Method of application protocol monitoring for programmable logic controllers
AssigneesFord Motor Company, Rockwell Automation Technologies, Inc.
InventorsJames Coburn, Joe Walacavage
Life of this patent
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Abstract
A method is provided of application protocol monitoring for a manufacturing line including the steps of constructing a manufacturing line model for the manufacturing line, utilizing logic for a programmable logic controller (PLC), executing a control logic simulation of the PLC logic to validate the PLC logic against the manufacturing line model, creating a database containing validated I/O tag expected intents confirmed from the control logic simulation, and applying the application protocol monitoring device to a network for the manufacturing line to monitor traffic across the network and continuously compare the I/O tag status across the network to the database of validated I/O tag expected intents.
Claims20
A method of application protocol monitoring for a manufacturing line, said method comprising the steps of:
- constructing a manufacturing line model for the manufacturing line;
- utilizing logic for a programmable logic controller (PLC);
- executing a control logic simulation of the PLC logic;
- validating the PLC logic against the manufacturing line model;
- creating a database containing validated I/O tag expected intents confirmed from the control logic simulation;
- and
- applying the application protocol monitoring device to a network for the manufacturing line to monitor traffic across the network and continuously compare the I/O tag status across the network to the database of validated I/O tag expected intents.
A method of application protocol monitoring for a manufacturing line, said method comprising the steps of:
- constructing a manufacturing line model for the manufacturing line;
- utilizing logic for a programmable logic controller (PLC);
- bringing a PLC on line;
- bringing the manufacturing line model on line;
- executing a control logic simulation of the PLC logic;
- validating the PLC logic against the manufacturing line model;
- correcting the PLC logic as required;
- creating a database containing validated I/O tag expected intents confirmed from the control logic simulation if the PLC logic is valid;
- and
- applying the application protocol monitoring device to a network for the manufacturing line to monitor traffic across the network and continuously compare the I/O tag status across the network to the database of validated I/O tag expected intents.
A method of application protocol monitoring for a manufacturing line, said method comprising the steps of:
- utilizing logic for a programmable logic controller (PLC) from a single manufacturing system simulation;
- establishing a plurality of PLCs on a simulation environment network;
- linking interlock input/output (I/O) tags;
- starting the PLCs;
- starting the simulation models;
- executing simulation of the PLCs and simulation models;
- validating the PLC logic;
- determining whether the PLC logic is valid;
- correcting the PLC logic if the PLC logic is not valid;
- and
- creating a database containing validated I/O tag expected intents confirmed from the control logic simulation if the PLC logic is valid;
- and
- applying the application protocol monitoring device to a network for the manufacturing line to monitor traffic across the network and continuously compare the I/O tag status across the network to the database of validated I/O tag expected intents.
Dependencies are inferred from the claim text.