The size of the Reading Array must be at least the size you specify for the arraySize parameter.
If an overrange condition occurs, the corresponding Reading Array element contains an IEEE defined NaN (Not a Number) value and the function returns the IVIDMM_WARN_OVER_RANGE warning code.
You can test each element in the readingArray parameter for an overrange condition by calling the IviDmm_IsOverRange
function.