LENZE EPL-10200-XX 模块卡件

LENZE EPL-10200-XX  模块卡件

LENZE EPL-10200-XX  模块卡件在以后的近30年间，DCS先与成套设备配套，而后逐步扩大到工艺装置改造上，与此同时，也分成大型DCS和中小型DCS两类产品，使其性能价格比更具有竞争力。DCS产品虽然在原理上并没有多少突破，但由于技术的进步、外界环境变化和需求的改变，共出现了三代DCS产品。1975年至80年代前期为第一代产品，80年代中期至90年代前期为第二代产品，90年代中期至21世纪初为第三代产品。

LENZE EPL-10200-XX  模块卡件实际的DCS操作站是典型的计算机，它与控制站不同，有着丰富的外围设备和人机界面。在人机界面方面，逐渐过渡为以GUI图形用户界面为平台并采用鼠标，组态时制作流程图和控制回路图等采用菜单、窗口等，使人机界面友好。第三代DCS操作站是在个人计算机（PC）及Windows操作系统普及和通用监控图形软件已商品化的基础上诞生的。DDE或OPC接口技术，以太网接口与管理网络相连。DCS系统组态、操作站组态、控制站组态均有相应软件，为DCS用户的工程设计人员提供人机界面。有的DCS的采用通用监控图形软件，或以此类软件为核心，进行二次开发。

LENZE EPL-10200-XX  模块卡件因为数据通信标准牵涉到网络结构、通信介质（信道）、通信协议、IEEE802.4令牌总线传输方式和IEEE802.5令牌环网传输方式的通信协议在DCS系统中应用最广，是否能够成为今后DCS的通讯标准，还有待观察。

LENZE  EPL-10200-XX  模块卡件

LENZE EPL-10200-XX module card in the next nearly 30 years, DCS first matched with complete sets of equipment, and then gradually expanded to the process plant transformation, at the same time, it is also divided into large DCS and small and medium-sized DCS two types of products, so that the performance price is more competitive. Although there are not many breakthroughs in principle, there have been three generations of DCS products due to technological progress, changes in the external environment and changes in demand. From 1975 to the early 1980s it was the first generation of products, from the mid-1980s to the early 1990s it was the second generation of products, and from the mid-1990s to the early 21st century it was the third generation of products.

LENZE EPL-10200-XX module card The actual DCS operating station is a typical computer, which is different from the control station, with a wealth of peripherals and human-machine interface. In the man-machine interface, gradually transition to the GUI graphical user interface as the platform and the use of mouse, the configuration of the production of flow charts and control loop diagrams using menus, Windows, etc., to make the man-machine interface friendly. The third generation DCS operating station was born on the basis of the popularity of personal computers (PCS) and Windows operating systems and the commercialization of general monitoring graphics software. DDE or OPC interface technology, Ethernet interface connected to the management network. DCS system configuration, operation station configuration, control station configuration have corresponding software, for DCS users to provide a man-machine interface. Some DCS use general monitoring graphics software, or such software as the core, secondary development.

LENZE EPL-10200-XX module card because the data communication standard involves the network structure, communication medium (channel), communication protocol, IEEE802.4 token bus transmission mode and IEEE802.5 token ring network transmission mode communication protocol is the most widely used in the DCS system. Whether it can become the communication standard of DCS in the future remains to be seen.

LENZE  EPL-10200-XX  模块卡件