Ethernet bus communication system based on communication card

Abstract

The utility model discloses an Ethernet bus communication system based on communication cards, which comprises an upper computer and a plurality of industrial devices, each industrial device is integrated with a communication card, each communication card comprises two network ports, the plurality of industrial devices are connected with each other through the network ports of the communication cards to form a link, and the link is connected with the upper computer. And the upper computer is connected with the link and is used for monitoring, controlling and debugging the industrial equipment in the link. According to the Ethernet bus communication system based on the communication card, the upper computer is connected with the link composed of a plurality of industrial devices, data interaction between the upper computer and the industrial devices where the communication card is located can be achieved, and therefore monitoring, control and debugging of the industrial devices in the link are achieved, the convenience of debugging and monitoring of the devices is improved, and the working efficiency is improved. The problem of low operation and maintenance efficiency of the existing industrial Ethernet is solved; in addition, mutual connection among a plurality of industrial devices is realized through the internet access of the communication card, so that on-site wiring is simplified, and the cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial ethernet communication technical field especially relates to a kind of ethernet bus communication system based on communication card. BACKGROUND

[0002] Current industrial ethernet, mainly through PLC control each device, during on-site debugging or when on-site failure, maintenance personnel need to hold computer to device near end to carry out debugging by debugging software, and operation and maintenance efficiency is low. SUMMARY

[0003] The utility model solves the technical problems to provide a kind of ethernet bus communication system based on communication card, to solve the problem of low operation and maintenance efficiency of current industrial ethernet.

[0004] To solve the above technical problems, the utility model adopts the technical scheme as follows:

[0005] A kind of ethernet bus communication system based on communication card, including a host computer and multiple industrial devices, each industrial device is integrated with communication card, each communication card includes 2 net ports, multiple industrial devices are connected by the net port of communication card to form link between devices, host computer is connected with link, for monitoring, control and test and measurement to the industrial device in link.

[0006] Preferably, link adopts star link, linear link, ring link or tree link.

[0007] Preferably, ethernet bus communication system based on communication card further includes switch, multiple industrial devices are connected with switch to form star link, host computer is connected with switch to access star link.

[0008] Preferably, multiple industrial devices are connected by the net port of communication card in sequence to form linear link, host computer is connected with one end of linear link to access linear link.

[0009] Preferably, ethernet bus communication system based on communication card further includes PLC controller, PLC controller is connected with the other end of linear link.

[0010] Preferably, ethernet bus communication system based on communication card further includes switch, multiple industrial devices are connected by the net port of communication card in sequence to form linear link, one end of linear link is connected to one net port of switch, the other end of linear link is connected to another net port of switch to form ring link, host computer is connected with switch to access ring link.

[0011] Preferably, the Ethernet bus communication system based on the communication card further comprises a switch, and the industrial devices are connected in sequence through the network ports of the communication cards to form a linear link, one end of the linear link and the rest of the industrial devices are connected with the switch to form a tree link, and the host computer is connected with the switch to access the tree link.

[0012] Preferably, the industrial device is a converter.

[0013] Preferably, the plurality of industrial devices comprise the same type of devices.

[0014] Preferably, the plurality of industrial devices comprise different types of devices.

[0015] The Ethernet bus communication system based on the communication card, the host computer is connected with the link composed of the plurality of industrial devices, and data interaction between the host computer and the industrial device with the communication card can be realized, so that the monitoring, control and commissioning of the industrial devices in the link can be realized, the convenience of device commissioning and monitoring is improved, and the problem of low efficiency of existing industrial Ethernet operation and maintenance is solved; in addition, the interconnection between the plurality of industrial devices is realized through the network ports of the communication cards, which not only simplifies the field wiring, but also effectively reduces the cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card in an embodiment of the present application;

[0017] Figure 2 Fig. 2 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card in another embodiment of the present application;

[0018] Figure 3 Fig. 3 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card in another embodiment of the present application;

[0019] Figure 4 Fig. 4 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card in another embodiment of the present application;

[0020] Figure 5 Fig. 5 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card when a communication card of one of the industrial devices is damaged in the present application;

[0021] Figure 6 Fig. 6 is a schematic diagram of a link structure of an Ethernet bus communication system based on a communication card when a network port of a communication card of one of the industrial devices is damaged in the present application. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to more clearly understand the purpose, technical scheme and advantages of the present application, the present application will be further described in conjunction with the drawings and embodiments.

