Yokogawa Electric Corporation

Nec Corporation

Nec Electronics Corporation

Mitsuhiro Yamamoto

Nobuaki Ema

Tatenobu Seki

Yoshihisa Hidaka

Takahiro Kanbe

Hiroyuki Takizawa

Kimikazu Takahashi

Eiji Nagai

Masatoshi Takubo

Ryuu-ichirou Hoshina

Hirofumi Takahashi

Ryuu-Ichirou Hoshina

A plant state displaying apparatus displaying information representing a state of a plant includes a generator that: acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant; calculates a state value representing the state of the plant using the plant information; and generates a plant state diagram in which at least one of a color and a density of at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and a display that displays the plant state diagram generated by the generator as the information representing the state of the plant.

Plant state displaying apparatus, plant state displaying system, and method of displaying plant state

A plant performance evaluation apparatus includes a first storage storing a first static model indicating a model of a first steady state in a plant, a second storage storing a first dynamic model indicating a model of a dynamic state of the plant, a model converter configured to convert the first dynamic model to a second static model indicating a model of a second steady state of the plant, and to store the second static model into the first storage, the first steady state indicating a steady state of the plant temporally before the second steady state, a comparator configured to compare parameters included in the first static model with parameters included in the second static model and to output a comparison result, and a display configured to display the comparison result output from the comparator.

Plant performance evaluation apparatus, plant performance evaluation system, and plant performance evaluation method

A plant simulation device includes a first storage that stores a model that models a state of a facility in a plant, a first parameter that is fixed at a start operation of the plant, and a second parameter that is varied during an operation of the plant, the first parameter and the second parameter being set in the model, and a simulator that compares a process value of the facility with a simulated value calculated using the model and that adjusts the first parameter and the second parameter.

Plant simulation device and plant simulation method with first parameter adjustable at start and second parameter adjustable during operation of the plant

A process control device according to one aspect of the present invention is configured to control an industrial process implemented in a plant. The process control device includes: a virtualizer configured to run over a hardware in lieu of the hardware; and first and second controllers configured to run over the virtualizer and control operations of a plurality of field apparatuses configured to perform at least one of measurement and operation which are required to control the industrial process; an input distributor included in the virtualizer, the input distributor being configured to distribute a signal output from the field apparatus to the first and second controllers; and an output acquirer included in the virtualizer, and the output acquirer being configured to acquire outputs of the first and second controllers, and output any one of the outputs to at least one of the field apparatuses.

Process control device, process control system, and process control method

A maintenance support system include includes: a first storage unit which stores first specification information indicating a specification of a process control system which performs control of an industrial process implemented in a plant; an actual condition information extraction unit configured to extract actual condition information indicating an actual condition for the process control system; and a first comparison unit configured to output first information indicating a result of comparing the first specification information stored in the first storage unit with the actual condition information extracted by the extraction unit.

Adaptive maintenance support and control of a process control system via device specification and actual condition information

A process control system for controlling an industrial process implemented at a plant, may include: a network provided in the plant; a network device comprising at least one of a first detector, which is configured to detect a connection state of the network device with the network, and a second detector, which is configured to detect a state of the network device, the network device being configured to output at least one of connection information, which indicates a first detection result detected by the first detector, and device state information, which indicates a second detection result detected by the second detector, to the network.

Process control system and managing method therefor

A process control system that controls an industrial process implemented in a plant, may include: a network provided in the plant; a first field device that is connected to the network, the first field device being configured to output one of measurement data, which is obtained by measuring a state quantity in the industrial process, and first simulation data, which simulates the state quantity; a controller that is connected to the network, the controller being configured to perform control in response to one of the measurement data and the first simulation data output from the first field device; and a simulator configured to generate the first simulation data to be output from the first field device.

Process control system

A data transferring apparatus includes a ring bus, which circularly transfers data by holding in a slot to one direction and a plurality of nodes connected to the ring bus. Each of the plurality of nodes includes a detector and a controller. The detector detects whether or not data destined for a self-node is held in a slot arrived to another node connected to an upstream side of the self-node. The controller captures the data destined for the self-node from the slot when the detector detects presence of the data destined for the self-node and the slot arrives to the self-node.

Data transferring apparatus and data transferring method that use fast ring connection

An in-circuit emulator comprising an emulation microprocessor for directly outputting at least an address and an execution level information, a latch circuit for latching at least the execution level information outputted from the emulation microprocessor, a register holding a execution level information to be traced, a comparator receiving respective contents of the latch circuit and the register for generating an enable signal when the execution level information latched in the latch circuit is consistent with the execution level information to be traced of the register, and a trace memory coupled to receive the address outputted from the emulation microprocessor and responding to the enable signal so as to store the address outputted from the emulation microprocessor, whereby only the result of execution belonging to a selected execution level is traced in the trace memory.

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Tokyo, Japan

Mitsuhiro Yamamoto