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Method and device for automatically starting EtherCat redundancy function

An automatic startup and redundant technology, applied in the computer field, can solve problems such as manual selection, save time and increase communication security.

Pending Publication Date: 2021-04-20
深圳市合信自动化技术有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method and device for automatically starting the EtherCat redundant function, and solve the technical problem that the existing method needs to manually check in the hardware configuration when the redundant function is enabled

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  • Method and device for automatically starting EtherCat redundancy function
  • Method and device for automatically starting EtherCat redundancy function

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the medium and large-scale programmable logic controller (CPU) provided by the present invention has 2 EtherCAT ports, an OUT port (output interface), and an IN port (input interface), wherein, the OUT port is the main network card, and the IN port The port is the secondary NIC. Both Ethercat_OUT and Ethercat_IN are plugged into the network cable and form a loop with the slave station (such as H1A servo drive). The slave station of the logic controller includes a plurality of sequentially connected servo drivers, wherein the input interface of the servo driver at one end is connected to the output interface of the logic controller; the output interface of the servo driver at the other end is connected to the logic controller inp...

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Abstract

The invention provides a method and device for automatically starting an EtherCat redundancy function, and the method comprises the steps: S1, enabling a logic controller to obtain the interface state information and slave station state information of the logic controller, judging whether an interface of the logic controller and a slave station of the logic controller meet the conditions for starting the EtherCat redundancy function or not according to a preset state judgment rule, generating a judgment result, wherein the judgment result comprises whether the starting condition is met or not, and interfaces of the logic controller at least comprise an input interface and an output interface; s2, determining whether a starting instruction is generated or not according to the judgment result, and starting an EtherCat redundant function in response to the starting instruction if the starting instruction is generated; and if the starting instruction is not generated, keeping the closing state of the EtherCat redundant function. According to the invention, hardware configuration does not need to be downloaded again; communication guarantee can be increased, whether a redundancy function is started or not is determined according to the demand condition, and the time can be effectively saved.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a method and a device for automatically starting an EtherCat redundancy function. Background technique [0002] At present, medium and large programmable logic controllers have two EtherCat (EtherControl Automation Technology, Ethernet control automation technology) ports, one OUT port and one IN port. Among them, the OUT port is the main network card, and the IN port is the auxiliary network card (only if the Redundant function, this port will be enabled) In some applications, in order to add a layer of security to the communication, it is necessary to enable the redundant function. When enabling the redundant function, you need to manually check it in the hardware configuration, and then re-download the hardware group State, not very convenient. [0003] Although redundancy can increase communication security, the time it takes to send data will increase after redundancy is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/12G06F13/40
Inventor 张翠芳周露
Owner 深圳市合信自动化技术有限公司
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