Patent ID: 6892107
Filing Date: 2005-05-10
Classification: G05B

Abstract:
1. A plant control monitoring system comprising: a display device configured to display operating states of a plurality of devices or equipment included in each process of a plant by using predetermined symbols; and a processing unit having an alarm output portion for outputting an alarm signal and causing the display device to display an alarm, when judging that an operation of a device or equipment is in a deviation state; the display device including: a first layer picture configured to represent an operating state for each device or equipment, and an upper layer picture configured to represent an operating state for each of groups into which devices or equipment are hierarchically divided so as to be associated with one another; a simple display means for simply displaying a simple display portion configured to simply display an operating state of a lower layer group, the same layer group, or an upper layer group, on the first layer picture or the upper layer picture; and a picture switching means for switching picture display as desired.