| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect the state change of site equipment and to show this state change on the display screen of a monitoring device even when a marketed package whose TAG state monitoring function is limited in a sequencer (controller) is applied to the man-machine processing. SOLUTION: This distributed instrumentation controller is provided with a controller 3 which controls site equipment 4 and a monitoring device 1 which acquires and displays the information collected by the controller 3. The device 1 acquires and displays the state information on the equipment 4 included in the TAG information corresponding to the equipment 4. The controller 3 monitors the state change of the equipment 4 and produces the state change information on the equipment 4 having its state change as the message information of the same number as the TAG number of the equipment 4, and the device 1 acquires the message information and shows it on a display device 2.</p> |
