PURPOSE:To provide a dispersion type control system which can monitor and operate plural control systems through an arbitrary MMI device and a display. CONSTITUTION:The system has a bus switching device 41 to switch the connection with LAN buses 11-1n of respective control systems and MMI devices 31-3m, a CRT switching device 61 to switch the connection with displays 51-5p to monitor and operate a system and respective MMI devices 31-3m and an MMI manager 70 to control the switching of the bus switching device 41 and the CRT switching device 61.
展开▼
