EtherCAT bus network switch, laser processing system and data diagnosis system

Abstract

The utility model relates to the field of EtherCAT buses, and discloses an EtherCAT bus network switch, a laser processing system and a data diagnosis system. The EtherCAT bus network switch comprises a plurality of EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one optical fiber interface and / or at least one EtherCAT-P interface, wherein the plurality of EtherCAT data converters, the at least one POE interface, the at least one RJ45 network interface, the at least one optical fiber interface and / or the at least one EtherCAT-P interface are electrically connected in sequence. Each POE interface, each RJ45 network interface, each optical fiber interface and / or each EtherCAT-P interface are electrically connected with an EtherCAT data converter respectively, and the EtherCAT data converters are electrically connected with the POE interfaces, the RJ45 network interfaces, the optical fiber interfaces and / or the EtherCAT-P interfaces respectively to realize real-time exchange of network data with the EtherCAT bus laser equipment which is electrically connected with the POE interfaces, the RJ45 network interfaces, the optical fiber interfaces and / or the EtherCAT-P interfaces respectively. Therefore, the EtherCAT bus network switch can realize multiple paths of EtherCAT bus channels, the flexible connection of equipment under different topological structures is met, and the real-time exchange of network data is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of EtherCAT bus, in particular to an EtherCAT bus network switch, a laser processing system and a data diagnosis system. Background Technique

[0002] At present, during the on-site use of EtherCAT bus laser slave products and motion control driver products, due to different device distances or device connection methods, the topology structure needs to support multiple methods, for example, daisy-chain line type, tree type, star type.

[0003] Generally, the EtherCAT bus uses an RJ45 network interface. The twisted pair used by the RJ45 network interface is shielded Cat5e or Cat6 transmission medium. Because it is a level signal transmission, the communication distance is limited, and the signal quality of the Ethernet eye diagram tested by the oscilloscope is not good. Therefore, the EtherCAT bus slave product needs to have multiple network ports for transfer and transit. However, general laser and driver slave products only have two network ports, one in and one out, which can only support the daisy-chain line type topology and cannot meet the requirement that the EtherCAT bus slave product has multiple network ports for transfer and transit. Moreover, the welding head and cutting head of the EtherCAT bus, as the end devices of the EtherCAT bus laser processing system, generally need to be dust-proof and shock-proof sealed, and an M12 interface needs to be used to implement EtherCAT-P or POE (Power Over EtherCAT, power supply through EtherCAT).

[0004] At present, the EtherCAT bus switch cannot implement the matching conversion function between the RJ45 network interface, EtherCAT-P interface and POE interface of the EtherCAT bus, and does not have a conversion module for implementing multiple interfaces to realize the switch function. Summary of the Utility Model

[0005] The embodiments of the utility model aim to provide an EtherCAT bus network switch, a laser processing system and a data diagnosis system, which can solve the problem that the existing EtherCAT bus switch cannot implement the matching conversion function between the RJ45 network interface, EtherCAT-P interface and POE interface of the EtherCAT bus.

[0006] To solve the above technical problems, an embodiment of the first aspect of the present utility model provides an EtherCAT bus network switch, including: a plurality of sequentially electrically connected EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one optical fiber interface, and / or at least one EtherCAT-P interface; each of the POE interface, each of the RJ45 network interface, each of the optical fiber interface, and / or each of the EtherCAT-P interface is electrically connected to one of the EtherCAT data converters, and the EtherCAT data converters are respectively electrically connected to the EtherCAT bus laser devices electrically connected to the POE interface, the RJ45 network interface, the optical fiber interface, and / or the EtherCAT-P interface to realize real-time exchange of network data.

[0007] Optionally, the EtherCAT data converter includes a first port, a second port, and a third port; the sequential electrical connection of a plurality of EtherCAT data converters includes: the third port of the previous EtherCAT data converter is electrically connected to the first port of the next EtherCAT data converter.

[0008] Optionally, the EtherCAT bus network switch further includes a plurality of PHY modules, each of the PHY modules is electrically connected to the second port of each of the EtherCAT data converters, and after the PHY module is electrically connected to the second port of the EtherCAT data converter, the PHY module is further electrically connected to the POE interface, the RJ45 network interface, the optical fiber interface, or the EtherCAT-P interface respectively.

[0009] Optionally, the EtherCAT bus network switch further includes a plurality of isolation transformers, the isolation transformers are electrically connected to the PHY modules, and after the isolation transformers are electrically connected to the PHY modules, the isolation transformers are further electrically connected to the POE interface, the RJ45 network interface, or the EtherCAT-P interface respectively.

[0010] Optionally, the isolation transformers are electrically connected to the EtherCAT data converters, and after the isolation transformers are electrically connected to the EtherCAT data converters, the isolation transformers are further electrically connected to the RJ45 network interfaces.

[0011] Optionally, the EtherCAT bus network switch further includes a number of operating activation digital input / output interfaces, and the EtherCAT data converter or the PHY module outputs signals through the operating activation digital input / output interfaces to connect to an external indicator light, indicating the real-time operating state of the EtherCAT data converter or the PHY module.

[0012] Optionally, the EtherCAT bus network switch further includes a power supply circuit, and the power supply circuit supplies power to the EtherCAT data converter, the PHY module, the POE interface, and / or the EtherCAT-P interface respectively.

[0013] Correspondingly, an embodiment of the second aspect of the present invention provides a laser processing system, including: a laser control system, an EtherCAT bus network switch, and an EtherCAT bus laser device. The EtherCAT bus network switch is respectively connected to the laser control system and the EtherCAT bus laser device, and the laser control system realizes redundant communication control of the EtherCAT bus laser device through the EtherCAT bus network switch.

