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69 results about "DeviceNet" patented technology
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DeviceNet is a network protocol used in the automation industry to interconnect control devices for data exchange. It utilizes the Common Industrial Protocol over a Controller Area Network media layer and defines an application layer to cover a range of device profiles. Typical applications include information exchange, safety devices, and large I/O control networks.
Microcontroller network diagnostic system
ActiveUS20100082805A1Easy to predictEasy to troubleshootDigital computer detailsElectric digital data processingMicrocontrollerArea network
A network diagnostic device is provided, which comprises a passive real-time measurement tool that is useful for, among other things, expediting fault identification, isolation, and repair of a communication network or bus. The device also facilitates prediction of failures by identifying marginal operating conditions. The device analyzes data flowing through the communication network, including through an analysis of variations in bit waveform shape carried by the network physical interconnect media. In one embodiment, an implementation of the network diagnostic device is particularly useful in a DeviceNet-compatible network or, more generally, a Controller Area Network (CAN). The device identifies faults by comparing measurements made on the actual DeviceNet bus with worst-case acceptable criteria. The device interfaces with a remote monitoring computer via an Ethernet compatible medium to display parsed bit-level waveforms, network warnings and errors, as well as an overall network health index.
Owner:WOODHEAD IND INC
Conversion method between multiple protocol bus
ActiveCN101388889AImprove conversion efficiencyGuaranteed seamless connectionBus networksModbusOperational system
The invention relates to a converting method between multiple protocol buses. The method uses a microprocessor, a DeviceNet, a Profibus and the physical layer part circuit and microprocessor program of a Modbus / TCP network protocol to receive different protocol data, store them in the microprocessor, adopts system protocol converting method to realize the protocol converting between multiple protocols. While the task scheduling method using real time multi-task operation system is adopted in the whole protocol converting process, consequently, the real time interaction and updating control of multiple protocol converting data is realized.
Owner:SHANGHAI UNIV
DeviceNet fieldbus input/output device with short-circuit protection and self-diagnostic function
InactiveCN101587463AWith short circuit protectionWith self-diagnosis functionFault responseBus networksDiagnostic dataOutput device
The present invention discloses a DeviceNet fieldbus I / O device with short-circuit protection and self-diagnostic function, which comprises the following components: a DeviceNet interface unit which is used for executing data communication between the DeviceNet fieldbus, setting the bus node number and the communication baud rate of this node, and collecting and storing the input interface state and output interface state diagnosis data; an input / output short-circuit protecting and self-diagnosis unit which is used for executing data communication between the peripheral equipment, switching off the power for short-circuit protection and transmitting the input interface state and / or output interface state diagnosis data to the DeviceNet interface unit when the input / output interface circuit and / or the output interface circuit is shorted. The DeviceNet I / O device of the invention has the functions of short-circuit protection and self diagnosis, can switch off the power and provide self-diagnosis information when the interface power is shorted and automatically recover the operation when the short-circuit trouble is eliminated.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Pressing device closed-cycle control system
The present invention relates to a closed loop control system of a press, which pertains to the technical field of a control system of the press. The present invention is mainly characterized in that a coder is connected and arranged at the relevant moving part by an industrial field bus, the industrial field bus is connected with DeviceNet host station, and the DeviceNet host station exchanges data with a PLC programmable logic controller; a touch screen and an office computer adopt a closed loop system which consists of Ethernet and the PLC programmable logic controller; the present operation of a lathe can be reflected in real time under the support of various software programs; by using the closed loop control system, the safety of the lathe can be greatly increased, an automatic production line interface is arranged, the real-time operation information of the lathe can be displayed on the touch screen in the form of character, flow chart, sketch map, and the like, for convenient understanding, the statistics of relevant parts can be carried out according to the design parameters of the lathe so as to remind users of regular maintenance. The present invention can obviously increase the work efficiency and facilitate the arrangement and statistics of the work for supervisors.
