# US 2014/0156974 A1 · Device operating information providing device and device operating information providing method

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- Number: US 2014/0156974 A1
- Document ID: US20140156974A1
- Status: Published application
- Kind: A1
- Application number: 14/096,271
- Filed: 2013-12-04
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Azbil Corporation
- Applicants: Azbil Corporation
- Inventors: Toshiya MORITA
- Web page: https://patentgrep.com/patent/US20140156974A1

## CPC

- G05B 19/0428: {Safety, monitoring (G05B19/0423 takes precedence)}
- G05B 2219/24033: Failure, fault detection and isolation
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

A device operating information providing device includes a control information storing portion that produces and stores, each time an instruction value evaluating portion evaluates that an instruction control value has changed to a different value, control information including the instruction control value after the change, a most recent execution control value acquired by an execution value acquiring portion at the time of the change, and the timing of the change, an operating status evaluating portion that evaluates a device operating status using a change status of the instruction control value and a change status of the execution control value within a specific time interval, which can be specified by control information stored by the control information storing portion, and an operating information transmitting portion that produces, and transmits to a higher-level device side, operating information for the device, using the operating status evaluated by the operating status evaluating portion.

## Claims

### Claim 1

A device operating information providing device comprising:
an instruction value acquiring portion that acquires an instruction control value that is a control value that is outputted to a device that receives and sends signals pertaining to a process;
an execution value acquiring portion that acquires an execution control value that indicates a value after the control performed by the device on that which is controlled, in accordance with the instruction control value;
an instruction value evaluating portion that evaluates whether or not the instruction control value acquired by the instruction value acquiring portion has changed to a different value;
a control information storing portion that produces and stores, each time there is an evaluation by the instruction value evaluating portion that the instruction control value has changed to a different value, control information that includes the instruction control value after the change, the most recent execution control value acquired by the execution value acquiring portion at the time of the change, and the timing of the change;
an operating status evaluating portion that evaluates a device operating status using a change status of the instruction control value and a change status of the execution control value within a specific time interval, which can be specified by control information that is stored by the control information storing portion; and
an operating information transmitting portion that produces, and transmits to a higher-level device side, operating information for the device, using the operating status evaluated by the operating status evaluating portion.

### Claim 2 (depends on 1)

The device operating information providing portion as set forth in claim 1, wherein:
the operating status evaluating portion evaluates that there is a device failure if, within a first time interval that is set in advance, the instruction control value changes by at least a first threshold value and the change in the execution control value is less than a second threshold value, despite a second time interval that is set in advance having elapsed.

### Claim 3 (depends on 1)

The device operating information providing device as set forth in claim 1, further comprising:
a measurement value acquiring portion that acquires a measurement value, performed on that which is to be measured, by another device that is disposed in the vicinity of the device, wherein:
the operating information transmitting portion adds, to the operating information, the measurement value acquired by the measurement value acquiring portion.

### Claim 4

The device operating information providing method including:
an instruction value acquiring step for acquiring an instruction control value that is a control value that is outputted to a device that receives and sends signals pertaining to a process;
an execution value acquiring step for acquiring an execution control value that indicates a value after the control performed by the device on that which is controlled, in accordance with the instruction control value;
an instruction value evaluating step for evaluating whether or not the instruction control value acquired in the instruction value acquiring step has changed to a different value;
a control information storing step for producing and storing into a storing device, each time there is an evaluation in the instruction value evaluating step that the instruction control value has changed to a different value, control information that includes the instruction control value after the change, the most recent execution control value acquired in the execution value acquiring step at the time of the change, and the timing of the change;
an operating status evaluating step for evaluating a device operating status using a change status of the instruction control value and a change status of the execution control value within a specific time interval, which can be specified by control information that is stored in the control information storing step; and
an operating information transmitting step for producing, and transmitting to a higher-level device side, operating information for the device, using the operating status evaluated in the operating status evaluating step.