PROBLEM TO BE SOLVED: To enable a first engineering device to execute work of starting up or modifying a facility management system via a second engineering device located in a remote place.;SOLUTION: A building management system includes a first engineering device 1 including a first receiving unit 12 that receives designation of engineering data, a first synchronization unit 13 that reflects the engineering data on a second engineering device 2, and acquires execution outcome information, and a first execution unit 14 that issues an execution instruction for allowing the second engineering device 2 to execute control of a controller 3, and a second engineering device 2 including a second synchronization unit 23 that reflects the engineering data sent from the first engineering device 1, and transmits the execution outcome information concerning an outcome of the execution of the control of the controller 3 to the first engineering device 1, and a second execution unit 24 that executes the control of the controller 3 in response to the execution instruction.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2019,JPO&INPIT
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