Owner:YANGLI GRP CORP LTD
Method for converting protocol between Modbus and DeviceNet
Through RS485 bus interface, Modbus bus is connected to microprocessor. Through CAN transceiver and controller, DeviceNet bus is connected to microprocessor. Microprocessor connected to EEPROM, data and program storage builds hardware platform of protocol conversion. Using model of protocol conversion between Modbus and DeviccNet supplied by the invention realizes protocol conversion between Modbus and DeviccNet. Modbus devices in form of DeviccNet object as slave site of DeviccNet is connected to DeviccNet network.
Owner:SHANGHAI UNIV
Field bus communication adapter with configurable characteristic
The invention relates to a field bus communication adaptor with configurable character, which comprises: a DeviceNet interface, a CAN bus transceiver, a MCU, an optical coupling insulation circuit, a RS48 bus transceiver, a RS232 interface chip, a power switch and protection circuit, an EEPROM, a dial switch, a DC-DC power insulation circuit, a serial indicator light, an adapter module indicator light, and a network indicator light. Wherein, it stores in main CPU auto baud rate upload / download process, main program process, configuration program process, running program process, algorithm program process to search CLASS ID and ATTRIBUTE ID, search program process for DeviceNet-Modbus mapping relation, and serial ISR process. This invention has super performance.
Owner:SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
Marine low-speed machine air valve welding robot work station control system
ActiveCN106444638AAchieve global controlRealize monitoringNumerical controlWelding power supplyComputer module
Owner:NANJING INT MARINE EQUIP & SPARES
Network diagnostic meter
InactiveUS20020059040A1Accurate measurementDigital circuit testingResistance/reactance/impedenceRotary switchTester device
A portable test meter is disclosed for measuring, calculating, recording and monitoring significant system parameters for a local communication network of the type used in industrial automation applications. The meter is disclosed in the context of a network employing the DeviceNet protocol. For each network parameter of interest, a rotary switch selects a desired one for display. An auto search mode selectable by the operator, increments through selected network parameters and compares measured or calculated values against stored data representing acceptable, marginal, or unacceptable conditions, and an associated visual indicia is displayed for each unacceptable or margin condition detected.
Owner:WOODHEAD IND INC
Low-voltage electrical appliance communication protocol adapter
Owner:TIANJIN BAILI ELECTRIC CO LTD
Four-transmission-point-based papermaking machine transmission experimental apparatus
InactiveCN102681521AGood speed regulation performanceReduce failureTotal factory controlProgramme total factory controlFrequency changerHuman–machine interface
A four-transmission-point-based papermaking machine transmission experimental apparatus comprises an upper computer, a PLC (Programmed Logic Controller), a man-machine interface and at least one group of transmission devices, wherein the transmission devices comprise a frequency converter connected with the PLC, the frequency converter is further connected with a variable frequency motor, the frequency converter is communicated with an encoder by optical fiber, four groups of transmission devices are arranged, the upper computer and the PLC are connected by a PPI (Processor / Peripheral Interface) bus, the man-machine interface and the PLC are connected by either a PROFIBUS or an industrial ethernet bus, the frequency converter and the PLC are connected by any one of PROFIBUS, CAN, industrial ethernet and DEVICENET, the frequency converter and the encoder are connected by optical fiber in a one-to-one correspondence manner, and the frequency converter is further connected with a variable frequency motor. A great deal of data signal wires are saved, the construction work amount is greatly reduced, and the reliability is greatly improved; a touch screen is used as an operating platform, thus saving all buttons, having a visual function, and being clear at a glance; and the whole set of device has the advantages of being good in speed regulation effect, less in faults and convenient to maintain.
