PREV/PREVGOOD ExamplesSave PDFSave selected topicSave selected topic and subtopicsSave all topicsShareShare to emailCopy topic URLLast UpdatedJan 25, 20241 minute readHMI and SCADASystem PlatformHistorian 2023 R2 Example 1 The following expression Line1.Total - PREV( Line1.Total, hour ) Related LinksPREV/PREVGOOD