直也 益子

TL;DR: In this article, the authors propose a control device consisting of a requirement list storage unit which stores a security requirement for communication data corresponding to an application operating in the control device and a command used by the application; an evaluation result storage unit, which stores the evaluation result associated with execution of a variety of encryption algorithms; and an own device environment information storage unit that stores environment information indicating the state of the control devices; and a cryptography selection unit which selects, from the various encryption algorithms, an encryption algorithm which encrypts the communication data and satisfies the security requirement, evaluation result,

TL;DR: In this article, a programmable electronic device has the plurality of processors, improves the processing performance by independently operating usual control and network processing in use of different processors, interrupts the other processors only in executing processing to require reliability to make them execute processing requiring the same high reliability to realize both the improvement of the reliability resulting from coincidence among a plurality of outputs of the processors, and that of processing performance.

TL;DR: In this article, the authors proposed to use a plurality of processors for improving reliability and miniaturization of a device by processing results which are operated on a common data processing target to allow mutual compatibility.

TL;DR: In this article, the authors proposed a circuit which generates and adds a cyclic redundancy check (CRC) to a transmitted data of the controller and the process I/O unit, and a status register which selects operation modes of operation or stop of a CRC generation and a check function and shows CRC errors in each device.

TL;DR: In this article, a data collating device for inputing a processing result obtained by processing a common data processing object so as to be compatible between and among two systems or more is presented.