Patent ID: 9250616
Filing Date: 2016-02-02
CPC Classification: G05B,Y02P

Claim Text:
1. A process control system that controls an industrial process implemented in a plant, the process control system comprising: a network provided in the plant; a first field device that is connected to the network, the first field device being configured to output one of measurement data, which is obtained by measuring a state quantity in the industrial process, and first simulation data, which simulates the state quantity; a second field device that is connected to the network, the second field device being configured to output one of response data, which indicates a result of an operation of the state quantity in the industrial process under control of the controller, and second simulation data, which simulates the result of the operation of the state quantity; a controller that is connected to the network, the controller being configured to perform control in response to one of the measurement data and the first simulation data output from the first field device; and a simulator configured to generate the first simulation data to be output from the first field device and configured to generate a new first simulation data by using at least one of the second simulation data and a control quantity controlled by the controller that are output from the second field device, wherein the second field device includes a second control unit having a second operating mode setting unit, the second control unit controlling operation of the second field device in accordance with operating mode set in the second operating mode setting unit, the second operating mode setting unit is configured to set operating mode of the second field device to one of a normal mode and a simulation mode, if the normal mode is set in the second operating mode setting unit, the second field device is operated under control of the controller and transmits to the controller response data indicating a result of an operation, and if the simulation mode is set in the second operating mode setting unit, the second field device transmits the second simulation data that is response data, including at least a control quantity from the controller, to the controller and the simulator.