Title:
CONTROL SYSTEM, PROGRAM TRANSMISSION DEVICE, AUTHENTICATION SERVER, PROGRAM PROTECTION METHOD, PROGRAM TRANSMISSION METHOD, AND PROGRAM FOR PROGRAM TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/097444
Kind Code:
A1
Abstract:
The objective is to provide a control system which safely protects a control program and, with respect to a specific user, increases convenience of reading of an execution-use control program from a PLC and writing of an execution-use control program to the PLC. The control system is provided with: a controller (300) which controls a production apparatus (500); a development-use computer (200) which converts a control program, in which control of the production apparatus (500) is described, to an execution-use control program which is capable of being executed at the controller (300), encrypts the program, and generates an editing-use key for editing use and an execution-use key for execution use; and a management server (100) which manages information of the user. The development-use computer (200) registers the editing-use key in a user management table (101) of the management server (100), and transmits the execution-use key and the execution-use control program to the controller (300).
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Inventors:
KATSUTA TAKAO (JP)
Application Number:
PCT/JP2012/083052
Publication Date:
June 26, 2014
Filing Date:
December 20, 2012
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
KATSUTA TAKAO (JP)
KATSUTA TAKAO (JP)
International Classes:
G09C1/00; G05B19/05; H04L9/08; H04L9/32
Foreign References:
| JP2008067162A | 2008-03-21 | |||
| JP2011086240A | 2011-04-28 | |||
| JP2008065678A | 2008-03-21 |
Attorney, Agent or Firm:
MIZOI, Shoji et al. (JP)
Shoji Mizoi (JP)
Shoji Mizoi (JP)
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