Pass fail decision for DMM readings

[Lama]

Hi,

Hope you will excuse a newby's ignorance.

I have LabVIEW V8.2 with no add on's and a PXI chassis.

I want to measure the resistance between about 100 points for pin 1 to pin 2 , then pin 3 etc to pin 100, then pin 2 to pin3, ...pin 100.

The only way that I can think of verifying that all the measurements are correct is to write the results from the DMM to a 100 X 50 matrix,

and have two more 100 X 50 matrix, one with minimum resistance values and the other with maximum, and performing comparisons of the matrix.

Are there any alternatives and is this the best approach?

Thanks for any thoughts

[Dennis_Knutson]

Do you have different limits for each of the resistance measurements?

[Lama]

On about 80 of the lines I am just looking for continuity, but on the remainder I am looking for values between 120 ohm and 15K ohm, that is to say, 120 ohm between two wires, 10K between two other wires, etc.

[Dennis_Knutson]

It's too bad they are not the same since the In Range and Coerce function accepts scalars and array (1D or 2D) inputs. If you stick with the 2D array idea, then the following code will work. You might want to think about keeping the limits in a Excel file. If you save it as a tab or comma separated text file, then you can read in the limits with the Read From Spreadsheet File function.

Message Edited by Dennis Knutson on 05-22-2007 09:50 AM

[Lama]

Thanks Dennis,

I will stay with my compairing arrays idea then.

Lama