CN218387535U - Extended industrial gateway module and system based on EtherCAT - Google Patents

Abstract

The utility model relates to an extended industrial gateway module based on EtherCAT, including host system, power module, clock module, port interface module and PHY module, host system links to each other with power module, clock module, port interface module and PHY module respectively, and adopts AX58100 controller to realize; the power supply module is used for supplying power to the main control module; the clock module is used for providing a clock source for the main control module; the Port interface module is used for connecting a network interface or other extended industrial gateway modules; and the PHY module is connected with the main control module through an MII interface and is used for connecting a network interface. The invention can reduce the design redundancy in star networking.

Description

Extended industrial gateway module and system based on EtherCAT

Technical Field

The utility model relates to an industrial automation technical field especially relates to an extension industrial gateway module and system based on etherCAT.

Background

EtherCAT equipment has been widely used in various fields, the conventional EtherCAT equipment bus mode adopts a hand-in-hand mode for networking, and in some severe environments, a star connection mode can also be adopted, but an external special EtherCAT industrial gateway module is needed, and the Ethernet CAT switch gateway in the market adopts a foreign chip scheme, so that the problems of complicated expansion circuit redundancy, chip shortage, high price and the like exist.

Disclosure of Invention

The utility model aims to solve the technical problem that an extension industrial gateway module and system based on etherCAT is provided, design redundancy when can reducing star type network deployment.

The utility model provides a technical scheme that its technical problem adopted is: the extended industrial gateway module based on the EtherCAT comprises a main control module, a power module, a clock module, a Port interface module and a PHY module, wherein the main control module is respectively connected with the power module, the clock module, the Port interface module and the PHY module and is realized by adopting an AX58100 controller; the power supply module is used for supplying power to the main control module; the clock module is used for providing a clock source for the main control module; the Port interface module is used for connecting a network interface or other extended industrial gateway modules; and the PHY module is connected with the main control module through an MII interface and is used for connecting a network interface.

The power module is including the protection circuit, power conversion circuit and the LDO circuit that connect gradually, the protection circuit is used for guaranteeing input voltage's amplitude, power conversion circuit is used for converting input voltage into first operating voltage, the LDO circuit is used for converting first operating voltage into second operating voltage, first operating voltage is used for being the peripheral device power supply of AX58100 controller, second operating voltage is used for being the kernel power supply of AX58100 controller.

The clock module adopts a Hongxing HXO-3 series active crystal oscillator.

The PHY module adopts an IP101GR chip.

The main control module is further connected with a reset module, and the reset module is used for providing a reset signal for the main control module when the power supply module is abnormal.

The reset module monitors and resets the chip using the VDA2510 NTA.

The utility model provides a technical scheme that its technical problem adopted is: the extended industrial gateway module system based on the EtherCAT comprises n cascaded extended industrial gateway modules based on the EtherCAT, wherein n is larger than or equal to 2, each extended industrial gateway module comprises at least 2 Port interface modules, one Port interface module of a first extended industrial gateway module is connected with a network interface, the other Port interface module is connected with one Port interface module of a next-stage extended industrial gateway module, one Port interface module of a last extended industrial gateway module is connected with the network interface, the other Port interface module is connected with one Port interface module of a previous-stage extended industrial gateway module, one Port interface module of the rest extended industrial gateway modules is connected with one Port interface module of the previous-stage extended industrial gateway module, and the other Port interface module is connected with one Port interface module of the next-stage extended industrial gateway module.

Advantageous effects

Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses a AX58100 controller is as the host system of industrial gateway module, it is from taking 2 way PHYs, and can pass through 1 way PHY of MII interface extension, 3 way 100M ethernet ports of maximum support, when the component system, can cascade with the Port interface of the module of the next kind through the Port interface, realize multichannel 100M ethernet Port, expand into multichannel etherCAT industrial gateway, thereby can satisfy industry field bus multi-node branch star type connection demand, this system simple structure, reduce the design redundancy of traditional mode when star type network deployment, satisfy the demand to the localization module.

