Operator: __DELETE The operator is an extension of the IEC 61131-3 standard. Important For compatibility, the compiler version must be >= 3.3.2.0. The operator releases the memory of instances that th

Operator: __ISVALIDREF The operator is an extension of the IEC 61131-3 standard. The operator is used for checking whether a reference refers to a valid value. For a description of use and an example,

Compiler Error C0178 Message : No external access to 'VAR_IN_OUT' parameter '<parameter name>' of '<object name>' Possible error cause : An attempt is made to remotely access a 'VAR_IN_OUT' parameter.

Compiler Error C0179 Message : '<identifier>' is no output of 'Function block' Possible error cause : The initialization of a function block instance must not contain VAR_IN_OUT variables. Error corre

Compiler Error C0180 Message : Ambiguous namespace '<library 1>' defined by library '<library 2>' Possible error cause : The namespace of the library <library 1> is not unique. It is already used for

Compiler Error C0182 Message : Return type is only possible for POUs of Type FUNCTION and METHOD Possible error cause : An attempt is made to define a return value in a program. Error correction : Def

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 locati

Compiler Error C0185 Message : It is not possible to perform component access '.', index access '[]' or call '()' on result of function call. Assign result to help variable first. Possible error cause

Compiler Error C0186 Message : It is not possible to compare interface that is return value of call. Assign to variable first. Possible error cause : A comparison operation is applied to an interface

Compiler Error C0188 Message : Device not installed to the system. No code generation possible. Possible error cause : The desired device is not installed. Error correction : Install the missing devic