DAQ. If you do not have the latest
version of NI-DAQ, you can download it from
ni.com
or contact an
NI sales representative to get a CD.
I have a single SCXI-1126 module in my SCXI chassis. If I control it in
multiplexed mode, I get correct values when I read the channels. If I
control the module in parallel mode, I get values that are not scaled
back after the gain. How do I correct this problem?
You saw incorrect values in parallel mode because you did not reconfigure
NI-DAQ to control the SCXI-1126 module in parallel mode. You can do
this by launching MAX and selecting the SCXI-1126 module. Right-click
the SCXI-1126 module and select
Properties
. Select the E Series DAQ
device that connects to the SCXI-1126 module and choose
Parallel
for the
mode. You also must tell NI-DAQ the gain to use for each channel. Once
you have completed the configuration, NI-DAQ changes the mode of the
chassis and turns the SCXIbus off. This links the SCXI-1126 module to the
E Series DAQ device.
Note
Any other modules you add to the chassis in this configuration are ignored.
No communication is made to them from that E Series DAQ device.
If you are still having problems, contact NI at
ni.com/support
.
