Tags

Virtual tag functions for reading and writing other tags and their history.

Functions for reading and writing other tags, and their history. Available in read and write scripts unless noted.

• value — the current value of another tag.
• writeValue — write a value to another tag.
• historyValue — a tag’s logged value at a past time.
• historyMax — the highest logged value over a range (read scripts only).
• historyMin — the lowest logged value over a range (read scripts only).