Owner:SHAANXI UNIV OF SCI & TECH
Visual locale bus power distribution system apparatus for dangerous situation
InactiveCN101409460AImprove performanceReduced scope for failureEmergency protective circuit arrangementsSustainable buildingsControl layerTransformer
The invention relates to a distributed power distribution system of a visual explosion-proof DeviceNet field bus. The hardware of the system consists of an execution unit control layer, a data acquisition protection layer, a visual operation management layer and a control centre. The execution unit control layer comprises a vacuum circuit breaker and a vacuum contactor; the data acquisition protection layer consists of a voltage data acquisition component, a current data acquisition component and a distributed bus-based integrated intelligent load protection device, and the data acquisition protection layer is connected with the visual operation management layer by the DeviceNet field bus; the visual operation management layer is an upper computer which is connected with the control centre by an Industrial Ethernet. The software of the system is the embedded configuration software which is installed in the upper computer. Compared with the prior art, the distributed power distribution system is a complete set of product consisting of a medium-voltage switchgear, a transformer and a low-voltage power distribution device, is matched with the software and the field bus-based intelligent data acquisition controller to realize the remote data acquisition.
Owner:SHANGHAI LEIYUE AUTOMATIC DEVICE
Semiconductor manufacturing equipment functional simulation-oriented communication protocol mode configuration method
ActiveCN101964788ACommunicativeError preventionProtocol for Carrying Authentication for Network AccessValue type
The invention provides a semiconductor manufacturing equipment functional simulation-oriented communication protocol mode configuration method, which comprises the following steps of: configuring a Boolean type communication protocol at a digital IO port, configuring a value type communication protocol at an analog IO port, and configuring a character string type communication protocol at a serial port, an Ethernet port and a DeviceNet port; and communicating between a simulation system and equipment by selecting corresponding Boolean type communication protocol, value type communication protocol or character string type communication protocol according to the type of the equipment. The system provides a unified configuration interface externally, and a call interface in the packing, unpacking and assignment process according to the three communication protocol types is the same interface. In addition, all communication protocol formats in the field of semiconductor manufacturing equipment can be configured, so the system has the characteristic of universality in the field of semiconductor manufacturing equipment.
Owner:TSINGHUA UNIV
Multi-module data transmission communication system
InactiveCN101477360AFacilitate communicationIncrease productivityTotal factory controlPressesHuman–machine interfaceBeam splitter
The invention relates to a multi-module data transmission communication system, which is provided with a human-machine interface which is connected with a PLC programmable controller, wherein a DeviceNet bus master station unit is arranged on the PLC programmable controller, and the PLC programmable controller is connected with and controls various execution mechanisms and various detection mechanisms of a hydraulic press through a plurality of slave stations which are correspondingly connected with a plurality of splitters connected with the DeviceNet bus master station unit; the plurality of the slave stations comprise slave station TRIO controllers of a control system, power mechanism slave stations, rear lower right beam slave stations of the hydraulic press, front lower left beam slave stations of the hydraulic press, and operation panel slave stations; and the plurality of the splitters comprise control box splitters, power mechanism splitters, rear lower right beam splitters, front lower left beam splitters and operation box splitters. Remote control modules in various distribution boxes and the PLC programmable controller and the TRIO controllers in a control box are taken as slave stations and connected with the network through a DeviceNet network system, remote I / Os are arranged inside the various distribution boxes respectively, and the slave stations are communicated with a master station module of the PLC programmable controller through bus DeviceNet connection.
Owner:TIANJIN TIANDUAN PRESS CO LTD
Communication device and method for rail transit vehicles
InactiveCN103209105ARealize communicationPositive railway stopsBus networksComputer scienceRail transit
The invention discloses a communication device and method for rail transit vehicles. The communication device comprises a world factory instrument protocol (WorldFIP) board card, a DEVICENT board card and a central processing unit (CPU) board card. The WorldFIP board card is used for receiving WorldFIP communication data transmitted by an external WorldFIP device and transmitting the WorldFIP communication data to the CPU board card, and used for receiving WorldFIP processing data transmitted by the CPU board card and transmitting the WorldFIP processing data to the external WorldFIP device. The DEVICENT board card is used for receiving DEVICENT communication data transmitted by an external DEVICENT device and transmitting the DEVICENT communication data to the CPU board card, and used for receiving DEVICENT processing data transmitted by the CPU board card and transmitting the DEVICENT processing data to an external DEVICENT device. The CPU board card is used for recognizing the type of the received data and performing corresponding data switching. By means of the communication device and method for rail transit vehicles, communication between the WorldFIP device and the DEVICENET can be achieved.
