“Fix Version”

Defines the compiler version which CODESYS uses when compiling and when loading for compiling

Example: “3.5.6.0” for Version 3.5 SP6

“Allow unicode characters for identifiers”

Cleared by default because using Unicode characters in identifier names is not permitted in the IEC standard

May be required for some foreign languages (for example, Asian languages)

“Replace constants”

: (default) The value is loaded directly for every scalar constant (not for ‎STRING‎, ‎ARRAY‎, or structures).

: (default) CODESYS loads the value directly for every scalar constant (therefore not for ‎STRING‎, ‎ARRAY‎, or structures). In online mode, CODESYS marks the constants with a symbol which is prepended to the value in the declaration editor or monitoring view. In this case, access is not possible, for example by means of an ‎ADR‎ operator, forcing, and writing.

: Access to constants is possible, but it prolongs the computation time.

“Enable logging in breakpoints”

For breakpoints which are defined as execution points, you can create a message text in the “Execution Point Settings” dialog. CODESYS prints this text to the device log when the application halts at the execution point.

“UTF8 Encoding for STRING”

: Strings with the ‎STRING‎ data type are encoded in ASCII format project-wide. An index access to the literal works properly.

: Strings with ‎STRING‎ data type are encoded in UTF-8 format project-wide. This applies to every ‎STRING‎ literal and is also used for their monitoring.

Index access to the UTF-8 literal is not advisable and will mostly lead to errors.

TIP:

If project-wide encoding to UTF-8 format is not desired, a single variable type can be implicitly converted with a ‎UTF8#‎ prefix.

NOTE:

“Maximum number of warnings”

Refers to the warnings which CODESYS prints to the message view

TIP:

You define the selection of displayed compiler warnings in the ⮫ “Dialog: Project Settings: Compiler warnings ” category of the  “Project Settings” dialog.