5SHY35L4512
5SHY35L4512
5SHY35L4512
PC 系统可运行各种应用程序来增强您的控制环境中的安全性。系统具有出厂默认设置，要求重新配置以与深度防御方法的 Schneider Electric 设备加强建议保持一致。
下面的指南介绍了 Windows 7 操作系统中的流程。这些仅作为示例提供。您的操作系统和应用程序可能有不同的要求或流程。 介绍 BMXNOM0200 通讯模块字符模式和 Modbus 通讯的硬件和软件实现原理。
BMXNOM0200 串行链路模块是一个双向异步串行线路模块，支持 Modbus Serial（主站或从站）和字符模式通讯。BMXNOM0200 是单一格式的专用模块，它可以安装在 Modicon X80 机架上。
串行链路支持两种通讯协议：
·Modbus 串行
·字符模式
Modbus 协议
Modbus 是一种标准协议，具有下列属性：
·在总线或串行链路范围内建立不同模块之间的客户端/服务器通讯。客户端由代表服务器的主模块和从模块识别。
·它以数据交换模式（包括请求和响应）为基础，通过不同功能代码提供服务。
·建立一种从 Modbus 类型应用以两种类型的代码交换帧的方法：
·RTU 模式
·ASCII 模式
交换管理过程如下：
·只能由一个设备在总线上发送数据。
·交换由主模块进行管理。只能由主模块启动交换。未经事先邀请，从模块不能发送消息。
·如果出现无效交换，主模块重复发送该请求。如果从模块在给定时间标度范围内没有响应针对它发出的请求，则主模块将声明其不存在。
·如果从模块不理解或无法处理该请求，则会向主模块发送异常响应。在这种情况下，主模块可以重复发送该请求或不重复发送。
主从模块之间可以进行两种类型的对话：
·主模块向特定从模块号发送请求并等待其响应。
·主模块向所有从模块发送请求，不等待答复（一般广播原理）。
字符模式通讯字符模式是两个实体之间的点对点数据交换模式。与 Modbus 协议不同，它不建立分层结构串行链路通讯，也不通过功能代码提供服务。
字符模式是一种异步通讯。文本信息的每个项按照一定的时间间隔逐字符发送或接收。交换花费的时间取决于下列属性：
·一个或两个帧结束字符。
·超时。
·字符数。
function is realized
Can (operate and display, print, trend display and alarm), and also complete system hardware diagnosis and data exchange between different systems
Yes. The process control level realizes various loop adjustments including complex control (various PID, ratio, Simith, etc.) and high-speed logic control
Control, sequence control and batch intermittent control functions.
The internal communication of the process control station (between the controller and various intelligent devices such as i/0 or field instruments) adopts the international standard field general
Line. The field controller supports various field buses such as PROFIBUS, which is the most widely used open field bus in the world
Line international standard, divided into FMS, DP and PA, DP communication rate can be as high as 12MB. Can (din/is011898 standard) bus
The biggest feature is its super robustness and data security. The system also supports MODBUS. The communication with intelligent field instruments is through
IART protocol or fieldbus (31.25kb profibuspa and FF Bus).
The system communication between the operation management level and the process control level is realized by the di ginets network (Industrial Ethernet /iee802.3 standard),
The user can select the communication transmission medium (ordinary cable or optical fiber) and network topology structure according to the actual situation of the application.
Popular PC and MS_ Wi ndows2000 has been widely used in various fields all over the world and has become the de facto standard computer platform
Set. The operating station 0s, engineer station es and data gateway GS of the industrial “system have adopted this platform, thus ensuring the
It is universal, open and easy to use, and brings great convenience for future technology upgrading and maintenance.
System engineering configuration is very convenient. The configuration language is based on ie0611313 industrial standard and provides function block diagram (FBD) and ladder diagram
(LD), instruction list (IL), sequential function diagram (SFC), structured text (st) and other graphical configuration modes. The system contains about 220 functions
The algorithm library of energy block, the basic library with more than 200 graphic symbols and the extended library with a large number of 3D symbols.
The system uses the same set of