Owner:CHINA CNR CORPORATION
Protocol conversion device based on DeviceNet-Modbus
The invention discloses a protocol conversion device based on a DeviceNet-Modbus, comprising a DeviceNet interface circuit for receiving, transmitting and analyzing DeviceNet data information converted by a DeviceNet master station and a microprocessor, a Modbus interface circuit for receiving a Modbus command transmitted by a protocol conversion module and transmitting the Modbus equipment response report to the microprocessor for protocol conversion, a parameter setting circuit for setting a communication Baud rate and a bus node number of the communication device and reflecting the working state and the communication state of the communication device in real time. With the hardware structure provided by the invention, the equipment provided with a Modbus interface can access to the DeviceNet network.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Microcontroller network diagnostic system
ActiveUS8667123B2Easy to troubleshootShorten the timeError preventionTransmission systemsMicrocontrollerHealth index
Owner:WOODHEAD IND INC
Fieldbus control system based on Siemens controller and Omron controller
ActiveCN107807604ARealize data communicationEasy remote controlProgramme control in sequence/logic controllersAutomatic controlProfibus
The invention provides a fieldbus control system based on a Siemens controller and an Omron controller and belongs to the field of automatic control. The problem is solved that at present, the fieldbus control system based on the Siemens controller and the Omron controller cannot be established. The fieldbus control system comprises an upper monitoring PC, an upper master control system, a field lower control subsystem, a protocol converter, a field monitoring PC and several field devices. The upper master control system is a Siemens PCS7 system, and the Siemens PCS7 system adopts a PROFIBUS-DP fieldbus communication protocol. The field lower control subsystem is an Omron PLC system, and the Omron PLC system adopts a DeviceNet fieldbus communication protocol. The protocol converter is a gateway PD-100S. The upper monitoring PC and the Siemens PCS7 system are connected via Ethernet, the Siemens PCS7 system and the gateway PD-100S are connected through a PROFIBUS-DP bus, the Omron PLC system and the gateway PD-100S are connected through a DeviceNet bus, the Omron PLC system and the field monitoring PC are connected via Ethernet, and the several field devices are respectively connected with input terminals of the Omron PLC system.
Owner:SHANXI UNIV
ARM7-based MVB gateway and working method thereof
InactiveCN101908990ASolve interconnection problemsInnovative designNetwork connectionsBus networksTransceiverInterconnection
The invention discloses an ARM7-based MVB gateway and a working method thereof. The gateway comprises an MVB bus protocol controller, an MVB bus transceiver, an ARM7 central controller, a DeviceNet bus protocol controller and a Device Net bus transceiver, wherein the ARM7 central controller is bi-directionally connected with the MVB bus protocol controller and the DeviceNet bus protocol controller respectively; the MVB bus protocol controller is bi-directionally connected with the MVB bus transceiver; and the DeviceNet bus protocol controller is bi-directionally connected with the DeviceNet bus transceiver. Through the ARM7-based MVB gateway and the working method thereof, the data exchange between the MVB bus protocol controller and the DeviceNet protocol controller is realized by using the ARM7 central controller, and the interconnection problems of DeviceNet field buses of an MVB control network and a widely-used industrial control network special for a locomotive.
Owner:CHINA CNR LIMITED DALIAN ELECTRIC TRACTION R&D CENT
Communication device for rail transportation vehicle and method
The invention discloses a communication device for a rail transportation vehicle and a method. The device comprises a wire-to-board (WTB) card, a DEVICENET card and a central processing unit (CPU) card; the WTB card is used for receiving the WTB communication data sent by external WTB device and sending the WTB communication data to the CPU card, and receiving the WTB processing data sent by the CPU card and sending the WTB processing data to the external WTB device; the DEVICENET card is used for receiving the DEVICENET communication data sent by external DEVICENET device and sending the DEVICENET communication data to the CPU card, and receiving the DEVICENET processing data sent by the CPU card and sending the DEVICENET processing data to the external DEVICENET device; and the CPU card is used for identifying the type of the received data, and correspondingly transforms the data. According to the communication device and the method for the rail transportation vehicle, the communication between the WTB device and the DEVICENET can be realized.