[0014] Optionally, the laser processing system further includes a digital cloud intelligent factory system. The digital cloud intelligent factory system is communicatively connected to the laser control system, and the digital cloud intelligent factory system communicates with the laser control system to read and control, and performs online detection and overall management of the EtherCAT bus laser device through digital visualization technology.

[0015] Correspondingly, an embodiment of the third aspect of the present invention provides a data diagnosis system, including: a diagnosis device and an EtherCAT bus network switch, and the EtherCAT bus network switch is electrically connected to the diagnosis device;

[0016] The EtherCAT bus network switch is used to connect the system to be diagnosed with data frames to the diagnosis device;

[0017] The diagnosis device is connected to the system to be diagnosed with data frames through the EtherCAT bus network switch, reads the EtherCAT bus data frames in the system to be diagnosed with data frames, and diagnoses the real-time performance of the data sent by the system to be diagnosed with data frames according to the EtherCAT bus data frames.

[0018] Compared with the prior art, the present utility model provides an EtherCAT bus network switch, a laser processing system and a data diagnosis system. The EtherCAT bus network switch includes: a plurality of sequentially electrically connected EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one optical fiber interface and / or at least one EtherCAT-P interface; each POE interface, each RJ45 network interface, each optical fiber interface and / or each EtherCAT-P interface is electrically connected to an EtherCAT data converter respectively, and the EtherCAT data converter is electrically connected to an EtherCAT bus laser device which is respectively connected to the POE interface, the RJ45 network interface, the optical fiber interface and / or the EtherCAT-P interface to realize real-time exchange of network data. Thus, the EtherCAT bus network switch can implement multiple EtherCAT bus channels, meet the flexible connection of devices under different topological structures, and realize the real-time exchange of network data. Thus, the problem that the existing EtherCAT bus switch cannot implement the matching conversion function between the RJ45 network interface, the EtherCAT-P interface and the POE interface of the EtherCAT bus can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0020] Figure 1 is a schematic structural diagram of an EtherCAT bus network switch provided by the present utility model;

[0021] Figure 2 is a detailed schematic structural diagram of an EtherCAT bus network switch provided by the present utility model;

[0022] Figure 3 is a schematic structural diagram of a laser processing system provided by the present utility model;

[0023] Figure 4 is a schematic structural diagram of a data diagnosis system provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To facilitate the understanding of the present utility model, the present utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in this specification in the description of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0026] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] EtherCAT, whose full name is Ethernet for Control Automation Technology, is an automation control technology based on Ethernet. It is a real-time Ethernet technology introduced by Beckhoff, a German company. It is an open architecture, Ethernet-based fieldbus system and a deterministic industrial Ethernet. EtherCAT was first introduced at the Hannover Messe in Germany in 2003 and became the 12th fieldbus standard announced by IEC61158 in 2007. In the EtherCAT protocol, the traditional Ethernet protocol is modified by filling the EtherCAT data frame in the standard Ethernet data frame and using special frame types for marking, making it have good compatibility with the standard Ethernet. EtherCAT fully complies with the Ethernet standard. EtherCAT devices can coexist with other Ethernet devices in the same network; standard components such as ordinary Ethernet network cards, switches, and routers can all be used in EtherCAT. The EtherCAT network can support multiple network topologies, such as linear, star, and tree topologies. EtherCAT has a wide range of applicability, and any control unit with an ordinary Ethernet controller can be used as an EtherCAT master station. The EtherCAT network can use ordinary Ethernet cables or optical fibers, and at the same time, EtherCAT can also use the low-voltage differential signal LUDS (Low Voltage Differential Signaling) line designed by Beckhoff for delayed communication.

[0028] At present, during the on-site use of EtherCAT bus laser slave products and motion control driver products, due to different device distances or device connection methods, the topology needs to support multiple ways, for example, daisy-chain linear, tree-shaped, star-shaped. Generally, the EtherCAT bus uses RJ45 network interfaces, and the twisted pair used by RJ45 network interfaces is shielded Category 5e or Category 6 transmission medium. Because it is a level signal transmission, the communication distance is limited, and the signal quality of the Ethernet eye diagram tested by the oscilloscope is not good. Therefore, the EtherCAT bus slave product needs to have multiple network interfaces for transfer and relay. However, general laser and driver slave products only have two network interfaces, one in and one out, which can only support the daisy-chain linear topology and cannot meet the requirement that the EtherCAT bus slave product has multiple network interfaces for transfer and relay. Therefore, an EtherCAT bus switch with multiple RJ45 network interfaces is needed. Through the transfer of the switch with multiple RJ45 network interfaces, each slave device can be freely and conveniently connected to the system network. In addition, the switch can be used as a relay to convert to a fiber optic interface, and the fiber optic can transmit for several kilometers, improving the communication distance of the system. In addition, the welding head and cutting head of the EtherCAT bus, as the end devices of the EtherCAT bus laser processing system, generally need to be dust-proof and vibration-proof sealed, and an M12 interface needs to be used to implement EtherCAT-P or POE. Therefore, the matching conversion function between the RJ45 network interface, EtherCAT-P interface, POE interface, etc. of the EtherCAT bus also needs to be converted by a switch. However, there is no conversion module with multiple interfaces on the market for the EtherCAT bus switch to implement the above switch functions.

