Compiler Error C0183

Message: Global scope operation '.' is not valid on expression '<expression>'

Possible error cause: The '.' operator is used to access a global variable. However, at this location it is not followed by a valid IEC identifier, but for example a character such as ";" or a reserved identifier such as ‎FUNCTION‎, or an operator such as ‎TO_STRING‎.

Error correction: Use a valid IEC identifier for a global variable.

Example of the error:

PROGRAM PLC_PRG
...

iVar := .FUNCTION;// ERROR: C0183 because ; is not a valid identifier
strVar := .TO_STRING;
-->  C0183: Global scope operation '.' is not valid on expression '<expression>'

Error correction

Example: globalValue is declared in a GVL.
PROGRAM PLC_PRG
iVar := .globalValue;