Owner:CHINA CNR CORPORATION
Multi-arc and multi-wire submerged arc welding intelligent control system
InactiveCN109093233AEasy to operateRealize micro-adjustmentArc welding apparatusProgrammable logic controllerSimulation
The invention discloses a multi-arc and multi-wire submerged arc welding intelligent control system. The multi-arc and multi-wire submerged arc welding intelligent control system comprises an upper computer and a programmable logic controller. The upper computer is connected with the programmable logic controller in a communicating mode. The programmable logic controller is connected to welding power source and welding executing agencies of a plurality of welding machines. According to the multi-arc and multi-wire submerged arc welding intelligent control system, an industrial tablet with a touch function is adopted to replace a traditional submerged arc welding controller, matching issue, type-in and adjustment of technological parameters are realized by a virtual keyboard on a screen, the human-computer interaction effect is good, and the idealized tool usage requirements of what you see is what you get are realized; and a DeviceNet means of communication is applied to concentrate control of a plurality of electric arcs on an interface, users are facilitated to operate to realize micro adjustment of multiple electric arc linkage, automatic matching issue of the parameters, real-time comparative analysis, process automatic recording and generation and export of a diagram are realized, and the reliability and traceability of control of the welding process are improved.
Owner:WUXI SANHONG MACHINERY EQUIP
Low voltage apparatus communication protocol adapter
The invention relates to a low voltage apparatus communication protocol adapter comprising a dual microprocessor, dual Modbus RTU protocol conversion circuits, a Profibus DP, Device Net protocol conversion circuits, an off-chip data memory, a liquid crystal display and a keyboard. An on-chip universal asynchronous receiver transmitter of the dual microprocessor is connected to RS485 level conversion transceiver circuits of the dual Modbus RTU protocol conversion circuit and ProfibusDP, an on-chip controller local area network is connected with conversion transceiver circuits of the DeviceNet, and low-voltage apparatus data acquisition and bus command and event response can be completed; a 12 C communication module of the dual microprocessor and a 12 C-based off-chip data memory are connected, and data storage and extraction of processed low-voltage apparatus parameters. According to the technical scheme, a dual microprocessor and the caching technique are adopted, response time of other adapter during operation is shortened, and the low voltage apparatus communication protocol adapter can be used as a centralized controller, a network small-size server and an adapter; connection of utmost three types of buses can be completed, adaptability of low voltage apparatuses during networking is improved greatly, and users can assemble the adapter conveniently.
Owner:SHANGHAI MEILANRILAN ELECTRICAL APPLIANCE GRP WHOLE SET ELECTRICAL
Interface system for DeviceNet bus
InactiveCN102750137AEasy to debugEasy maintenanceSpecific program execution arrangementsData acquisitionProtocol Application
The invention provides an interface system for a DeviceNet bus. The interface system is arranged between a bottom layer functional unit and an application layer unit, the interface system provides a standard interface irrelevant to a DeviceNet bus device object for the application layer unit, and different details of the device object can be shielded. The interface system is divided into an upper portion and a lower portion, the upper portion is an IOServer module connected with the application layer unit, and the lower portion is an address mapping (ADMP) module for performing address mapping on the bottom layer functional unit. The IOServer module comprises a management interface of the DeviceNet bus. According to access requirements for the DeviceNet bus of the application layer unit, control connection is performed in the bottom layer functional unit so as to achieve connection and disconnection between a device below the DeviceNet bus and a host. The interface system for the DeviceNet bus can shield the different details of the DeviceNet bus, provides the same interface for the application layer unit, facilitates debugging and maintenance of the system, achieves data acquisition of integrated circuit (IC) devices on different semiconductor bottom layer units, improves production efficiency, and reduces production cost.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Relay extender for network bus
ActiveCN1749976ASimplify hardware designFunctionalElectric digital data processingDelayed timeData transmission
The extender for prolonging network bus includes main CPU unit, state indication unit, main power source loop, signal processing channel A, signal processing channel B, auxiliary power source and photoelectronic isolating loop. The circuits have the data transmission in the following order: data in the DeviceNet section A is transmitted to DeviceNet section B through port A, signal processing channel A, main CPU unit, signal processing channel B and port B; or vice versa. The present invention realizes the transparent data transmission between different network section. For increased network length and shortened delay time, the CPU has stored automatic baud rate detecting flow chart, signal sending flow chart, signal receiving flow chart and interruption flow chart, and the constituted software and hardware are combined for successful network extending.