[0029] In one embodiment, as Figure 1 shown, the present utility model provides an EtherCAT bus network switch 10. The EtherCAT bus network switch 10 includes: a plurality of successively electrically connected EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one fiber optic interface, and / or at least one EtherCAT-P interface; each POE interface, each RJ45 network interface, each fiber optic interface, and / or each EtherCAT-P interface is electrically connected to an EtherCAT data converter respectively, and the EtherCAT data converter is electrically connected to an EtherCAT bus laser device respectively connected to the POE interface, RJ45 network interface, fiber optic interface, and / or EtherCAT-P interface to realize real-time exchange of network data.

[0030] In this embodiment, by providing an EtherCAT bus network switch, which includes: several sequentially electrically connected EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one optical fiber interface, and / or at least one EtherCAT-P interface; each POE interface, each RJ45 network interface, each optical fiber interface, and / or each EtherCAT-P interface is electrically connected to an EtherCAT data converter respectively, and the EtherCAT bus laser device electrically connected to the POE interface, RJ45 network interface, optical fiber interface, and / or EtherCAT-P interface by the EtherCAT data converter realizes real-time exchange of network data. Thus, the EtherCAT bus network switch can implement multiple EtherCAT bus channels, meet the flexible connection of devices under different topological structures, and realize the real-time exchange of network data. Thus, the problem that the existing EtherCAT bus switch cannot implement the matching conversion function between the RJ45 network interface, EtherCAT-P interface, and POE interface of the EtherCAT bus can be solved.

[0031] In one embodiment, the EtherCAT bus network switch includes several sequentially electrically connected EtherCAT data converters.

[0032] Specifically, the EtherCAT data converter includes a first port, a second port, and a third port.

[0033] The sequential electrical connection of several EtherCAT data converters includes: the third port of the previous EtherCAT data converter is electrically connected to the first port of the next EtherCAT data converter. Specifically: the third port of the first EtherCAT data converter is electrically connected to the first port of the second EtherCAT data converter, the third port of the second EtherCAT data converter is electrically connected to the first port of the third EtherCAT data converter, the third port of the third EtherCAT data converter is electrically connected to the first port of the fourth EtherCAT data converter, and the remaining EtherCAT data converters are connected in sequence...

[0034] For example, Figure 2As shown, the EtherCAT data converter can be an EtherCAT slave controller (EtherCAT SubDevice Controller or EtherCAT Slave Controller, ESC). The EtherCAT slave controller can implement the EtherCAT data link layer protocol, process EtherCAT data frames, and provide a data interface for the slave control device. When the MCU (Microcontroller Unit) does not support EtherCAT, the EtherCAT slave controller selects a serial (SPI, Serial Peripheral Interface) communication method to communicate with the MCU. The EtherCAT slave controller is responsible for processing EtherCAT data frames and using a dual-port storage space, including a 4KB register space and a 69KB process data space, to achieve data exchange between the EtherCAT master and slave. Each EtherCAT slave controller shifts and reads / writes data frames in sequence according to their physical positions on the loop.

[0035] In Figure 2 it, the EtherCAT bus network switch includes 13 EtherCAT slave controllers (ESC1 - ESC13). The 13 EtherCAT slave controllers are electrically connected in sequence as follows: the third port of the previous EtherCAT slave controller is electrically connected to the first port of the next EtherCAT slave controller, thus enabling 14 EtherCAT bus channels to meet the flexible connection of devices under different topologies and achieve real-time exchange of network data. Specifically:

[0036] The third port of the 1st EtherCAT slave controller is electrically connected to the first port of the 2nd EtherCAT slave controller, and the second port of the 1st EtherCAT slave controller outputs the 1st EtherCAT bus channel;

[0037] The third port of the 2nd EtherCAT slave controller is electrically connected to the first port of the 3rd EtherCAT slave controller, and the second port of the 2nd EtherCAT slave controller outputs the 2nd EtherCAT bus channel;

[0038] The third port of the 3rd EtherCAT slave controller is electrically connected to the first port of the 4th EtherCAT slave controller, and the second port of the 3rd EtherCAT slave controller outputs the 3rd EtherCAT bus channel;

[0039] The third port of the fourth EtherCAT slave controller is electrically connected to the first port of the fifth EtherCAT slave controller, and the second port of the fourth EtherCAT slave controller outputs the fourth EtherCAT bus channel;

[0040] The third port of the fifth EtherCAT slave controller is electrically connected to the first port of the sixth EtherCAT slave controller, and the second port of the fifth EtherCAT slave controller outputs the fifth EtherCAT bus channel;

[0041] The third port of the sixth EtherCAT slave controller is electrically connected to the first port of the seventh EtherCAT slave controller, and the second port of the sixth EtherCAT slave controller outputs the sixth EtherCAT bus channel;

[0042] The third port of the seventh EtherCAT slave controller is electrically connected to the first port of the eighth EtherCAT slave controller, and the second port of the seventh EtherCAT slave controller outputs the seventh EtherCAT bus channel;

[0043] The third port of the eighth EtherCAT slave controller is electrically connected to the first port of the ninth EtherCAT slave controller, and the second port of the eighth EtherCAT slave controller outputs the eighth EtherCAT bus channel;

[0044] The third port of the ninth EtherCAT slave controller is electrically connected to the first port of the tenth EtherCAT slave controller, and the second port of the ninth EtherCAT slave controller outputs the ninth EtherCAT bus channel;

[0045] The third port of the tenth EtherCAT slave controller is electrically connected to the first port of the eleventh EtherCAT slave controller, and the second port of the tenth EtherCAT slave controller outputs the tenth EtherCAT bus channel;

[0046] The third port of the eleventh EtherCAT slave controller is electrically connected to the first port of the twelfth EtherCAT slave controller, and the second port of the eleventh EtherCAT slave controller outputs the eleventh EtherCAT bus channel;

[0047] The third port of the twelfth EtherCAT slave controller is electrically connected to the first port of the thirteenth EtherCAT slave controller, and the second port of the twelfth EtherCAT slave controller outputs the twelfth EtherCAT bus channel;

[0048] The second port of the 13th EtherCAT slave controller outputs the 13th EtherCAT bus channel, and the third port of the 13th EtherCAT slave controller can continue to output the 14th EtherCAT bus channel; (Since two PHY chips are built into the EtherCAT slave controller and two network interfaces can be directly externally expanded, the 13th EtherCAT slave controller can output two EtherCAT bus channels).

