Yokogawa Electric Corporation

Vokosawa Electric Corporation

Masanobu Tsuchiya

Takeshi Ohno

Toshiyuki Emori

Takeshi Hongo

Hiroya Enomoto

Kento Tsukada

Hiroyuki Makabe

A first information processing apparatus () according to the present disclosure includes a control communication unit configured to transmit and receive control communication information according to a control communication protocol, and an adaptor configured to generate first control communication information of a first communication method for one-to-many communication from among the control communication information required for control communication based on the control communication protocol, the adaptor generating the first control communication information with use of information acquired along a path different from a communication path of the control communication on a network in a cloud, and to output the first control communication information to the control communication unit.

Information processing apparatus, information processing method, and program

In an information processing device, a communication control unit performs communication using a first communication method and using a second communication method that is faster than the first communication method. An equalizing unit performs an equalization operation using the first communication method with respect to a first information processing device in a redundancy system in which redundancy is achieved between the first information processing device and a second information processing device using the first communication method. After the equalization operation is completed by the equalizing unit, another equalizing unit performs the equalization operation using the second communication method with respect to a third information processing device, and builds a redundancy system in which the concerned information processing device and the third information processing device are used.

Redundancy method, computer-readable recording medium, and information processing device

An information processing device includes a virtualizer configured to operate as a proxy of hardware on the hardware, at least one virtual machine configured to function as a part of a process control system on the virtualizer, an address duplication determiner configured to determine duplication of an address on an external network when the external network is connected to the hardware, and an address duplication manager configured to cut a connection between the virtual machine and the external network when the duplication of the address is detected.

Information processing device, address duplication managing method, and non-transitory computer readable storage medium

In a real-time communication processing system of the present disclosure, at least one computer transmits a notification to a management apparatus when a virtual machine on the computer has the possibility of experiencing unstable operation related to real-time communication processing. When a virtual processor is free, the management apparatus instructs the computer to allocate the virtual processor to the virtual machine that has the possibility of experiencing unstable operation. When a virtual processor is not free, the management apparatus instructs the computer to allocate a virtual processor, secured by live migration of a virtual machine capable of live migration, to the virtual machine that has the possibility of experiencing unstable operation.

Real-time communication processing system and real-time communication processing method

In a communication processing apparatus used in a production control system, a real-time communication unit detects a diagnostic index related to communication processing and provides a notification of the possibility of unstable operation to a resource adjustment judging unit when the value of the diagnostic index exceeds a predetermined threshold. The resource adjustment judging unit judges whether a virtual processor is free when the notification is received from the real-time communication unit, instructs a virtualization unit to add the virtual processor to the virtual machine that has the possibility of unstable operation when the virtual processor is free, and instructs the virtualization unit to add a virtual processor allocated to a virtual machine with low operation priority to the virtual machine that has the possibility of unstable operation when no virtual processor is free.

Communication processing apparatus, communication processing method, and non-transitory computer-readable recording medium

A communication processing apparatus includes: an application unit that causes application software to be executed; and a real-time communication unit that receives communication requests from the application software and performs transmission and reception of data based on the communication requests. The real time unit includes: a request buffer that temporarily stores the communication requests received from the application software; a real-time communication-unit interface unit that, when the communication requests are data transmission requests, extracts the data transmission requests from the request buffer and performs transmission processing; and a self-diagnostic unit that detects a diagnostic index related to processing of the real-time communication unit, and transmits a notification of operation status of the real-time communication unit to the real-time communication-unit interface unit when the diagnostic index is within a predetermined range.

Communication processing apparatus and communication processing method

A process control system includes a PC that is to be connected to a redundant network. The PC comprises a virtualization unit, and a real-time communication unit configured to operate as a separate process independent of the virtualization unit.

Process control system

A process control apparatus includes a virtualization unit configured to operate in hardware, first and second operating systems configured to run in the virtualization unit, an application configured to run in the first operating system, and configured to control an industrial process by communicating with field devices, a recording unit configured to record a first information required for restoration of the application and a second information passed between the first operating system and the application, and a restoration unit configured to use a history of the second information to set the second operating system to the same state as the internal state of the first operating system, and configured to use the first information to restore the application running in the first operating system into the second operating system.

Process control apparatus and system and updating method therefor

A redundant PC system includes a plurality of redundant PCs which is to be connected through a network. Each of the redundant PCs includes hardware on which an interface for connection to the network is mounted and a host OS configured to operate on the hardware. The host OS is provided with a virtualization unit, and a redundant unit and a real-time communication unit, the redundant unit and the real-time communication unit being configured to operate as separate processes independent of the virtualization unit. The redundant unit is configured to perform a control monitoring for making a PC redundant via a universal interface.

Redundant PC system

A process control apparatus includes a hypervisor, a controller configured to run on the hypervisor and to communicate with a field apparatus to control an industrial process, an operation model definer configured to define an operation model, which is information establishing operation specifications derived from specifications of the controller, a trace information collector configured to collect traces of interactive motions between hardware and the controller, and a normality determiner configured to compare the operation model defined by the operation model definer with the information collected by the trace information collector and to determine the normality of the operation of the process control apparatus.

Process control apparatus and system, and method for determining normality thereof

A process controller includes a first virtualizer to run in a first process controller and a first operating system to run on the first virtualizer, the first operating system transiting from a first state to a second state when control of an industrial process is started. The first operating system transits from the second state to the first state when control of the industrial process for one period ends, the first state being waiting for starting the control of the industrial process, and the second state being when the industrial process is performed. An application runs on the first operating system and performs control of the industrial process at a constant period. A saving unit saves information representing an inner state of the application when the first operating system is in the first state, the information restoring the application in a second process controller different from the first process controller.

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Musashino, Japan

Masanobu Tsuchiya