From OpenSCADAWiki
With the help of the main tab of that dialog you can obtain:
- State of the element; for information: "Enabled", counter of the use, date of the last modification, state of the calculation procedure; for control: icon, "Enabled", the page type (for pages), parent element.
- Identifier, root, path, name and description of the element.
- Periodic processing in milliseconds — for common control of the periodic processing of any element including ones who have not any calculation procedure, but that value can be used in the cascade for child elements. There reserved the special values:
- 0 — you want periodic processing with the session period;
- -1 — you want to use processing period of the parent widget/page/project in the cascade;
- -2 — for disable the periodic processing in whole.