[0049] In one embodiment, the EtherCAT bus network switch 10 includes at least one POE interface, at least one RJ45 network interface, at least one fiber optic interface, and / or at least one EtherCAT-P interface.

[0050] For example, as Figure 2 shown, the EtherCAT bus network switch 10 includes: 2 POE interfaces, 8 RJ45 network interfaces, 2 fiber optic interfaces, and 2 EtherCAT-P interfaces, which can meet the transfer of different hardware physical layer interfaces, meet the flexible connection of devices under different topological structures, and realize the real-time exchange of network data.

[0051] The POE (Power Over EtherCAT, powered by EtherCAT) interface is an M12 terminal and can be powered through the EtherCAT bus. In the present utility model, the EtherCAT bus network switch can be electrically connected to the cutting head through the POE interface.

[0052] The EtherCAT-P interface is an M8 terminal, which integrates EtherCAT communication and power system in a standard four-core Ethernet cable. The EtherCAT-P interface can provide a 24V DC power supply for the slaves, sensors, and actuators connected thereto, and can provide a maximum current of 3A for the connected components respectively. The current is directly injected into the conductors of the 100Mbit / s cable, thus enabling a very economical and compact connection. At the same time, the EtherCAT-P interface retains all the advantages of EtherCAT, such as: free selection of network topology, high speed, high bandwidth utilization, instant message processing, high-precision synchronization, and a wide range of diagnostics. EtherCAT-P has the advantages of connecting small, remote I / O sites to the terminal box and realizing distributed processing of local I / O components. In the present utility model, the EtherCAT bus network switch can be electrically connected to the welding head through the EtherCAT-P interface.

[0053] The RJ45 network interface is a standard 8-bit modular network interface. In the present utility model, the EtherCAT bus network switch can be electrically connected to a laser control system, a light shutter, a laser process control card, and a cutting laser through the RJ45 network interface.

[0054] The fiber optic interface is a physical interface used to connect fiber optic cables. In the present utility model, the EtherCAT bus network switch can be connected to a welding laser through the fiber optic interface.

[0055] In one embodiment, as Figure 2 shown, the EtherCAT bus network switch 10 further includes a plurality of PHY modules, and each PHY module is electrically connected to the second port of each EtherCAT data converter.

[0056] Specifically, the PHY module is electrically connected to the second port of the EtherCAT data converter. After connection, the PHY module is further electrically connected to a POE interface, an RJ45 network interface, a fiber optic interface, or an EtherCAT-P interface respectively, that is: after a PHY module is electrically connected to the second port of an EtherCAT data converter, it is also electrically connected to a POE interface; or, after a PHY module is electrically connected to the second port of an EtherCAT data converter, it is also electrically connected to an RJ45 network interface; or, after a PHY module is electrically connected to the second port of an EtherCAT data converter, it is also electrically connected to a fiber optic interface; or, after a PHY module is electrically connected to the second port of an EtherCAT data converter, it is also electrically connected to an EtherCAT-P interface.

[0057] For example, as Figure 2 shown, the EtherCAT data converter is an EtherCAT slave controller (ESC), and the PHY module is a PHY chip.

[0058] The EtherCAT bus network switch includes 13 EtherCAT slave controllers (ESC1 - ESC13) and 13 PHY chips (PHY chip 1 - PHY chip 13), and the 13 EtherCAT slave controllers are electrically connected in sequence.

[0059] The third port of the first EtherCAT slave controller is electrically connected to the first port of the second EtherCAT slave controller, the second port of the first EtherCAT slave controller is electrically connected to the first PHY chip, the first PHY chip is electrically connected to the first RJ45 network interface, and the first RJ45 network interface outputs the first EtherCAT bus channel;

[0060] The third port of the second EtherCAT slave controller is electrically connected to the first port of the third EtherCAT slave controller. The second port of the second EtherCAT slave controller is electrically connected to the second PHY chip. The second PHY chip is electrically connected to 21 RJ45 network interfaces. The second RJ45 network interface outputs the second EtherCAT bus channel;

[0061] The third port of the third EtherCAT slave controller is electrically connected to the first port of the fourth EtherCAT slave controller. The second port of the third EtherCAT slave controller is electrically connected to the third PHY chip. The third PHY chip is electrically connected to the third RJ45 network interface. The third RJ45 network interface outputs the third EtherCAT bus channel;

[0062] The third port of the fourth EtherCAT slave controller is electrically connected to the first port of the fifth EtherCAT slave controller. The second port of the fourth EtherCAT slave controller is electrically connected to the fourth PHY chip. The fourth PHY chip is electrically connected to the fourth RJ45 network interface. The fourth RJ45 network interface outputs the fourth EtherCAT bus channel;

[0063] The third port of the fifth EtherCAT slave controller is electrically connected to the first port of the sixth EtherCAT slave controller. The second port of the fifth EtherCAT slave controller is electrically connected to the fifth PHY chip. The fifth PHY chip is electrically connected to the fifth RJ45 network interface. The fifth RJ45 network interface outputs the fifth EtherCAT bus channel;

