Siemens SINUMERIK 840DE sl Commissioning Manual page 1141

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
SINUMERIK Integrate Run MyScreens (BE2)
Programming Manual, 12/2017, 6FC5397-1DP40-6BA1
Programming commands
6.3 Functions
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