This Web service returns all tag attributes for an item, including tag attributes. If a timestamp is entered, it returns the historical attributes. It does not return the current position or outstanding events.
className: A string that represents name of the class for the item.
keyPairs: This variable is a keyword-value pair that represents key properties. The keyword for each keyword-value pair is the name of a key property, and the value is the value for that key property.
locale: If you want to set the default value, you have to input null. See Localization and input parameters for more information about the locale descriptor.
timeStamp: If you want to set the default value, input null. If you want to get a tag from a specific time, set the timeStamp variable in the following format: yyyy-mm-dd hh:mm:ss.fffffffff