Attribute: no_virtual_actions The pragma is used for function blocks that are derived from a function block implemented in SFC and use the fundamental SFC sequence of this base class. The actions call

Attribute: pingroup The effect of this pragma is that the input pins or output pins (parameters) are grouped in the declaration of a function block. In the FBD/LD editor, a pin group defined in this w

Attribute: pin_presentation_order_inputs, pin_presentation_order_outputs Important This pragma is not evaluated when {attribute 'pingroup' := '<Group_Name>'} pragma is used. The pragmas are evaluated

Attribute: ProcessValue With the 'ProcessValue' attribute, you decorate a member of a structure. In the CFC editor, you can then use the Use Attributed Members as Input command in order to connect thi

Attribute: qualified_only The effect of this pragma is that variables of a global variable list are addressed only by specifying the global variable name, for example gvl.g_var . This also applies to

Attribute: reflection The pragma decorates a POU for a compiler search for function block variables which are decorated with the 'instance-path' attribute or the 'is_connected' attribute. POUs with th

Attribute: subsequent Important VAR_TEMP in a program with attribute 'subsequent' leads to a compiler error. The pragma is used to allocate consecutive variables in memory. When the list changes, the

Constant: Typed Literal With the ecxeption of REAL or LREAL -Constants (in this case, always LREAL is used) the smallest possible data type is used when calculating with IEC constants. If you want to

CODESYS Development System The CODESYS Development System is the IEC 61131-3 programming tool for controller and automation technology. The programming system is available in a 32-bit and a 64-bit ver

Overview Using the CODESYS Help The CODESYS Help is intended to assist you in using the CODESYS Development System easily and successfully. You will find quick answers to questions and solutions to pr