LinkedList Data Object

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Introduction

A LinkedList Data Object is a list of elementary data values. You can use LinkedList functions to:

LinkedList Functions

These LinkedList Data Object functions are supported:

FunctionDescription
LinkedListAddFirst Adds a data value to the front of a LinkedList Data Object.
LinkedListAddLast Adds a data value to the back of a LinkedList Data Object.
LinkedListCreate Creates an empty LinkedList Data Object.
LinkedListGetFirst Removes the first value from a LinkedList Data Object.
LinkedListGetLast Removes the last value from a LinkedList Data Object.
LinkedListFromSQLCommandColumn Converts a column in an SQLCommand Data Object to a LinkedList Data Object.
LinkedListFromTextDoc Converts a a TextDocument Data Object to a LinkedList Data Object.
LinkedListIsEmpty Tests whether a LinkedList Data Object is empty.
LinkedListToString Converts a LinkedList Data Object to a STRING value.

Examples

Further Information

Data Objects

To learn how to use data objects in IEC 61131-3 code.

IEC 61131-3

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

Glossary

For the meaning of terms used in Fernhill SCADA.