ALSTOM LE109A-1 模块备件现货

ALSTOM  LE109A-1   模块备件现货

ALSTOM  LE109A-1   模块备件现货

品牌:ALSTOM

型号 ： LE109A-1

产品描述

ALSTOM  LE109A-1 的系统软件，包括实时操作系统、编程语言及编译系统、数据库系统、自诊断系统等，只是完善程度不同而已。第二代DCS控制站开始有面向过程语言和高级语言；第三代DCS控制站的系统软件可以完成离线组态及在线修改控制策略。为了完成控制策略，对于顺序控制和批量控制组态编程，各种DCS控制站采用不同的方法。

ALSTOM  LE109A-1 具有操作员功能、工程师功能、通信功能和高级语言功能等，其中工程师功能中包括系统组态、系统维护、系统通用（Utility）功能，还有系统配置、操作标记、趋势记录、历史数据管理、总貌画面组态、控制站组态、工艺单元或区域组态等。

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。

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。

ALSTOM  LE109A-1   模块备件现货

Brand :ALSTOM

Model: LE1099A-1

Product description

ALSTOM LE109A-1 system software, including real-time operating system, programming language and compilation system, database system, self-diagnosis system, etc., but the degree of perfection is different. The second generation DCS control station began to have process-oriented language and high-level language; The system software of the third generation DCS control station can complete off-line configuration and on-line modification of control strategy. In order to complete the control strategy, various DCS control stations adopt different methods for sequential control and batch control configuration programming.

ALSTOM LE109A-1 has operator function, engineer function, communication function and advanced language function, among which the engineer function includes system configuration, system maintenance, system Utility function, and so on. There are also system configuration, operation marking, trend recording, historical data management, overall picture configuration, control station configuration, process unit or area configuration, etc.

The actual DCS operating station is a typical computer, which is different from the control station and has abundant peripheral equipment and man-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.

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 in the DCS system is the most widely used, whether it can become the DCS communication standard in the future, it remains to be seen.

ALSTOM  LE109A-1   模块备件现货