DEVICE USED IN INDUSTRIAL PROCESS, PLANT CONTAINING PLURAL PIECES OF THE DEVICE AND SIMULATING METHOD FOR OPERATION OF THE PLANT

摘要

PROBLEM TO BE SOLVED: To easily formulate a plan of an industrial plant and also to test the plant by memorizing a software device model having a complete image of a device including a parameter, the functionality and a sequence program in every device included in the software device model. SOLUTION: A plant contains three devices 10, 12 and 14 which are connected to a central control unit 18 via a bus 16. The devices 10, 12 and 14 memorize the software device models 20, 22 and 24 respectively. The models 20, 22 and 24 include all relative information on the devices 10, 12 and 14, i.e., all parameters, device functionality and the programs and sequence codes included in the devices 10, 12 and 14 and then load them into the unit 18. Thus, it's possible to easily formulate a plan of an industrial plant and to test the plant without actually operating many existing devices.