STATE MACHINE FUNCTIONAL BLOCK EQUIPPED WITH USER MODIFIABLE OUTPUT CONFIGURATION DATABASE

摘要

PROBLEM TO BE SOLVED: To provide a functional block used in a process plant that enables tracking of a system status in a sure way.

SOLUTION: A control system, safety system, etc. within a process plant may each use one of 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. These inputs may or may not cause a state machine implemented by the state machine function block to change states. The state machine function block may also include a plurality of outputs. Output configuration data associated with the function block may indicate values of the outputs of the function block for each of the states of the state machine. The function block may use this output configuration data to determine its outputs in a particular state.

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