[0023] This utility model provides an Ethernet bus communication system based on a communication card, including a host computer and multiple industrial devices. Each industrial device integrates a communication card, and each communication card includes two network ports. The multiple industrial devices are interconnected through the network ports of the communication cards to form a link. The host computer is connected to the link and is used to monitor, control, and debug the industrial devices in the link.

[0024] Each communication card has two network ports, both configured with the same IP address. Multiple industrial devices are interconnected through these network ports to form links, which can be star, linear, ring, or tree topologies.

[0025] like Figure 1 As shown, in one embodiment of this utility model, the Ethernet bus communication system based on the communication card further includes a switch, and the multiple industrial devices (devices A, B, and C) are respectively connected to the switch to form a star link, and the host computer is connected to the switch to access the star link.

[0026] like Figure 2 As shown, in another embodiment of this utility model, the multiple industrial devices (devices 1-5) are connected sequentially through the network ports of communication cards to form a linear link, and the host computer is connected to one end of the linear link to access the linear link.

[0027] like Figure 3 As shown, in another embodiment of this utility model, the Ethernet bus communication system based on the communication card further includes a switch. The multiple industrial devices (devices 1-5) are connected sequentially through the network ports of the communication card to form a linear link. One end of the linear link is connected to one network port of the switch, and the other end of the linear link is connected to another network port of the switch to form a ring link. The host computer is connected to the switch and accesses the ring link.

[0028] like Figure 4 As shown, in another embodiment of this utility model, the Ethernet bus communication system based on the communication card further includes a switch. Some industrial devices (devices 1-3, 6) are connected sequentially through the network ports of the communication card to form a linear link. One end of the linear link and the remaining industrial devices (devices 4, 5) are respectively connected to the switch to form a tree link. The host computer is connected to the switch to access the tree link.

[0029] The multiple industrial devices of this utility model may include devices of the same type or devices of different types. For example, Figure 1 The two devices A in the text are of the same type of industrial equipment.Figure 1 The two devices B in the link are also industrial devices of the same type, and the devices A, B and C are industrial devices of different types.

[0030] The industrial device can be a current transformer or the like. When the industrial device is a current transformer, the multiple industrial devices in the link include current transformers of the same type, such as wind power current transformers, transmission current transformers, photovoltaic current transformers and the like, or the multiple industrial devices in the link include current transformers of different types, such as wind power current transformers, transmission current transformers, photovoltaic current transformers and the like.

[0031] The industrial device is a current transformer, the multiple industrial devices in the link include current transformers of the same type, such as wind power current transformers, transmission current transformers, photovoltaic current transformers and the like, or the multiple industrial devices in the link include current transformers of different types, such as wind power current transformers, transmission current transformers, photovoltaic current transformers and the like.

[0032] When the host computer and the industrial devices in the link perform data interaction, the host computer sends the data frames agreed by both parties to the industrial devices, and the industrial devices perform corresponding operations and / or return related data according to the data frames sent by the host computer, so as to complete the data interaction. The data interaction content includes but is not limited to clock calibration, parameter setting, parameter solidification, batch data acquisition, oscilloscope data transmission, event recording, fault recording and the like.

[0033] For example, there are three industrial devices on site, and the configured IPs are 192.168.0.2, 192.168.0.3 and 192.168.0.4. If it is necessary to modify a parameter value of the device 192.168.0.4, the specific process is as follows:

[0034] (1) The host computer software switches the page to the parameter list page of the device 192.168.0.4;

[0035] (2) Select the parameter group to be set and find the corresponding parameter or directly search for the parameter whose parameter value needs to be modified;

[0036] (3) Click or double-click the current value position of the parameter and input the value to be modified;

[0037] (4) Encapsulate and issue the parameter setting instruction according to the private protocol;

[0038] (5)192.168.0.4 equipment receives the setting parameter frame (including parameter setting instruction) and carries out corresponding parameter setting operation;

[0039] (6)192.168.0.4 equipment returns the setting success or setting failure data frame agreed by both parties to the upper computer.