[0064] The third port of the sixth EtherCAT slave controller is electrically connected to the first port of the seventh EtherCAT slave controller. The second port of the sixth EtherCAT slave controller is electrically connected to the sixth PHY chip. The sixth PHY chip is electrically connected to the sixth RJ45 network interface. The sixth RJ45 network interface outputs the sixth EtherCAT bus channel;

[0065] The third port of the seventh EtherCAT slave controller is electrically connected to the first port of the eighth EtherCAT slave controller. The second port of the seventh EtherCAT slave controller is electrically connected to the seventh PHY chip. The seventh PHY chip is electrically connected to the first RJ45 network interface. The seventh RJ45 network interface outputs the seventh EtherCAT bus channel;

[0066] The third port of the 8th EtherCAT slave controller is electrically connected to the first port of the 9th EtherCAT slave controller. The second port of the 8th EtherCAT slave controller is electrically connected to the 8th PHY chip. The 8th PHY chip is electrically connected to the first fiber optic interface, and the first fiber optic interface outputs the 8th EtherCAT bus channel;

[0067] The third port of the 9th EtherCAT slave controller is electrically connected to the first port of the 10th EtherCAT slave controller. The second port of the 9th EtherCAT slave controller is electrically connected to the 9th PHY chip. The 9th PHY chip is electrically connected to the second fiber optic interface, and the second fiber optic interface outputs the 9th EtherCAT bus channel;

[0068] The third port of the 10th EtherCAT slave controller is electrically connected to the first port of the 11th EtherCAT slave controller. The second port of the 10th EtherCAT slave controller is electrically connected to the 10th PHY chip. The 10th PHY chip is electrically connected to the first EtherCAT-P interface, and the first EtherCAT-P interface outputs the 10th EtherCAT bus channel;

[0069] The third port of the 11th EtherCAT slave controller is electrically connected to the first port of the 12th EtherCAT slave controller. The second port of the 11th EtherCAT slave controller is electrically connected to the 11th PHY chip. The 11th PHY chip is electrically connected to the second EtherCAT-P interface, and the second EtherCAT-P interface outputs the 11th EtherCAT bus channel;

[0070] The third port of the 12th EtherCAT slave controller is electrically connected to the first port of the 13th EtherCAT slave controller. The second port of the 12th EtherCAT slave controller is electrically connected to the 12th PHY chip. The 12th PHY chip is electrically connected to the first POE interface, and the first POE interface outputs the 12th EtherCAT bus channel;

[0071] The second port of the 13th EtherCAT slave controller is electrically connected to the 13th PHY chip. The 13th PHY chip is electrically connected to the second POE interface, and the second POE interface outputs the 13th EtherCAT bus channel;

[0072] The third port of the 13th EtherCAT slave controller is electrically connected to the 8th RJ45 network interface, and the 8th RJ45 network interface outputs the 14th EtherCAT bus channel.

[0073] Thus, 14 EtherCAT bus channels can be realized, meeting the transfer of different hardware physical layer interfaces, enabling flexible connection of devices under different topologies, and achieving real-time exchange of network data.

[0074] In one embodiment, as Figure 2 shown, the EtherCAT bus network switch 10 further includes a plurality of isolation transformers, and each isolation transformer is electrically connected to a PHY module or an EtherCAT data converter.

[0075] Specifically, the isolation transformer is electrically connected to the EtherCAT data converter. After connection, the isolation transformer is also electrically connected to the RJ45 network interface, that is: the isolation transformer is arranged between the EtherCAT data converter and the RJ45 network interface, and the isolation transformer is electrically connected to the RJ45 network interface and the EtherCAT data converter respectively.

[0076] The isolation transformer is electrically connected to the PHY module. After connection, the isolation transformer is also electrically connected to the POE interface, the RJ45 network interface or the EtherCAT-P interface respectively, that is:

[0077] The isolation transformer is arranged between the PHY module and the POE interface, and the isolation transformer is electrically connected to the POE interface and the PHY module respectively.

[0078] The isolation transformer is arranged between the PHY module and the RJ45 network interface, and the isolation transformer is electrically connected to the RJ45 network interface and the PHY module respectively.

[0079] The isolation transformer is arranged between the PHY module and the EtherCAT-P interface, and the isolation transformer is electrically connected to the EtherCAT-P interface and the PHY module respectively.

[0080] In this embodiment, by arranging isolation transformers between the PHY module, the EtherCAT data converter and each interface, the electrical insulation between the PHY module, the EtherCAT data converter and each interface can be achieved, and the loop isolation between the PHY module, the EtherCAT data converter and each interface can also be achieved; in addition, the characteristic that the iron core in the isolation transformer has large high-frequency loss can be utilized to suppress high-frequency clutter from entering the control loop.

[0081] In one embodiment, as Figure 2As shown, the EtherCAT bus network switch further includes a number of operating activation digital input / output interfaces (Link / Active IO). The EtherCAT data converter or PHY module outputs signals through the operating activation digital input / output interfaces to connect to external indicators, indicating the real-time operating status of the EtherCAT data converter or PHY module.

[0082] For example, as Figure 2 shown, the EtherCAT bus network switch further includes 14 operating activation digital input / output interfaces (Link / Active IO_1 - Link / Active IO_14). The EtherCAT data converter is an EtherCAT slave controller (ESC), and the PHY module is a PHY chip, where:

[0083] The first operating activation digital input / output interface (Link / Active IO_1) is electrically connected to the first PHY chip, indicating the real-time operating status of the first PHY chip.

