VME-7807RC-410000 GE模块 通用电气 PLC模块卡件 伺服控制器

　　VME-7807RC-410000 GE模块 通用电气 PLC模块卡件 伺服控制器

　　VME-7807RC-410000 GE模块 通用电气 PLC模块卡件 伺服控制器

　　VME-7807RC-410000 GE模块 通用电气 PLC模块卡件 伺服控制器

　　主营DCS配件,PLC模块：本特利,英维思,伍德沃德,福克斯波罗,西屋,瑞恩,施德,ABB,Motorola,GE，安川,等等各大品牌的PLC模块,机器人系统配件大型伺服系统备件

　　工控产品基本上都有

　　控制系统通常采用分级递阶结构，每一级由若干子系统组成，每一个子系统实现若干特定的有限目标，形成金字塔结构。

　　可靠性是DCS发展的生命，要保证DCS的高可靠性主要有三种措施：一是广泛应用高可靠性的硬件设备和生产工艺；二是广泛采用冗余技术；三是在软件设计上广泛实现系统的容错技术、故障自诊断和自动处理技术等。当今大多数集散控制系统的MTBF可达几万甚至几十万小时。

　　分散控制系统是以微处理器为基础，采用控制功能分散、显示操作集中、兼顾分而自治和综合协调的设计原则的新一代仪表控制系统。集散控制系统简称DCS，也可直译为“分散控制系统”或“分布式计算机控制系统”。

　　它采用控制分散、操作和管理集中的基本设计思想，采用多层分级、合作自治的结构形式。其主要特征是它的集中管理和分散控制。DCS在电力、冶金、石化等各行各业都获得了较其广泛的应用。

　　The control system usually adopts a hierarchical structure, each level is composed of several subsystems, and each subsystem realizes several specific limited objectives, forming a pyramid structure.

　　Reliability is the life of DCS development. There are three main measures to ensure the high reliability of DCS: one is to widely use high reliability hardware equipment and production technology; Second, redundancy technology is widely used; Thirdly, the fault tolerance technology, fault self diagnosis and automatic processing technology of the system are widely implemented in the software design. Nowadays, the MTBF of most distributed control systems can reach tens of thousands or even hundreds of thousands of hours.

　　Distributed control system is a new generation of instrument control system based on microprocessor, which adopts the design principles of decentralized control functions, centralized display and operation, taking into account the separation, autonomy and comprehensive coordination. Distributed control system is abbreviated as DCS, which can also be translated as "distributed control system" or "distributed computer control system".

　　It adopts the basic design idea of decentralized control, centralized operation and management, and adopts the structural form of multi-level classification, cooperation and autonomy. Its main feature is its centralized management and decentralized control. DCs has been widely used in electric power, metallurgy, petrochemical and other industries.