To provide an information recording medium, a method and a system for controlling plants, which has a means to specify one of console for each plant for an operator to operates a common facility controller for controlling for the common facilities by selecting one of the operator consoles from among a plurality of consoles for respective plants, which enables the operator to operate each plant controller of an independent plant.

In the system for controlling plants, a plant A controller 102a, a plant B controller 102b, a plant C controller 102c, a common facility D controller 112, a plant A operator console 103a, a plant B operator console 103b, and a plant C operator console 103c are connected via a network 110 and also makes them able to communicate each other. A function for operating the common facility D controller 112 is added to all the plant A operator console 103a, the plant B operator console 103b, and the plant C operator console 103c, and also only one console is given an operation right to control the common facility D controller 112.