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A method and system for realizing profibus-dp master station protocol

A technology for implementing systems and implementation methods, applied in transmission systems, digital transmission systems, bus networks, etc., can solve problems such as insufficient performance, and achieve the effects of improving protocol processing performance, improving system closed-loop control performance, and improving closed-loop control performance.

Active Publication Date: 2021-12-07
BEIJING HOLLYSYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution can reach the highest transmission rate supported by the Profibus-DP communication protocol, but its performance is not good enough in the face of today's closed-loop control performance requirements for industrial control systems

Method used

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  • A method and system for realizing profibus-dp master station protocol
  • A method and system for realizing profibus-dp master station protocol
  • A method and system for realizing profibus-dp master station protocol

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0056] Such as figure 1 Shown, according to the implementation system of a kind of Profibus-DP master station agreement of the embodiment of the present invention, comprise controller CPU 101, FPGA soft core 102 and FPGA hard core 103, wherein:

[0057] The FPGA soft core 102 is connected between the controller CPU 101 and the FPGA hard core 103, for realizing the user layer communication protocol of Profibus-DP;

[0058] Described FPGA hard core 103 is provided with the shared data buffer that is connected with described FPGA soft core 102, and is connected with each slave ...

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Abstract

The application discloses a method and system for realizing the Profibus-DP master station protocol. The realization system includes a controller CPU, an FPGA soft core and an FPGA hard core, wherein: the FPGA soft core is connected between the controller CPU and the Between the FPGA hard cores, it is used to realize the user layer communication protocol of Profibus-DP; the FPGA hard core is provided with a shared data buffer connected to the FPGA soft core, and is connected to each slave station through the Profibus bus to realize the Profibus ‑DP physical layer and data link layer communication protocol. This application uses FPGA for software architecture design, optimizes the allocation of protocol stack function modules, improves the protocol processing performance and greatly improves the system closed-loop control performance, and can easily realize the highest transmission rate stipulated by the Profibus-DP communication protocol, and Can maintain application interface flexibility.

Description

technical field [0001] The invention relates to but not limited to the technical field of industrial automation, in particular to a method and system for realizing the Profibus-DP master station protocol. Background technique [0002] PROcess FIeld BUS (Profibus) is an international, open fieldbus standard that does not depend on equipment manufacturers. It is widely used in manufacturing automation, process industry automation, and automation in other fields such as building and transportation power. The Profibus standard includes three parts, namely Profibus-DP (Decentralized Periphery, distributed peripherals), Profibus-PA (Process Automation, process automation), and Profibus-FMS (Fieldbus Message Specification, fieldbus information specification). [0003] At present, the implementation methods of the Profibus-DP communication protocol mainly include the following: [0004] Solution 1: implement using Advanced RISC Machines (ARM). This solution is low in cost, but the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40G06F13/42
CPCG06F13/4282H04L12/40H04L2012/40221
Inventor 李丽娜李蒙
Owner BEIJING HOLLYSYS