Question: When I enter a manual data value in a tag's Manual Data field, I keep getting a "Value out of range" message, and the tag's value is reset. How can I fix this?
A: The acceptable manual data values for a tag are governed by the range of values set in the Scaled Process Data Min and Scaled Process Data Max fields on the tag's Scaling tab. These properties set the maximum and minimum value that will be accepted by a tag and the process or equipment it represents, ensuring that operators do not enter invalid values for the tag. You should check the tag's Scaling properties to ensure the proper Scaled Process Data Min and Scaled Process Data Max values have been set for the tag, and then ensure the manual data value you are attempting to enter falls within the range specified by the two scaled values.