METHOD FOR CONTROLLING A PLURALITY OF MACHINES, CONTROL SYSTEM AND PLANT

摘要

The method is used for controlling a plurality of machines M-1, M-2 (e.g. pumps) and at least a first assembly A-1 (e.g. a lubricating or cooling assembly); the plurality of machines comprises at least a first machine and a second machine; the first assembly is associated with the first and second machines and is arranged to provide a first auxiliary function to the first and second machines; control is carried out by means of at least a first controller C-1 and a second controller C-2; the first and second controllers are associated respectively to the first and second machines and are arranged to control the first and second machines as far as a main function is concerned; the first and second controllers are associated with the first assembly and are arranged to control the first assembly as far as a first auxiliary function is concerned; the first and second controllers maintain a dialog between each other so to assure that only one controller controls the first assembly at a time. The method is implemented by a control system and used in a plant (e.g. an oil or gas treating and/or distributing plant).