Software management system, software update device, software update process, and software update program

摘要

[Aufgabe] Safe and simple updating of a control software, even in the case of a control system without an external connection [solution] Provided is a machine system 2 connected to a first network 26 and having control devices 21, 22, 24 and 25 controlling the processing of an updatable control software, a cloud server 3 in which the control software is stored and which transmits the control software via the Internet 5; and an updating device 4 which, when connected to the Internet 5, receives and stores the control software from the cloud server 3, and in with the Field network 26 connected state sends the stored control software to the control devices 21, 22, 24 and 25 and an update can be done.