A control system, a safety system, etc., within a process plant may each use one or more state machine function blocks that can be easily integrated into a function block diagram programming environment. Such a state machine function block may include one or more inputs, which may cause a state machine...http://www.google.fr/patents/US7730415?utm_source=gb-gplus-shareBrevet US7730415 - State machine function block with a user modifiable state transition configuration database
State machine function block with a user modifiable state transition ...