[0040] The Ethernet bus communication system based on communication cards provided by the utility model realizes the data interaction between the upper computer and the industrial equipment where the communication card is located, so that the monitoring, control and commissioning of the industrial equipment in the link are realized, the convenience of equipment commissioning and monitoring is improved, the problem of low efficiency of existing industrial Ethernet operation and maintenance is solved, in addition, the mutual connection between multiple industrial equipments is realized through the network port of the communication card, not only the field wiring is simplified, but also the cost is effectively reduced.

[0041] Figure 5 The utility model discloses a link structure schematic diagram when one of industrial equipment's communication cards of the utility model is shown. Figure 5 As shown in the drawing, if the communication card of a certain industrial equipment in the link is broken, the connection of the industrial equipment can be disconnected, and other industrial equipments form a new link.

[0042] Figure 6 The utility model discloses a link structure schematic diagram when one of industrial equipment's communication cards of the utility model is shown. Figure 6 As shown in the drawing, if one of the ports of a certain communication card in the link is broken, the other port can be directly connected to the upper computer, and the industrial equipment is commissioned and monitored alone, and other industrial equipments form a new link.

[0043] The Ethernet bus communication system based on communication cards provided by the utility model can form a new link to continue running when the industrial equipment in the link breaks down, and the controllability and flexibility of the whole link are greatly enhanced.

[0044] In some preferred embodiments of the utility model, the Ethernet bus communication system based on communication cards further includes a PLC controller. Figure 2 As shown in the drawing, the Ethernet bus communication system based on communication cards includes a PLC controller, and the PLC controller is connected with the other end of the linear link.

[0045] The PLC controller controls each industrial device in the link and can also assign an IP address to each communication card. The host computer in the link is installed with host computer software for monitoring, debugging and controlling all industrial devices in the link. The host computer software can communicate with multiple industrial devices simultaneously based on the IP of the communication card network interface and the newly added monitoring port number, or communicate with one of the industrial devices individually, monitor waveform data of multiple industrial devices, control parameters of the industrial devices, obtain event records of the industrial devices, obtain and analyze fault recording, etc.

[0046] The above merely describes preferred embodiments of the present application, but does not limit the present application in any form. Those skilled in the art can make various equivalent changes and improvements on the basis of the above embodiments, and any equivalent changes or modifications made within the scope of the claims shall fall within the protection scope of the present application.

Claims

1. An Ethernet bus communication system based on a communication card, characterized in that: The system comprises a host computer and a plurality of industrial devices, each of which is integrated with a communication card, each of the communication cards comprises two network ports, the plurality of industrial devices are connected with each other through the network ports of the communication cards to form a link, and the host computer is connected with the link to monitor, control and test the industrial devices in the link.

2. The communication card based Ethernet bus communication system of claim 1, wherein: The link adopts a star link, a linear link, a ring link or a tree link.

3. The communication card based Ethernet bus communication system of claim 1, wherein: The communication system further comprises a switch, the plurality of industrial devices are connected with the switch to form a star link, and the host computer is connected with the switch to access the star link.

4. The communication card based Ethernet bus communication system of claim 1, wherein: The plurality of industrial devices are connected with each other through the network ports of the communication cards to form a linear link, and the host computer is connected with one end of the linear link to access the linear link.

5. The communication card based Ethernet bus communication system of claim 4, wherein: The communication system further comprises a PLC controller, and the PLC controller is connected with the other end of the linear link.

6. The communication card based Ethernet bus communication system of claim 1, wherein: The communication system further comprises a switch, the plurality of industrial devices are connected with each other through the network ports of the communication cards to form a linear link, one end of the linear link is connected to one network port of the switch, the other end of the linear link is connected to another network port of the switch to form a ring link, and the host computer is connected with the switch to access the ring link.

7. The communication card based Ethernet bus communication system of claim 1, wherein: The communication system further comprises a switch, part of the industrial devices are connected with each other through the network ports of the communication cards to form a linear link, one end of the linear link and the rest of the industrial devices are connected with the switch to form a tree link, and the host computer is connected with the switch to access the tree link.

8. The communication card based Ethernet bus communication system according to any one of claims 1 to 7, wherein: The industrial device is a converter.

9. The communication card based Ethernet bus communication system according to any one of claims 1 to 7, wherein: The plurality of industrial devices comprise the same type of devices.

10. The communication card based Ethernet bus communication system according to any one of claims 1 to 7, wherein: The plurality of industrial devices comprise different types of devices.

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