[0084] The second operating activation digital input / output interface (Link / Active IO_2) is electrically connected to the second PHY chip, indicating the real-time operating status of the second PHY chip.

[0085] The third operating activation digital input / output interface (Link / Active IO_3) is electrically connected to the third PHY chip, indicating the real-time operating status of the third PHY chip.

[0086] The fourth operating activation digital input / output interface (Link / Active IO_4) is electrically connected to the fourth PHY chip, indicating the real-time operating status of the fourth PHY chip.

[0087] The fifth operating activation digital input / output interface (Link / Active IO_5) is electrically connected to the fifth PHY chip, indicating the real-time operating status of the fifth PHY chip.

[0088] The sixth operating activation digital input / output interface (Link / Active IO_6) is electrically connected to the sixth PHY chip, indicating the real-time operating status of the sixth PHY chip.

[0089] The seventh operating activation digital input / output interface (Link / Active IO_7) is electrically connected to the seventh PHY chip, indicating the real-time operating status of the seventh PHY chip.

[0090] The 8th running activation digital input / output interface (Link / Active IO_8) is electrically connected to the 8th PHY chip, indicating the real-time operating status of the 8th PHY chip.

[0091] The 9th running activation digital input / output interface (Link / Active IO_9) is electrically connected to the 9th PHY chip, indicating the real-time operating status of the 9th PHY chip.

[0092] The 10th running activation digital input / output interface (Link / Active IO_10) is electrically connected to the 10th PHY chip, indicating the real-time operating status of the 10th PHY chip.

[0093] The 11th running activation digital input / output interface (Link / Active IO_11) is electrically connected to the 11th PHY chip, indicating the real-time operating status of the 11th PHY chip.

[0094] The 12th running activation digital input / output interface (Link / Active IO_12) is electrically connected to the 12th PHY chip, indicating the real-time operating status of the 12th PHY chip.

[0095] The 13th running activation digital input / output interface (Link / Active IO_13) is electrically connected to the 13th PHY chip, indicating the real-time operating status of the 13th PHY chip.

[0096] The 14th running activation digital input / output interface (Link / Active IO_14) is electrically connected to the 13th EtherCAT slave controller, indicating the real-time operating status of the 13th EtherCAT slave controller.

[0097] In this embodiment, by setting the running activation digital input / output interface in the EtherCAT bus network switch, the EtherCAT slave controller / PHY module in the EtherCAT bus network switch can output signals through the running activation digital input / output interface to connect to an external indicator light, so as to indicate the real-time operating status of each EtherCAT slave controller or PHY module in the EtherCAT bus network switch, thereby enabling real-time monitoring of the real-time operating status of each EtherCAT slave controller or PHY module in the EtherCAT bus network switch.

[0098] In one embodiment, the EtherCAT bus network switch further includes a power supply circuit, which is electrically connected to the EtherCAT data converter, the PHY module, the POE interface, and / or the EtherCAT-P interface respectively, and supplies power to the EtherCAT data converter, the PHY module, the POE interface, and / or the EtherCAT-P interface respectively.

[0099] Specifically, the power supply circuit provides a 24V power supply. The power supply circuit supplies power to the EtherCAT-P interface through a power modulation and demodulation circuit, and supplies power to the POE interface through a power isolation circuit.

[0100] The present utility model provides an EtherCAT bus network switch 10, which can realize the interface conversion of multiple EtherCAT buses and the real-time exchange of network data. Through the RJ45 network interface, it can be connected to the laser control system and the cutting laser. Through the POE interface, it can be connected to the cutting head so that the laser control system can control the cutting head. Through EtherCAT-P, it can be connected to the welding head so that the laser control system can control the welding head. Through the fiber optic interface, it can be connected to the welding laser so that the laser control system can control the welding laser. Through the extended RJ45 network interface, it can be connected to the light shutter and the laser process control card so that the laser control system can control the light shutter and the laser process control card. As long as the interfaces of each EtherCAT bus laser device are adapted, they can be freely configured, and the topological structure is flexible and variable. For the convenience of configuration at the user side site, without other terminals or Ethernet switches, the freely dynamic scanning device for plug-and-play can be controlled. In addition, for EtherCAT bus laser devices with requirements for vibration sealing and dust prevention, the EtherCAT-P interface with M8 terminals or the POE interface with M12 terminals can be adopted. For conventional EtherCAT bus laser devices, the RJ45 network interface can be adopted. For EtherCAT bus laser devices with requirements for communication distance and relatively harsh electromagnetic environments, the fiber optic interface can be adopted. Thus, the conversion of the interface physical layer circuit and the interface is realized through the EtherCAT bus network switch.

[0101] Based on the same concept, as Figure 3 shown, the present utility model provides a laser processing system 100, including: a laser control system 20, an EtherCAT bus network switch 10, and an EtherCAT bus laser device 30. The EtherCAT bus network switch 10 is respectively connected to the laser control system 20 and the EtherCAT bus laser device 30.

[0102] In this embodiment, the EtherCAT bus network switch 10 is the same as the EtherCAT bus network switch 10 described in any of the above embodiments. For the specific structure and functions, reference can be made to the EtherCAT bus network switch 10 described in any of the above embodiments, which will not be elaborated herein.

[0103] The laser control system 20 realizes redundant communication control of the EtherCAT bus laser device 30 through the EtherCAT bus network switch 10. Through the control of the laser control system 20, a single-point fault at any point in the EtherCAT bus laser device 30 will not affect the normal communication of the entire laser processing system 100, improving the reliability and safety of the laser processing system 100, thereby realizing the control of the factory site.

