FIELD DEVICE MAINTENANCE APPARATUS

• US 20110238375A1
• Filed: 03/23/2011
• Published: 09/29/2011
• Est. Priority Date: 03/24/2010
• Status: Active Grant

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: Fujisaki, Morihiro
• Granted Patent: US 8,571,833 B2
• Time in Patent Office: Days
• US Class Current: 702/184
• CPC Class Codes: G05B 23/0267 Fault communication, e.g. human machine interface [HMI]

Abstract

A field device maintenance apparatus includes a field device connection unit that communicates with a field device whose operation contents are defined by parameters; a work-information acquisition unit that acquires parameter attribute information including whether or not the individual parameters are displayable and work instruction information that shows work contents; a display unit that displays one or more of the parameters of the field device depending on whether or not the individual parameters are displayable according to the parameter attribute information; an operation accepting unit that accepts a changing operation for changing one or more of the parameters displayed by the display unit; and an operation-history-information recording unit that records a history of operations accepted by the operation accepting unit.

Claims

1. A field device maintenance apparatus, comprising:

a field device connection unit that communicates with a field device whose operation contents are defined by a plurality of parameters;

a work-information acquisition unit that acquires parameter attribute information including whether or not individual parameters are displayable and work instruction information that shows work contents;

a display unit that displays one or more of the parameters of the field device depending on whether or not the individual parameters are displayable according to the parameter attribute information;

an operation accepting unit that accepts a changing operation for changing one or more of the parameters displayed by the display unit; and

an operation-history-information recording unit that records a history of operations accepted by the operation accepting unit.

2. The field device maintenance apparatus according to claim 1, wherein the parameter attribute information includes whether or not the individual parameters are changeable, and

wherein the operation accepting unit does not accept the changing operation for one or more of the parameters that are set to be unchangeable.

3. The field device maintenance apparatus according to claim 1, wherein the work-information acquisition unit acquires the parameter attribute information and the work instruction information from a portable recording medium.

4. The field device maintenance apparatus according to claim 2, wherein the work-information acquisition unit acquires the parameter attribute information and the work instruction information from a portable recording medium.

5. The field device maintenance apparatus according to claim 3, wherein the operation-history-information recording unit records the history of the operations on the portable recording medium.

6. The field device maintenance apparatus according to claim 4, wherein the operation-history-information recording unit records the history of the operations on the portable recording medium.

7. The field device maintenance apparatus according to claim 1, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.

8. The field device maintenance apparatus according to claim 2, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.

9. The field device maintenance apparatus according to claim 3, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.

10. The field device maintenance apparatus according to claim 4, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.

11. The field device maintenance apparatus according to claim 5, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.

12. The field device maintenance apparatus according to claim 6, wherein the operation accepting unit stops accepting the changing operation for the parameters when the operation accepting unit is informed that the changing operation for changing the parameters has been completed.