Keywords

Overview

Write keywords in uppercase letters in the editors.

The following strings are reserved as keywords. They cannot be used as identifiers for variables or POUs:

• -

• &

• (

• )

• *

• ,

• .

• ..

• /

• :

• :=

• ;

• [

• ]

• ^

• __CATCH

• __CHECKLICENSE

• __CHECKLICENSEBIT

• __DELETE

• __ENDTRY

• __FINALLY

• __ISVALIDREF

• __MEMORYBARRIER

• __NEW

• __QUERYINTERFACE

• __QUERYPOINTER

• __THROW

• __TRY

• __XADO

• Ι

• +

• <

• <=

• <>

• =

• >=

• >

• =>

• ABS

• ACOS

• ADR

• AND

• AND_THEN

• ASIN

• ATAN

• BITADR

• BY

• CASE

• CONTINUE

• COS

• DO

• ELSE

• ELSIF

• END_CASE

• END_FOR

• END_IF

• END_REPEAT

• END_WHILE

• EXIT

• EXP

• EXPT

• FALSE

• FOR

• IF

• INI

• LIMIT

• LN

• LOG

• LOWER_BOUND

• MAX

• MIN

• MOD

• MOVE

• MUX

• NOT

• OR

• OR_ELSE

• R=

• REF=

• REPEAT

• RETURN

• ROL

• ROR

• S=

• SEL

• SHL

• SHR

• SIN

• SIZEOF

• SQRT

• SUPER

• TAN

• THEN

• THIS

• TO

• TRUE

• TRUNC

• TRUNC_INT

• UNTIL

• UPPER_BOUND

• WHILE

• XOR

Additionally, the conversion operators as listed in the Input Assistant are handled as keywords.