I/O (Input/Output) intelligent unit applied to DCS ( Data Communication System) system

Abstract

The invention discloses an I / O (Input / Output) intelligent unit applied to a DCS (Data Communication System) system, which aims to solve the technical problem of providing the I / O intelligent unit applied to the DCS system. The I / O intelligent unit applied to the DCS system is convenient to maintain and change. The technical scheme of the I / O intelligent unit is that the I / O intelligent unit mainly consists of an I / O intelligent control module, a system functional module of single point collection and a universal base. The I / O intelligent control module and the system functional module of single point collection are arranged on the universal base. The universal base provides a bus, a system power supply and an I / O terminal of field connection for the I / O intelligent control module. The I / O intelligent control module realizes data collection, output, and signal conditioning to the system functional module of single point collection through the bus and exchanges data with external equipment. The I / O intelligent unit has the advantages that: 1, related influence caused by fault of a functional module is avoided, and hot plug is supported, so that the I / O intelligent unit applied to the DCS system is convenient to install and maintain; and 2, the module developed in the invention is a functional module of the system aiming at single point collection, thereby improving the agility and stability of the system.

Description

technical field [0001] The invention relates to a system function module, in particular to an I / O unit applied to a DCS system. Background technique [0002] DCS system is a comprehensive control system that emerged with the continuous rise of modern large-scale industrial production automation and the increasingly complex requirements of process control. It is the product of the combination of computer technology, system control technology, network communication technology and multimedia technology. It has advanced Control strategy, graphic operation interface and online real-time configuration tool; it can provide window-friendly man-machine interface and powerful communication function, it is a modern equipment for process control and process management. [0003] The DCS system mainly consists of field control station (I / O station), data communication unit, man-machine interface unit (operator station OPS, engineer station ENS) and so on. Among them, the field control st...

AI Technical Summary

Problems solved by technology

According to data statistics, 90% of the problems in the control system of the traditional structure occur in the I / O unit.

However, an I / O unit generally integrates 8 or 16 or even 32 functional modules. Once a functional module fails, repair and replacement will affect the entire I / O unit, thus bringing more trouble to the entire control system. Widespread impact

[0004] In the integrated I / O unit, in addition to the integrated system function modules, there are also processing units, communication units, and power supply parts. Any failure will bring about the maintenance and replacement of the I / O unit as a whole, which will affect the normal function of the system. run

Images