[0104] Among them, the EtherCAT bus laser device 30 includes: a cutting laser, a cutting head, a welding head, a welding laser, a light shutter, and / or a laser process control card.

[0105] The EtherCAT bus network switch 10 includes a POE interface, an RJ45 network interface, an optical fiber interface, and / or an EtherCAT-P interface. The EtherCAT bus network switch 10 is respectively connected to the laser control system 20 and the EtherCAT bus laser device 30, including:

[0106] The laser control system 20 is connected to the EtherCAT bus network switch 10 through the RJ45 network interface of the EtherCAT bus network switch 10;

[0107] The laser control system 20 controls the cutting head through the POE interface of the EtherCAT bus network switch 10;

[0108] The laser control system 20 controls the welding head through the EtherCAT-P interface of the EtherCAT bus network switch 10;

[0109] The laser control system 20 controls the welding laser through the optical fiber interface of the EtherCAT bus network switch 10;

[0110] The laser control system 20 controls the light shutter through the RJ45 network interface of the EtherCAT bus network switch 10;

[0111] The laser control system 20 controls the laser process control card through the RJ45 network interface of the EtherCAT bus network switch 10;

[0112] The laser control system 20 controls the cutting laser through the RJ45 network interface of the EtherCAT bus network switch 10.

[0113] Further, the laser processing system 100 further includes a digital cloud intelligent factory system 40, and the digital cloud intelligent factory system 40 is communicatively connected to the laser control system.

[0114] The digital cloud intelligent factory system 40 communicates with and reads the control of the laser control system 20, and through digital visualization technology, it conducts on-line detection and overall management of the EtherCAT bus laser devices 30 in the factory, makes reasonable deployments, gives early intelligent warning for maintenance, visualizes production efficiency and progress; and conducts on-line remote health diagnosis, firmware program upgrade, optimizes quality control management, improves production efficiency, guides key product test items, and forms a full closed-loop of the product life cycle.

[0115] In this embodiment, by providing a laser processing system including a laser control system, an EtherCAT bus network switch, and EtherCAT bus laser devices, the laser control system is connected to the EtherCAT bus network switch through the RJ45 network interface of the EtherCAT bus network switch. After the laser control system is connected to the EtherCAT bus network switch, it controls the cutting head in the EtherCAT bus laser device through the POE interface of the EtherCAT bus network switch, controls the cutting laser in the EtherCAT bus laser device through the RJ45 network interface, controls the welding laser in the EtherCAT bus laser device through the fiber optic interface, and controls the light shutter and the laser process control board in the EtherCAT bus laser device through the RJ45 network interface. Thus, each bus laser device in the EtherCAT bus laser device can be freely configured as long as the interfaces are adapted, making the topology structure of the laser processing system flexible and variable. For the convenience of configuration at the user side site, there is no need to use other terminals or Ethernet switches, and the freely dynamic scanning devices can be controlled with plug-and-play.

[0116] It should be noted that the above laser processing system embodiment and the EtherCAT bus network switch embodiment belong to the same concept. The specific implementation process is detailed in the EtherCAT bus network switch embodiment, and the technical features in the EtherCAT bus network switch embodiment are correspondingly applicable in the above laser processing system embodiment, which will not be elaborated here.

[0117] Based on the same concept, as Figure 4 shown, the present utility model provides a data diagnosis system 200, including: an EtherCAT bus network switch 10 and a diagnosis device 50, and the EtherCAT bus network switch 10 is electrically connected to the diagnosis device 50.

[0118] The EtherCAT bus network switch 10 is used to connect the system 60 to be diagnosed for data frames to a diagnostic device;

[0119] The diagnostic device 50 is connected to the system 60 to be diagnosed for data frames through the EtherCAT bus network switch 10, reads the EtherCAT bus data frames in the system 60 to be diagnosed for data frames, and diagnoses the real-time performance of the data sent by the system 60 to be diagnosed for data frames according to the EtherCAT bus data frames.

[0120] In this embodiment, the EtherCAT bus network switch 10 is the same as the EtherCAT bus network switch 10 described in any of the above embodiments. For the specific structure and functions, reference can be made to the EtherCAT bus network switch 10 described in any of the above embodiments, and details will not be elaborated here.

[0121] The system 60 to be diagnosed for data frames includes but is not limited to an EtherCAT bus master system, an EtherCAT bus servo driver, an EtherCAT bus stepper driver, an EtherCAT bus coupler remote IO module, an EtherCAT bus gateway, an EtherCAT bus sensor, an EtherCAT bus process control card, an EtherCAT bus laser, and / or an EtherCAT bus light shutter.

[0122] The diagnostic device 50 is a device with Ethernet function, which can be a personal computer, a laptop, a tablet computer, or a server, etc. The diagnostic device 50 includes a data packet capture and analysis interface. The data packet capture and analysis interface is connected to the system 60 to be diagnosed for data frames through the EtherCAT bus network switch 10, reads the EtherCAT bus data frames in the system 60 to be diagnosed for data frames, and diagnoses the real-time performance of the data sent by the system 60 to be diagnosed for data frames according to the EtherCAT bus data frames.

[0123] The EtherCAT bus machine tool laser cutting system, the EtherCAT bus robot laser welding system, and the EtherCAT bus laser automation pipeline field device system are complex, with uncertain equipment positions and diverse topological structures. Once an abnormality occurs in the field device bus, the laser control system can only read the communication status and device fault status of the device, but cannot read the detailed frame structure of the EtherCAT bus data frames.

