ABB AC900F学习笔记45:Freelance_Mounting_and_Installation_AC_900F_Controller-5

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2.2 Controller redundancy

控制器冗余

      Two controllers of identical configuration - hereinafter referred to as redundant controllers - are used for redundant operation. While the active controller has the “Primary“ status, the “Secondary“ status is assigned to the other controller. During normal operation, the primary is the active controller and the secondary the passive one (hot standby).

      两个相同配置的控制器——简称冗余控制器——用于冗余操作。当工作的控制器为“主”状态,“辅”状态分配给另一个控制器。在正常操作期间,主动控制器工作,次要是被动控制器(热备)。

      For synchronization purposes, a point-to-point Ethernet connection (100 MBit/s) must be established between the controllers. This connection is also referred to as redundancy link.

     出于同步目的,控制器之间必须建立点对点以太网连接(100 MBit/s)。此连接也称为冗余链接。

      A redundant configuration may be composed of two controllers of basic or medium level configuration. Make sure to use only the CI 930F, CI 910F or CI 773F communication interface modules for the medium configuration level as only these module types are suitable for redundant operation.

     冗余配置可能由基本或者中档等级的两个控制器组成。确保仅使用 CI 930F、CI 910F 或 CI 773F 通信接口模块进行中等配置级别,因为只有这些模块类型适合冗余操作。

The S700 Direct I/O and the CM 772F communication module are not supported with redundant controller arrangement

冗余结构不支持S700 直接 I/O 和 CM 772F 通信模块

If the primary controller (Primary) fails, the secondary controller is activated via a designated communication connection (redundancy link).

如果主控制器故障,则通过指定的通信连接(冗余链接)激活辅助控制器。

The cyclical adjustment ensures smooth change over from the primary to the secondary controller, i.e.

周期性调整确保从主控制器平稳转换为次要控制器,即

  • the outputs of fieldbus-connected I/O components are maintained.
  • 保持现场总线连接的IO组件输出
  • the internal status (component data, variables) is maintained.
  • 保持内部状态(组件数据、变量)
  • the configuration and operating data of the primary and secondary controllers are automatically adapted
  • 主备控制器的配置和操作数据自动适应

AC 900F in redundant configuration using the on-board interfaces for Modbus and Telecontrol protocols

冗余AC 900F使用板载接口做Modbus和远程控制(的冗余通讯)

这张图就可以看出荣誉结构的AC 900F与第三方设备做MODBUS/TELECONTROL协议通讯的拓扑结构

Redundant AC 900F with PROFIBUS line redundancy in the field at a redundant Control Net. The figure below shows a configuration with PROFIBUS line redundancy using a CI 930F module.

在冗余控制网络,冗余AC 900F使用冗余PROFIBUS线缆。下图展现了使用CI 930F模板实现PROFIBUS线缆冗余。

      上图可以看出冗余的AC 900F每个CPU左边有一个CI930通讯模板,此通讯模板有两个PROFIBUS接口,每个接口都是一条PROFIBUS总线。连接S700 IO时,时先将冗余PROFIBUS总线连接到PLM01设备上,RLM01输出一根PROFIBUS线缆来连接S700 IO。连接S900和S800 IO时,两个PROFIBUS总线同时接入。连接其他第三方无非冗余接口的从设备时,也是通过PLM01设备双PROFIBUS线缆变单PROFIBUS线缆再连接,或者挂在任一Profibus总线上。

      An existing PROFIBUS line in a single configuration with a CI 773F module can be enhanced to become a PROFIBUS with redundant lines by using additional RLM 01 modules, as shown in the following figure

一个已有的使用CI 773F模板做单站配置的PROFIBUS线缆可以通过添加使用RLM01模板的方式增强成为Profibus冗余线缆,如下图所示。

 

 

posted @ 2021-08-12 09:35  来自金沙江的小鱼  阅读(354)  评论(0编辑  收藏  举报