IDE Documentation ... Reference documentation Creating the application Creating application in ST-editor Supported ST-syntax Declarations in ST Declaration of variables in ST Declaration of internal variables in ST Declaration of function block instances in ST Declaration of variables based on an interface Declaration of input variables in ST Declaration of output variables in ST Declaration of in-out variables in ST Declaration of global variables in ST Declaration of global variables in global-object and its usage in ST Declaration of external variables in ST Declaration of temporary variables in ST Declaration of STRING variables (incl. access) Declaration of reference variables (incl. assignments to them)