System task information

VAR_GLOBAL
    SystemTaskInfoArr       : ARRAY[1..2] OF SYSTEMTASKINFOTYPE;
END_VAR

System flags are implicitly declared variables. Using the Input Assistant, a variable SystemTaskInfoArr can be found under system variables. This variable is a field with four structures of type SYTEMTASKINFOTYPE. The structure definition can be found in the system library. The index in this field is the task ID.