tachometer.vi

[labview1958]

I do not have LV7.1. Although I have LV7.0 30 day free trial package. Would the Frequency VI work?

[Salvador_Santolucito]

I know we've mentioned this before. But you really need to be using LabVIEW 7 and DAQmx. If you only have a 30 day trial, then you NEED to get a license of it. It will really make things easier when you are programming your application.

Once you are in LabVIEW 7 and DAQmx. Look through the shipping examples. Try to understand DAQmx and how it works. Also look through the many LabVIEW 7 and DAQmx tutorials we have available.

-Sal

[labview1958]

I have a LV in 6.0 that measures FORCE from a BALANCE and frequency of a motor using the frequency COUNTER from the NI-6025E DAQ card. So far I have not been succesful. I get the message ERROR-10401 - CTR GROUP CONFIG. What does that mean? The LV has no ERRORS. Anyone can HELP! The LV in 6.0 is attached.

[Dennis_Knutson]

Why don't you try a value of "1" for the counter input?

[labview1958]

By counter input do you mean the frequency.vi input which is now zero? What does the ERROR means in plain language?

[Dennis_Knutson]

Yes, the counter input of Measure Frequency. You have counter group 0 specified. I'm pretty sure that counters start with 1. It would seem that a CTR GROUP CONFIG error means that you're trying to configure an invalid counter.