States and Signals
An FSM receives signals from other FSMs or from material flow objects, which are watched by a assigned sensor (input
of the FSM). The FSM processes these signale and affects the flow of material by signals to an object, which which releases appropriate actions (output of the FSM).
A FSM can take different states. At one time the FSM has a clearly identifiable state, which is represented by the movable
element Token on the an object State. At the beginning of the simulation the FSM is in the state Start. A final state is not
intended in the library FSM. The FSM can change from a state into another, if one or more conditions are fulfilled (transfer function of the FSM). A condition is determined by the occurrence of signals. Every time a FSM receives a signal, it
examines whether thereby its state can change.
According to the permanence of signals we differentiate the signal types:
1. permanent: If the FSM changes into a new state, some or all permanent signals can be deleted, which were needed as
condition for this state change.
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