The following section details the changes made to CtAPI functions in CitectSCADA v7.20.
New Functions
| ctListItem | Gets the tag element item data. |
| ctTagReadEx | Performs the same as ctTagRead, but with an additional new argument |
Modified Functions
| 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. |
Obsolete Functions
None