FPGA-based ultrahigh-speed industrial controller

Abstract

An FPGA-based ultrahigh-speed industrial controller comprises a main control unit, an FPGA independent power supply unit, a JTAG debugging interface circuit, an EPCS16 program configuration circuit, a clock input and automatic / manual reset circuit unit, a conditioning board power supply unit, a 16-path analog quantity input A / D conversion unit, an eight-path analog quantity output D / A conversion unit, a switch quantity input signal isolation and conditioning unit, a switch quantity output signal isolation and drive unit, an RS232 / half / full-duplex RS485 / RS422 bus communication unit, 16 paths of industrial site switch quantity input, an upper computer or an access industrial network. According to the FPGA-based ultrahigh-speed industrial controller, only one FPGA is used as a main control chip to complete analog quantity and switch quantity acquisition and control of an industrial control system. The FPGA-based ultrahigh-speed industrial controller has the most prominent features of high speed and ultrahigh speed and has the advantages of low cost, good versatility, high stability, good reliability, field programmability and strong expansion capability and the like.

Description

technical field [0001] The invention relates to an industrial controller. In particular, it relates to an FPGA-based ultra-high-speed industrial controller suitable for multi-channel analog quantity acquisition and control occasions. Background technique [0002] In recent years, with the continuous progress and improvement of computer technology and electronic technology, general digital controllers, as industrial automation control products, have been accepted by more and more industrial fields, and have reached a remarkable market size. In the high-tech fields such as aerospace, large-scale equipment manufacturing, and electronic information, higher requirements are put forward for the rapidity, stability, anti-interference, precision, speed and other indicators of the controller, and the demand for ultra-high-speed industrial controllers is increasing. getting stronger. Domestic industrial controllers have made some progress in catching up with the international advanc...

AI Technical Summary

Problems solved by technology

Domestic industrial controllers have made some progress in catching up with the international advanced level in recent years, but the overall level still lags behind foreign countries with advanced technology, and the development is still immature, mainly reflected in: ① It is difficult for controllers to be used in ultra-high-speed applications, Poor sex and stability

Due to the unreasonable design of the software and hardware architecture of the controller, the control period is greater than the requirements of ultra-high-speed applications, the anti-interference and stability are not good, and the final control effect is poor

②The core controller has no independent intellectual property rights

[0003] Nowadays, the domestic industrial controller market is still dominated by foreign products, and the high-level controller market is almost monopolized by several foreign companies. That is to say, my country now lacks an ultra-high-speed, low-cost, high-speed Reliable Industrial Controller

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