The LinkedListGetFirst Function removes the first entry of a LinkedList Data Object.
Informal Syntax:
LinkedListGetFirst( LinkedListID )
Formal Syntax:
LinkedListGetFirst( LinkedListID:=Expression )
The LinkedListGetFirst Function has these parameters.
| Parameter | Type | Description |
|---|---|---|
| LinkedListID | DINT | The identifier of the LinkedList Data Object. |
The return value does not have a type. Use a Type Cast to convert the return value. For example:
TO_STRING( LinkedListGetFirst( LinkedListID ) )
The function reports a runtime error if:
The LinkedListGetFirst Function is an extension to the IEC 61131-3 standard.
For information about functions to manage LinkedList data objects.
For information about all Data Objects supported by Fernhill SCADA.
To learn how IEC 61131-3 is used in Fernhill SCADA.
For the meaning of terms used in Fernhill SCADA.