09-09-2021 03:10 AM
I have created an NI MAX task to measure load with a Transcell CR-2000 loadcell connected to a NI 9219. It was working fine until I had the loadcell calibrated and applied a custom scale table with the calibration values. Now I get error-200077:
Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.
Property: PreScaledUnits
Requested Value: mVolts/Volt
Possible Values: Newtons
Channel Name: Force
If I do as suggested, change PreScaledUnits to Newtons (which I know is wrong), I get the same error but for AImin, saying the scale should be changed. I tried changing to positive numbers instead of negative, in case that would make a difference, but got the same error. I have searched the community and papers about bridge measurements in LabVIEW, but can't find a solution. I'm not very experienced with LabVIEW, so maybe there's a simple solution. I add screenshots of my NI MAX task, because I don't know if there's a way of sharing a task file.
Solved! Go to Solution.
09-10-2021 07:54 AM
As demonstrated in the attached file, The Max and the Min values in the "Signal Input Range" should match with those inserted in the table Configured from the "Configure Scale" Section. Furthermore try selecting "Newtons" in the Scaled Units section, Hopefully the attached would help with your project.
09-10-2021 10:11 AM
I checked the Configure Scale window, and I already had selected mV/V as electrical units and Newtons as scaled units. I then changed from "ForceScale" to <No Scale> under Custom Scaling, and now it seems to work. The scale settings for the custom scale seem to have conflicted with the scaling without custom scale. Thanks for helping me in the right direction!