| 摘要 |
<p>PURPOSE: A process automation system is provided to reduce a technical cost for a device operator in the process automation system. CONSTITUTION: In a process automation system, a terminal device(1) communicates a master computer (9) in an operating level and a monitoring level. An automation device(4) communicates the master computer(9) through a transmitter/receiver device(3,6,10) and a data transfer medium(11)(a radio connection, an electric communication network) in a process directed automation level. The master computer(9) is designed with a supper computer at a computer center, and controls an additional process automation system(12,13).</p> |
