A.Signal_name’EVENT B.Signal_name’ACTIVE C.Signal_name’FIRST_EVENT D.Signal_name’LAST_ACTIVE
A.Array_name’LEFT(n) B.Array_name’High(n) C.Array_name’Middle(n) D.Array_name’Low(n)
A.Type_name’High B.Type_name’Low C.Type_name’Middle D.Type_name’Left