Config Variable With Incomplete Address

Variables defined in a VAR_CONFIG block, i.e. config variables, must specify a complete address.

Erroneous code example:

VAR_CONFIG
    main.foo.bar AT %I* : BOOL;
END_VAR

In this example main.foo.bar has specified a placeholder hardware address. For the example to be considered valid, a specific address such as %IX1.0 should have been declared.