Data Type: __UXINT, __XINT, __XWORD Variables with these special data types are converted to a platform-compliant data type, depending on the target system. CODESYS supports systems with address regis

User-defined data type: TYPE :

Data Structure: UNION A UNION is a data structure with usually different data types. In a union, all components have the same offset and therefore the same amount of storage space. TYPE NAME_AB: UNION

Pragmas Pragma statements influence the properties of one or more variables with respect to the compile or precompile process. Various categories of pragmas are available for this. Pragmas are current

Attribute pragmas Attribute pragmas influence compiling and precompiling. They are supported only in text editors. CODESYS supports a series of pre-defined attribute pragmas. In addition you can use u

Custom attribute User-defined attributes are any application-defined or user-defined attributes that you can apply to POUs, actions, data type definitions and variables. You can query a user-defined a

Attribute: call_after_global_init_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. Reason: Input variables are unknown in this case at the t

Attribute: call_after_online_change_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. The reason is that in this case the input variables are

Attribute: call_before_global_exit_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. Reason: Input variables are unknown in this case at the

Region Pragma The pragma is used to combine multiple lines in a text editor to a block. The block can be named. Region pragmas can also be nested. Code with region pragma: Expanded and collapsed views