IEC 61131-3 Data Objects

Introduction

A Data Object is a data structure that is created and accessed using IEC 61131-3 extension functions.

Fernhill SCADA supports these Data Objects:

Object Type	Description
LinkedList	A list of elementary data values. Functions are available to: Create LinkedList Data Objects. Add entries to LinkedList Data Objects. Remove entries to LinkedList Data Objects. Query the contents of LinkedList Data Objects.
SQLCommand	Represents an SQL Command on a data source. The SQL Command can be: A query that returns a result set, or A data manipulation language (DML) statement that updates a data source.
TextDocument	Represents a text document. The text document can be formatted using: Plain text CSV JSON

To learn how IEC 61131-3 is used in Fernhill SCADA.

For the meaning of terms used in Fernhill SCADA.