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Examples

Note

The following examples build upon each other. The sequence of the examples is relevant in

order to understand the respective results.

Requirement/assumption:

DEF VAR_AC = (I/* 0="Off",1="On"/1/,"Switch"/WR2)

Adding an element -1="Undefined" to the end of the list:

LISTADDITEM("VAR_AC", -1, """Undefined""")

Result: 0="Off", 1="On", -1="Undefined"

Inserting an element 99="Maybe" at position 2:

LISTINSERTITEM("VAR_AC", 2, 99, """Maybe""")

Result: 0="Off", 1="On", 99="Maybe", -1="Undefined"

Determining the current number of list elements:

REG[10]=LISTCOUNT("VAR_AC")

Result: REG[10] = 4

Deleting the element at position 1:

LISTDELETEITEM("VAR_AC", 1)

Result: 0="Off", 99="Maybe", -1="Undefined"

Deletion of the complete list:

LISTCLEAR("VAR_AC")

Result: List is empty

Programming commands

6.3 Functions

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