Owner:SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP
Train fault recording device and method
InactiveCN103107913AImprove reliabilityImprove securityData switching by path configurationUser needsData storing
The invention discloses a train fault recording device and a method. The train fault recording device comprises a DEVICENET data acquisition unit, a DEVICENET board card and a central processing unit (CPU) board card. The DEVICENET data acquisition unit is used for collecting real-time monitoring data of a train and transmitting the real-time monitoring data to the DEVICENET board card. The DEVICENET board card is used for receiving the real-time monitoring data sent by the DEVICENET data acquisition unit and sending the real-time monitoring data to the CPU board card. The CPU board card comprises an Ethernet port and is used for receiving and storing the real-time monitoring data, taking the real-time monitoring data and sending the real-time monitoring data to a user side through the Ethernet port when users needs the real-time monitoring data. According to the train fault recording device and the method, the users can analyze the traveling conditions of the train according to the real-time monitoring data stored on the CPU board card to prevent a fault from happening again, so the reliability and safety of train operation can be enhanced.
Owner:CHINA CNR CORPORATION
Protector core and protection method for motor
InactiveCN102664386AReal-time monitoring of working conditionsReal-time monitoring and intelligent diagnosisEmergency protective circuit arrangementsPower flowSignal conditioning
The invention discloses a protector core for a motor. The protector core comprises a control device, a detection device, a signal conditioning device, a phase sequence detection device, a short-range serial port device, a remote DeviceNet communication device, a display panel device, an output relay device and a switching power device, wherein the signal conditioning device, the phase sequence detection device, the short-range serial port device, the remote DeviceNet communication device, the display panel device and the output relay device are connected with the control device; the signal conditioning device and the phase sequence detection device are connected with the detection device; and the switching power device provides direct current power for a protector. A working current signal of the motor is converted through the detection device, the signal conditioning device and the phase sequence detection device, the control device controls the output relay device and the display panel device according to various protection algorithms for a thermal overload, a phase sequence and the like to fulfill the aims of protection and field display, and working parameters of the protector are configured and monitored remotely and within a short range to fulfill the aims of intelligent failure control and diagnosis.
Owner:NO 13 ELECTRICAL APPLIANCES
Method for protocol conversion between robot and welding equipment and protocol conversion module
InactiveCN110809003ARealize seamless transmissionFast connection transfer speedTransmissionModbusBus
The invention discloses a method for protocol conversion between a robot and welding equipment and a protocol conversion module. The protocol conversion module is used for converting a devicenet protocol into a modbus protocol, and the protocol conversion module comprises a devicenet interface, a CAN bus conversion chip, an isolation circuit, a processor chip and a modbus interface which are connected in sequence. Received data is transmitted to the processor chip through the isolation circuit and the CAN bus conversion chip by using the deviceenet interface, and the data is transmitted to themodbus interface after being analyzed by the processor chip. According to the invention, seamless transmission of data from the devicenet slave station to the modbus master io is realized, and the connection transmission speed is faster. And previous plc conversion is not needed any more, so that the conversion cost is reduced.