Drawings

Fig. 1 is a block diagram of an extended industrial gateway module based on EtherCAT according to a first embodiment of the present invention;

fig. 2 is a circuit diagram of a power module according to a first embodiment of the present invention;

fig. 3 is a block diagram of an extended industrial gateway module system based on EtherCAT according to a second embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The utility model discloses a first embodiment relates to an extension industrial gateway module based on etherCAT, as shown in FIG. 1, including host system, power module, clock module, the module that resets, port interface module and PHY module. The number of the Port interface modules is two, namely a Port0 interface module and a Port1 interface module.

The main control module is used as the core of the whole extended industrial gateway module based on the EtherCAT and is respectively connected with the power supply module, the clock module, the reset module, the Port interface module and the PHY module. In the embodiment, the main control module adopts an EtherCAT slave station controller AX58100 of an subsignal electronic 2/3 port, which integrates two fast Ethernet PHYs supporting 100Mbps full duplex operation and HP Auto-MDIX Function, AX58100 has two memory spaces corresponding to an ESC memory and a Function buffer respectively, an internal bridge can automatically synchronize the contents of the ESC memory and the Function buffer according to a set synchronization condition, and AX58100 reacts ESC and an application program interrupt event in an interrupt state buffer; support 8 field bus memory management units (FMMUs), 8 Sync managers, cross-line Auto-detect and Handover (HP Auto-MDIX), are compatible with the IEEE 802.3 and 802.3u 100BASE-TX/100BASE-FX standards, and support PHY Loop mode. AX58100 has 2-way PHY, and can expand 1-way PHY through MII interface, and support 3-way 100M Ethernet port at most.

As shown in fig. 3, the power module includes a protection circuit, a power conversion circuit and an LDO line connected in sequence, the protection circuit is used to ensure the amplitude of the input voltage, and includes a fuse F1 and a diode D1 connected in series, which can control the input voltage at 24V in this embodiment. The power supply conversion circuit is used for converting an input voltage into a first working voltage, a domestic DC-DC chip XL1507 is adopted in the power supply conversion circuit in the embodiment, XL1507 is a high-efficiency PWM voltage reduction type DC-DC converter, the switching frequency is fixed at 150KHz, the capability of providing up to 3A output current can be provided, and XL1507 has low ripple, excellent linear regulation rate and load regulation rate. In this embodiment, the 24V power supply can be converted into a 3.3V power supply by XL 1507. The LDO circuit is used for converting first operating voltage into second operating voltage, including stabiliser D4, stabiliser D4's negative pole is direct to link to each other with XL 1507's output, and anodal ground connection, stabiliser D4's negative pole still links to each other with XL 1507's feedback end through a feedback resistance R48, can convert 3.3V power into 1.2V power through stabiliser D4. In this embodiment, the 3.3V power supply supplies power to the peripheral device of AX58100, and the 1.2V power supply supplies power to the core of AX 58100.

The clock module in the embodiment adopts a Hongxing HXO-3 series active crystal oscillator, so that the high cost performance design is realized, the frequency of the crystal oscillator is 25MHz, the power supply voltage is 3.3V, an integrated loop of a crystal unit and an oscillator is arranged inside the clock module, the frequency tolerance is +/-100X 10-6 at most, and the clock module has high quality and high stability.

The reset module of the embodiment adopts a VDA2510NTA monitoring and resetting chip, and is a CMOS voltage detector with low voltage, low power consumption and high detection precision of 1%. And monitoring the power supply state of the 3.3V power supply on line, and immediately resetting the system when the power supply is abnormal, so as to protect the gateway module in real time.

The Port0 interface module and the Port1 interface module adopt a hundred-million RJ45 Port of an integrated 1:1 network transformer, the isolation voltage is 1500Vrms, the electromagnetic shielding function is integrated, and the communication quality of a system is ensured; the PHY module adopts a Jiuyang electronic IP101GR chip, 3.3V power supply voltage, a single port supports 10/100M transmission rate, and data interaction is realized through an MII interface and an AX58100 controller.

