Query Modifiers Functions Overview

You can use query modifier functions to specify various ways to retrieve data from Historian. For example, you can use ONLYGOOD to request only good-quality data, or INCLUDEREPLACED to retrieve replaced values.

Query Modifier Functions

• ihuBrowseQueryModifiers
• ihuClearQueryModifiers
• ihuRetrieveCalculatedDataEx2
• ihuSetQueryModifiers