Owner:湖州耀褡智能系统有限公司
Pet cage machining method based on intelligent self-positioning high-frequency welding system
InactiveCN106271004AIncrease productivityWelding/cutting auxillary devicesAuxillary welding devicesMachine controlLaser scanning
The invention provides a pet cage machining method based on an intelligent self-positioning high-frequency welding system. The method comprises following steps: firstly, a metal rod for assembling of a pet cage is prepared; secondly, the intelligent self-positioning high-frequency welding system is adopted to assemble the metal rod into the pet cage, the intelligent self-positioning high-frequency welding system is composed of a vision positioning system and a high-frequency welding machine, the vision positioning system is composed of a three-dimensional laser scanning instrument and an industrial control machine, the three-dimensional scanning vision system is formed, determining of the position of the metal rod is achieved, the high-frequency welding machine is communicated with the industrial control machine through a DeviceNet bus, the industrial control machine controls the high-frequency welding machine to carry out high-frequency welding, and the metal rod is assembled into the pet cage. The pet cage machining method based on the intelligent self-positioning high-frequency welding system is high in production efficiency and capable of producing the pet cage meeting the standard.
Owner:南通天宇休闲用品有限公司
General frequency converter control module based on DeviceNet field bus
PendingCN111208773AReduce volumeReduce manufacturing costProgramme controlComputer controlAutomatic controlControl signal
The invention discloses a general frequency converter control module based on a DeviceNet field bus, and belongs to the technical field of communication control. The device comprises an input / output interface, an embedded processor, a DevcieNet protocol conversion module, and a DevcieNet network interface. One end of the input / output interface is externally connected with a frequency converter, the other end is connected with the embedded processor. The embedded processor is in communication connection with the DevcieNet protocol conversion module. The DevcieNet protocol conversion module is in communication connection with the DevcieNet network interface and is in communication with the DevcieNet network through the DevcieNet network interface. Due to the fact that the digital quantity input and output interface and the analog quantity input and output interface are provided, the module is directly connected with the frequency converter in a simple connection mode, control signals ofthe frequency converter are converted into DeviceNet field bus control signals, and all PLC systems supporting DevcieNet field buses can be conveniently connected to achieve automatic control.
Owner:成都兴蓉沱源自来水有限责任公司
Encoder cross-comparison device of refueling machine
ActiveCN109540191ALow costEasy to recycleNuclear energy generationReactor fuel elementsFiberNuclear power
The invention relates to an encoder cross-comparison device of a refueling machine, and belongs to the technical field of nuclear power station maintenance. The device comprises n encoders, a shaft coupling, a DEVICENET bus, a DEVICENET module, a CPU module, a power supply module, an industrial control computer and fibers. A fault encoder can be determined from the multiple encoders by cross comparison in the offline condition, and the enterprise cost can be reduced a lot; more sound encoders can be recovered and used, the maintenance time is reduced a lot, and a nuclear power maintenance staff receives radiation in less time; a fault of the single encoder can be also determined, and the sound encoder can be recovered; and power supply for a tester is flexible, and the whole system can beerected simply onsite. The device can help new staff of nuclear power and working-group members of a partner enterprise master basic skills including IP address setting of the CPU module, online download of configuration software and DEVICENET communication protocol based encoder maintenance.
Owner:CNNC FUJIAN FUQING NUCLEAR POWER
DeviceNet-based weighing instrument
InactiveCN105486388AReal-time data communicationEfficient data communicationWeighing apparatus for continuous material flowMicrocontrollerOpto electronic
A DeviceNet-based weighing instrument. The weighing instrument has the advantages of digitization, intelligentization and communicationization, realizes long distance, high speed, reliability, flexibility and low cost of an electronic belt scale control system, and improves metering performance. The DeviceNet-based weighing instrument comprises a power supply system module, a sensor input module, an analog output module, a Nixie tube display module, a keyboard interface and a DeviceNet bus communication interface, and is structurally characterized in that the sensor input module includes a weighing sensor and a speed sensor, collects a voltage signal, and amplifies the voltage signal through processing of an amplifier circuit of a signal conditioning circuit and photoelectric isolator; and the photoelectric isolator and a keyboard interface are connected with a single-chip microcomputer, an output end of the single-chip microcomputer is connected with a PWM output module, an LED display module and a DeviceNet processor, and the DeviceNet processor performs isolation and transceiving through a CAN bus.
Owner:陶建臣
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