Back to results
US 9,374,271 B2Granted
Field device, communication system, and method for controlling field device
AssigneeYokogawa Electric Corporation
InventorsKenji Hasegawa, Toshiyuki Emori, Masahiro Sakai
Life of this patent
Estimating the term…
Abstract
A communication system includes a plurality of field devices connected to a field network, and a controller configured to communicate with the field devices via the field network to control the field devices. The field device is configured to communicate with the controller via the field network, and to perform a predetermined processing using information obtained by a communication between the field devices via a local network.
Claims20
A field device comprising:
- a communicator configured to communicate with a control device via a first communication path;
- a local communicator configured to communicate with another field device via a second communication path, which is different from the first communication path;
- and
- a processor configured
- to perform a predetermined information processing using at least one of first information related to the field device itself and second information obtained by communication between the local communicator and the another field device via the second communication path,
- to share the first information and the second information with the another field device via the second communication path, and
- to diagnose abnormal states of the field device and the another field device using the first information and the second information.
4 more elements
A communication system comprising:
- a plurality of field devices;
- and
- a control device configured to communicate with the field devices to control the field devices,
- wherein:
- each field device comprises:
- a communicator configured to communicate with the control device via a first communication path;
- a local communicator configured to communicate with another field device via a second communication path, which is different from the first communication path;
- and
- a processor configured
- to perform a predetermined information processing using at least one of first information related to the field device itself and second information obtained by communication between the local communicator and the another field device via the second communication path,
- to share the first information and the second information with the another field device via the second communication path, and
- to diagnose abnormal states of the field device and the another field device using the first information and the second information;
- and
- the control device is configured to communicate with the field devices via the first communication path.
11 more elements
A method for controlling a field device, comprising:
- transmitting and receiving, by a hardware processor, information among a plurality of field devices via a first network connecting the field devices;
- performing, by the hardware processor, a predetermined processing in each field device using at least one of first information related to the field device itself and second information from another field device obtained by the transmittance and receiving of the information among the field devices;
- and
- transmitting, by the hardware processor, processing results of the predetermined processing from each field device to a control device via a second network connecting each field device and the control device,
- wherein
- performing the predetermined processing comprises:
- sharing the first information and the second information between the field device and the another field device via the first network;
- and
- diagnosing abnormal states of the field device and the another field device using the first information and the second information.
6 more elements
Dependencies are inferred from the claim text.