You can use transition objects as transition elements in a program or function block implemented in SFC.
For further information, refer to the description of steps and transitions in the chapter SFC Elements / ToolBox.
EcoStruxure Machine Expert facilitates object-oriented programming using inheritance within function blocks: When you execute Add Object on a function block that inherits from another function block, the Action, Method, Property, and Transition elements used in the base function block are listed for selection:
oAction, Method, Property, and Transition elements with Access specifier = PUBLIC, PROTECTED, and INTERNAL defined in the base function block are available for selection. You can adapt the definition for the inherited object. In the inherited object, the same Access specifier is assigned as to the source elements.
oAction, Method, Property, and Transition elements with Access specifier = PRIVATE are not available for selection because access is restricted to the base function block.
