Display method for supervisory control system

• US 20080114471A1
• Filed: 10/25/2007
• Published: 05/15/2008
• Est. Priority Date: 11/15/2006
• Status: Abandoned Application

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Koyama, Hiroyuki
• Application Number:
  US11/976,571
• Publication Number:
  US 20080114471A1
• Time in Patent Office: Days
• US Class Current: 700/1
• CPC Class Codes: G05B 2219/31467 Display of operating conditions of machines, workcells, selected programs
• CPC Class Codes: G05B 2219/31469 Graphical display of process as function of detected alarm signals
• CPC Class Codes: G05B 23/027 Alarm generation, e.g. communication protocol; Forms of alarm

Abstract

A display method for a supervisory control system that displays on a display screen a result of the interlock judgment for judging the ability of a control operation on each machine under supervisory control from the state information of multiple machines under supervisory control subject to supervisory control by the supervisory control system, includes the steps of performing interlock judgment in advance independently of the control operation, and, upon the control operation, displaying the result of the interlock judgment on a display screen, which displays the machines under supervisory control in advance.

Claims

1. A display method for a supervisory control system that displays on a display screen a result of the interlock judgment for judging the ability of a control operation on each of multiple machines under supervisory control from the state information of the multiple machines under supervisory control subject to supervisory control by the supervisory control system, the method comprising the steps of:

performing interlock judgment in advance independently of the control operation; and

upon the control operation, displaying the result of the interlock judgment on a display screen, which displays the machines under supervisory control in advance.

2. The display method for a supervisory control system according to claim 1, wherein the interlock judgment result is displayed along with the display of a machine under supervisory control.

3. The display method for a supervisory control system according to claim 1, wherein the interlock judgment is normally periodically performed.

4. The display method for a supervisory control system according to claim 2, wherein the interlock judgment is normally periodically performed.

5. The display method for a supervisory control system according to claim 1, wherein the interlock judgment is performed again when a change occurs in the input information for performing the interlock judgment.

6. The display method for a supervisory control system according to claim 2, wherein the interlock judgment is performed again when a change occurs in the input information for performing the interlock judgment.