CONTROL SYSTEM, DATA DISPLAY METHOD, DISPLAY APPARATUS, PROGRAM, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a control system wherein each display apparatus can accurately display a state of a controlled object device even when the state of the controlled object device is changed, and also to provide a data display method, the display apparatuses, a program and a recording medium.

SOLUTION: The display apparatus 3 accesses a Web server apparatus 4 at a prescribed time interval to supervise (poring) whether the state of the controlled object device 2 is changed, and when the state of the controlled object device is changed, the display apparatus 3 for displaying the state of the controlled object device acquires only image data at a point denoting the state of the controlled object device from the Web server apparatus 4 and revises the image of the point to update a screen image.

COPYRIGHT: (C)2004,JPO