The following section details the changes made to CtAPI functions in CitectSCADA v7.20.
|ctListItem||Gets the tag element item data.|
|ctTagReadEx||Performs the same as ctTagRead, but with an additional new argument|
|ctTagRead||Reads the current value from the given I/O device variable tag element value.|
|ctTagWrite||Writes the given value to the I/O device variable tag elements which have read/write access.|
|ctTagWriteEx||Asynchronously writes the given value to the I/O device variable tag element value for the tag elements which have read/write access.|
|ctListAdd||Adds a tag element value to the list.|
|ctListAddEx||Adds a tag element value to the list.|