The Manual tab contains the Manual Data and Questionable Data properties. The Manual Data field can be used to enter a user-defined value for this tag that will override the value of its calculation. The Questionable Data checkbox allows you to flag this tag’s data as being questionable in the event that you feel the values it is reporting might not be accurate, or when this tag has initially been created and you wish to ensure that its data is monitored for validity.
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Enables you to set a user-defined value for this tag, rather than reading the value from the associated I/O device (i.e. this user-defined value overrides the data incoming from the equipment).
If this field is anything other than a blank, or an invalid number, then the value from the I/O device is ignored and this value will be used instead.
The drawing method used by any tag with Manual Data will include an exclamation mark.
Note: If the value entered into the Manual Data field is a 0, the actual value reported by the equipment is also overridden, as 0 is considered a valid value. Therefore, if it is your intention to resume reading data from the I/O device, you must clear the Manual Data field entirely.
Use this field to flag this tag’s data in the event that you suspect the values it is reporting might not be accurate, or when this tag has initially been created and you wish to ensure that its data is marked for extra monitoring. Please see the topic Merit Tab and Quality Tab, Merit Tab and Quality Tab for details.