CENTRAL MONITORING CONTROL SYSTEM, SERVER DEVICE, METHOD FOR CREATING DETECTION INFORMATION, AND DETECTION INFORMATION CREATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To allow each client device to acquire all the monitoring data collected by a server device in an instrumentation control system.SOLUTION: The server device repeatedly acquires (monitoring) data showing the state of a detection target from a data detector with a first period. Each client device acquires detection information from the server device with a second period not smaller than the first period. The server device creates detection information for a second level in the interval between acquisition of state data of a first level and passage of a first period of time, if status data changes from the second level indicating an abnormal state to the first level indicating a normal state.SELECTED DRAWING: Figure 1