PCD232A 3BHE022293R0101 ABB 通讯模块

 PCD232A 3BHE022293R0101 ABB 通讯模块

离散控制系统(DCS)在过程控制行业中占有支配的地位，而可编程逻辑控制器(PLC)在离散制造行业中占有统治的地位。在过程控制行业中，过程控制的功能基本上通过采用离散控制系统(DCS)来进行调节控制，而其停止运行的功能寻址则由可编程逻辑控制器(PLC)完成。本文将对DCS与PLC系统的集成应用前景进行探讨。过提控制行业和DCS轰统炼油厂、化工厂、发电厂、造纸厂和金属冶炼厂等一类过程控制行业，总是离不开采用DCS作为过程中的控制系统。其主要的一类控制功能特性，例如:控制器、历史状态、显示、现场输出数据等都是“分布式”的。包括处理器、v0卡分布、通路和现场连接装置(用于执行命令)在内的分布DCS系统流程图可 灵活地添加、修正或取消控制点的连接。在某种意义上来说，它们能起到隔离的作用，不致使系统上某单部件的故障影响到其他部件的功能。例如，一个控制闭环的故障不致影响到其他相连闭环回路的功能特性。其工作性能和可靠性确立了DCS系统在过程控制行业中的应用地位。离散控制系统(DCS)在过程控制行业中占有支配的地位，而可编程逻辑控制器(PLC)在离散制造行业中占有统治的地位。在过程控制行业中，过程控制的功能基本上通过采用离散控制系统(DCS)来进行调节控制，而其停止运行的功能寻址则由可编程逻辑控制器(PLC)完成。本文将对DCS与PLC系统的集成应用前景进行探讨。过提控制行业和DCS轰统炼油厂、化工厂、发电厂、造纸厂和金属冶炼厂等一类过程控制行业，总是离不开采用DCS作为过程中的控制系统。其主要的一类控制功能特性，例如:控制器、历史状态、显示、现场输出数据等都是“分布式”的。

 PCD232A 3BHE022293R0101 ABB 通讯模块

Discrete control system (DCS) occupies a dominant position in the process control industry, while programmable logic controller (PLC) occupies a dominant position in the discrete manufacturing industry. In the process control industry, the function of process control is basically regulated and controlled by using discrete control system (DCS), and the function of stopping operation is addressed by programmable logic controller (PLC). This paper will discuss the integrated application prospect of DCS and PLC system. In the process control industry, such as refinery, chemical plant, power plant, paper mill and metal smelter, it is always inseparable to adopt DCS as the process control system. Its main control functions, such as controller, historical status, display and field output data, are all "distributed". The flow chart of distributed DCS system, including processor, v0 card distribution, path and field connection device (used to execute commands), can flexibly add, modify or cancel the connection of control points. In a sense, they can play the role of isolation, so that the failure of a single component on the system will not affect the functions of other components. For example, the failure of one control closed-loop will not affect the functional characteristics of other connected closed-loop circuits. Its working performance and reliability establish the application position of DCS system in process control industry. Discrete control system (DCS) occupies a dominant position in the process control industry, while programmable logic controller (PLC) occupies a dominant position in the discrete manufacturing industry. In the process control industry, the function of process control is basically regulated and controlled by using discrete control system (DCS), and the function of stopping operation is addressed by programmable logic controller (PLC). This paper will discuss the integrated application prospect of DCS and PLC system. In the process control industry, such as refinery, chemical plant, power plant, paper mill and metal smelter, it is always inseparable to adopt DCS as the process control system. Its main control functions, such as controller, historical status, display and field output data, are all "distributed".