The method to solve the limitation of packet Ethernet encapsulation in u-con active mode

Abstract

The invention relates to a method for solving a data packet Ethernet packaging restriction under a U-CON active mode. The method employs a mode of configuring an Ethernet end of a serial port equipment networking server to be a vertical COM port and linking the virtual COM port under an active mode of a U-CON OPC Server; the method is specifically divided into two portions, i.e., serial port equipment networking server module configuration and active-mode bottom-layer driving configuration; the serial port equipment networking server module configuration comprises physical hardware connection, physical serial port configuration, physical net port configuration, configuration of mapping a net port to a serial port, and configuration change application; and the active-mode bottom-layer driving configuration comprises physical hardware connection, U-CON channel configuration, U-CON equipment configuration, U-CON driving configuration, and debugging and application. The method has the following advantages: the hardware configuration is simple, and the cost performance is high; and software driving development is convenient and fast, and transparent data access between a host computer and an active non-standard serial port device is realized.

Description

technical field [0001] The invention relates to a method for solving the problem that the serial port data cannot be collected in the OPC Server through the Ethernet communication mode in the active mode of U-CON, which is developed by the underlying communication driver of non-standard equipment in the foundry industry, and specifically relates to a U-CON A solution to the limitation of packet Ethernet encapsulation in CON active mode. It belongs to the field of communication. Background technique [0002] At present, U-CON OPC Server is often used in the development of the underlying driver of industrial non-standard equipment. It is only necessary to specify the communication protocol corresponding to the target device and the data that OPC needs to have access rights. With this tool, OPC standard drivers can be quickly developed to enable process control data to be exchanged smoothly between OPC compatible applications and any device that supports serial ports or Ethern...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art, the present invention provides a method for solving the limitation of data packet Ethernet encapsulation under U-CON active mode. In the active mode of U-CON OPC Server, the virtual serial port is used as the driver interface, and the underlying driver of the active non-standard equipment is compiled, which solves the problem that the communication data packets of such equipment cannot be transmitted in the U-CON OPC Server after being encapsulated by Ethernet. -Con OPC Server under the active mode of data collection limitations, the hardware configuration of the method of the present invention is simple, cost-effective, and software driver development is convenient and fast

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