Troubleshooting Invalid Units

LabVIEW flags invalid units by placing a question mark in the label. A broken run button also appears. You must use the correct abbreviations for units.

You cannot enter ambiguous units. For example, LabVIEW flags m/ss because it is not clear whether it means meters per second squared or (meters/seconds) × seconds. To resolve ambiguity, you must enter the units differently.

You cannot select units for a chart or graph unless you wire the chart or graph to an object that has an associated unit. You can then show the unit the chart or graph has acquired through the connection. You can change the unit only to a compatible unit that measures the same phenomenon. For example, if an input to a chart carries the unit mi, for miles, you can edit the chart unit to ft, in, or m but not to N, Hz, min, acre, or A because they are not distance units.