DSQC664 ABB 输入/输出模块 高精度集散控制系统

产品介绍

DSQC664控制器是ABB公司生产的一款高性能产品，具有以下特点:高精度

，高可靠性，高效率，高稳定性技术说明DSQC664控制器使用先进的技术，包括控制算法，信号处理技术，通讯技术软件开发技术。

产品说明

DSQC664控制器包括以下组件:控制器主板，电源模块，通讯模块

，输入/输出模块

PLC一般为大底版式机架，封闭式IO模件，ABB DSQC668 3HACO29157-0O1/04封闭式结构有利与提高IO模件的可靠性，抗射频、抗静电、抗损伤。PLC模件的I/O点数有8点、16点、32点。

DCS集散控制系统(Distributed Control System)又称计算机分布式控制系统，它是20世纪70年代中期迅速发展起来的，它是一个由过程控制级和过程级组成的以通信网络为纽带的多级计算机系统，它把控制技术、计算机技术、图像显示技术以及通信技术结合起来，实现对生产过程的监视、控制和管理。它既打破了常规控制仪表功能的局限，又较好的解决了早期计算机系统对于信息、管理和控制作用过于集中带来的危险性。它主要用于大规模的连续过程控制系统中，如石化、电力等。其**是通信，即数据公路。

它的基本要点是:

(1)从上到下的树状系统，其中通信是关键。

(2)PID在中断站中，中断站联结计算机与现场仪器仪表与控制装。;

(3）是树状拓扑和并行连续的链路结构，有大量电缆从中继站并行到现场仪器仪表。(4)信号系统包括开关量信号和模拟信号。

(5)DCS是控制(站)、操作（操作员站)、现场仪表（(现场测控站)的3级结构。

PLC和DCS系统一般分别适用于离散和过程生产制造。使用PLC系统的离散生产制造设施，一般由单的生产装置组成，主要用于完成部件的组装，例如打标签、填充或研磨等。过程制造设施，通常使用自动化系统，以连续和批处理的方式按照配方而不是按件生产。大型连续加工设备，如炼油厂和化工厂，都使用DCS自动化系统。混合应用通常同时使用PLC系统和DCS系统。为某个应用选择控制器，需要考虑过程的规模、可扩展性和未来的较新计划、集成需求、功能、高可用性以及工厂设施整个生命周期的等等诸多因素。

DSQC664 ABB 输入/输出模块 高精度集散控制系统

Product introduction

The DSQC664 controller is a high-performance product from ABB that offers the following characteristics: High precision

High reliability, high efficiency, high stability Technical description DSQC664 controller uses advanced technology, including control algorithm, signal processing technology, communication technology software development technology.

Product description

The DSQC664 controller consists of the following components: controller board, power module, and communication module

, input/output module

PLC is generally outsole layout frame, closed IO module, ABB DSQC668 3HACO29157-0O1/04 closed structure is beneficial to improve the reliability of IO module, anti-RF, anti-static, anti-damage. PLC module I/O points have 8 points, 16 points, 32 points.

DCS Distributed Control System (Distributed Control System), also known as computer distributed control system, it was rapidly developed in the mid-1970s, it is a multi-level computer system composed of process control level and process level with communication network as a link. It combines control technology, computer technology, image display technology and communication technology to realize the monitoring, control and management of the production process. It not only breaks the limitation of the conventional control instrument function, but also better solves the danger brought by the early computer system for the information, management and control function too centralized. It is mainly used in large-scale continuous process control systems, such as petrochemical, electric power and so on. The first is communication, that is, the data highway.

Its basic gist is:

(1) A tree-like system from top to bottom, where communication is key

(2)PID In the interrupt station, the interrupt station connects the computer with the field instrument and control assembly. ;

(3) is a tree topology and parallel continuous link structure, with a large number of cables parallel to the relay station to the field instrument. (4) The signal system includes switching signal and analog signal.

(5)DCS is a three-level structure of control (station), operation (operator station), and field instrument (field measurement and control station).

PLC and DCS systems are generally suitable for discrete and process manufacturing, respectively. Discrete manufacturing facilities using PLC systems are generally composed of a single production unit, which is mainly used to complete the assembly of parts, such as labeling, filling or grinding. Process manufacturing facilities, typically using automated systems, produce by recipe rather than piece in a continuous and batch manner. Large continuous processing equipment, such as oil refineries and chemical plants, use DCS automation systems. Hybrid applications usually use both PLC systems and DCS systems. Choosing a controller for an application takes into account the size of the process, scalability and newer plans for the future, integration requirements, functionality, high availability, and the full life cycle of the plant facility, among many other factors.