It is not difficult to find that each module in the embodiment can be completed by using a domestic chip, so that the cost is reduced, the requirement on a domestic module is met, and the design of a domestic Ethercat extended industrial gateway module is realized.

A second embodiment of the present invention relates to an extended industrial gateway module system based on EtherCAT, as shown in fig. 3, including n cascaded extended industrial gateway modules based on EtherCAT of the first embodiment, where n =3, each of the extended industrial gateway modules includes at least 2 Port interface modules, where a Port0 interface module of a first extended industrial gateway module is connected to a RJ45 network interface, a Port1 interface module is connected to a Port2 interface module of a second extended industrial gateway module, a Port3 interface module of the second extended industrial gateway module is connected to a Port4 interface module of a third extended industrial gateway module, and a Port5 interface module of the third extended industrial gateway module is connected to each RJ45 network interface; the PHY module of each extended industrial gateway module may be connected to a network interface RJ45, and these network interfaces RJ45 may be connected to EtherCAT equipment, so that the EtherCAT equipment forms a star networking connection. If more EtherCAT equipment needs to be accessed, only more expansion industrial gateway modules need to be added in the middle, only one Port interface module of the expansion industrial gateway module needs to be connected with one Port interface module of the expansion industrial gateway module at the previous stage during addition, the other Port interface module is connected with one Port interface module of the expansion industrial gateway module at the next stage, the whole mode is very simple, no complex redundancy design exists, and the industrial networking is facilitated.

Claims (7)

1. An extended industrial gateway module based on EtherCAT is characterized by comprising a main control module, a power supply module, a clock module, a Port interface module and a PHY module, wherein the main control module is respectively connected with the power supply module, the clock module, the Port interface module and the PHY module and is realized by adopting an AX58100 controller; the power supply module is used for supplying power to the main control module; the clock module is used for providing a clock source for the main control module; the Port interface module is used for connecting a network interface or other extended industrial gateway modules; and the PHY module is connected with the main control module through an MII interface and is used for connecting a network interface.

2. The EtherCAT-based extended industrial gateway module according to claim 1, wherein the power module comprises a protection circuit, a power conversion circuit and an LDO line, which are connected in sequence, the protection circuit is used for ensuring the amplitude of the input voltage, the power conversion circuit is used for converting the input voltage into a first working voltage, the LDO line is used for converting the first working voltage into a second working voltage, the first working voltage is used for supplying power to peripheral devices of the AX58100 controller, and the second working voltage is used for supplying power to a core of the AX58100 controller.

3. The extended industrial gateway module based on EtherCAT of claim 1, characterized in that the clock module employs a hong xing HXO-3 series active crystal oscillator.

4. The EtherCAT-based extended industrial gateway module according to claim 1, wherein the PHY module employs an IP101GR chip.

5. The extended industrial gateway module based on EtherCAT of claim 1, characterized in that the main control module is further connected with a reset module, and the reset module is configured to provide a reset signal to the main control module when the power module is abnormal.

6. The extended industrial gateway module based on EtherCAT of claim 5, wherein the reset module employs a VDA2510NTA to monitor and reset the chip.

7. An extended industrial gateway module system based on EtherCAT, characterized by comprising n cascaded extended industrial gateway modules based on EtherCAT as claimed in any one of claims 1 to 6, wherein n is greater than or equal to 2, each extended industrial gateway module comprises at least 2 Port interface modules, wherein one Port interface module of the first extended industrial gateway module is connected to a network interface, another Port interface module is connected to a Port interface module of the next-stage extended industrial gateway module, one Port interface module of the last extended industrial gateway module is connected to a network interface, another Port interface module is connected to a Port interface module of the previous-stage extended industrial gateway module, one Port interface module of the remaining extended industrial gateway modules is connected to a Port interface module of the previous-stage extended industrial gateway module, and another Port interface module is connected to a Port interface module of the next-stage extended industrial gateway module.

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