[0124] In the present utility model, an EtherCAT bus network switch can connect the system to be diagnosed with data frames to the data capture and analysis interface of the diagnostic device 50. The EtherCAT Ethernet packets in the system 60 to be diagnosed with data frames are read by the data capture and analysis interface of the diagnostic device 50, and the EtherCAT Ethernet packets are further analyzed to check for CRC errors in the EtherCAT Ethernet packets, obtaining the EtherCAT bus data frames. The data of the input and output EtherCAT bus data frames are compared, the jitter delay of the network frames and the drift of the communication time are measured, and the real-time performance of the data transmission at the EtherCAT bus master system end is analyzed, and the response performance of the slave devices is measured.

[0125] The data capture and analysis interface of the diagnostic device 50 can use Wireshark software to display an accurate timestamp. The Ethernet data can be monitored and backed up locally for packet capture recording, facilitating the reproduction and solution of problems. The data capture and analysis interface of the diagnostic device 50 can, through the EtherCAT bus network switch, expand various connection methods to connect systems to be diagnosed with data frames including the EtherCAT bus master system, EtherCAT bus servo drivers, EtherCAT bus stepper drivers, EtherCAT bus coupler remote IO modules, EtherCAT bus gateways, EtherCAT bus sensors, EtherCAT bus process control cards, EtherCAT bus lasers, and / or EtherCAT bus shutters. Thus, through the EtherCAT bus network switch, the entire laser processing system can use the underlying communication packet capture technology to make diagnosis more convenient, with stronger scalability, improving the maintainability of the system and reducing the troubleshooting time.

[0126] It should be noted that the above data diagnosis system embodiment and the EtherCAT bus network switch embodiment belong to the same concept. The specific implementation process is detailed in the EtherCAT bus network switch embodiment, and the technical features in the EtherCAT bus network switch embodiment are correspondingly applicable in the above data diagnosis system embodiment, which will not be elaborated here.

[0127] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0128] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An EtherCAT bus network switch, characterized in that: include: A plurality of EtherCAT data converters, at least one POE interface, at least one RJ45 network interface, at least one optical fiber interface and / or at least one EtherCAT-P interface electrically connected in sequence; each of the POE interface, each of the RJ45 network interface, each of the optical fiber interface and / or each of the EtherCAT-P interface is electrically connected to one of the EtherCAT data converters, and the EtherCAT data converters are electrically connected to the POE interface, the RJ45 network interface, the optical fiber interface and / or the EtherCAT-P interface respectively to realize real-time exchange of network data with the EtherCAT bus laser device.

2. The EtherCAT bus network switch according to claim 1, characterized in that: The EtherCAT data converter includes a first port, a second port and a third port; The plurality of EtherCAT data converters are electrically connected in sequence, including: the third port of the preceding EtherCAT data converter is electrically connected to the first port of the succeeding EtherCAT data converter.

3. The EtherCAT bus network switch according to claim 2, characterized in that: The EtherCAT bus network switch also includes a plurality of PHY modules, each of which is electrically connected to the second port of each of the EtherCAT data converters. After the PHY module is electrically connected to the second port of the EtherCAT data converter, the PHY module is also electrically connected to the POE interface, the RJ45 network interface, the optical fiber interface or the EtherCAT-P interface, respectively.

4. The EtherCAT bus network switch according to claim 3, characterized in that: The EtherCAT bus network switch also includes a plurality of isolation transformers, which are electrically connected to the PHY module. After the isolation transformer is electrically connected to the PHY module, the isolation transformer is also electrically connected to the POE interface, the RJ45 network interface or the EtherCAT-P interface respectively.

5. The EtherCAT bus network switch according to claim 4, characterized in that: The isolation transformer is electrically connected to the EtherCAT data converter. After the isolation transformer is electrically connected to the EtherCAT data converter, the isolation transformer is also electrically connected to the RJ45 network interface.

6. The EtherCAT bus network switch according to claim 3, characterized in that: The EtherCAT bus network switch also includes a plurality of operation-activated digital input and output interfaces, and the EtherCAT data converter or the PHY module outputs signals through the operation-activated digital input and output interfaces to connect to external indicator lights, indicating the real-time operation status of the EtherCAT data converter or the PHY module.

7. The EtherCAT bus network switch according to claim 3, characterized in that: The EtherCAT bus network switch further comprises a power supply circuit, which supplies power to the EtherCAT data converter, the PHY module, the POE interface and / or the EtherCAT-P interface respectively.

8. A laser processing system, characterized in that: include: A laser control system, an EtherCAT bus network switch and an EtherCAT bus laser device as described in any one of claims 1 to 7, wherein the EtherCAT bus network switch is connected to the laser control system and the EtherCAT bus laser device respectively, and the laser control system realizes redundant communication control of the EtherCAT bus laser device through the EtherCAT bus network switch.

9. The laser processing system according to claim 8, characterized in that: The laser processing system also includes a digital cloud-based smart factory system, which is communicatively connected to the laser control system. The digital cloud-based smart factory system communicates, reads and controls the laser control system, and performs online detection and overall management of the EtherCAT bus laser equipment through digital visualization technology.

10. A data diagnosis system, characterized in that: include: A diagnostic device and an EtherCAT bus network switch according to any one of claims 1 to 7, wherein the EtherCAT bus network switch is electrically connected to the diagnostic device; The EtherCAT bus network switch is used to connect the system to be diagnosed with data frames to the diagnostic device; The diagnostic device is connected to the system to be diagnosed via the EtherCAT bus network switch, reads the EtherCAT bus data frames in the system to be diagnosed, and diagnoses the real-time performance of sending data by the system to be diagnosed based on the EtherCAT bus data frames.

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