1757-SRM  |  1769-L32E     |      系统冗余模块

型号：1757-SRM

类别：系统冗余模块

成色：全新，非全新

库存：有

质保;一年

连接器： SC型

安装： ControlLogix 机箱

机柜类型额定值： 无（开放式）

电缆类型 ：62.5/125微米多模光纤电缆

功率耗散，最大值： 11.28 瓦

支持的控制器 ：Logix 5560

散热，最大值： 38.49 BTU/小时

Allen-Bradley 1757-SRM 是 ProcessLogix 和 ControlLogix 系统冗余模块。该模块通过与另一个 ControlLogix 机箱中的另一个 1756-SRM 配对来实现控制器冗余。该模块是一个两 （2） 插槽模块，带有集成光纤端口，兼容带 SC 连接器的 62.5/125 微米多模光纤电缆。

描述

1757-SRM 是一个 Allen-Bradley ProcessLogix 和 ControlLogix 模块，用于实现控制器冗余以提高过程系统的可用性。这是通过使用与安装在两 （2） 个不同 ControlLogix 机箱上的主控制器同步的辅助控制器来实现的。

实施冗余控制器系统时，必须安装两 （2） 个相同的 ControlLogix 机箱。机箱尺寸、安装的模块和位置、系统电源和模块版本应相互匹配。这符合冗余控制器设置的条件。其中一个机箱将称为主机箱，而另一个则称为辅助机箱。

1757-SRM 具有一个光纤端口，其中连接了带有 SC 连接器的 62.5/125 微米多模光纤电缆。电缆的另一端连接到安装在另一个 ControlLogix 机箱上的合作伙伴 1757-SRM。该电缆用作模块和整个辅助机架的同步链路。

1757-SRM 是一个两 （2） 插槽模块。它具有模块状态显示功能，可指示代表模块运行状态的文本代码。PRI LED 告诉用户，该机箱对中的哪个机箱作为主机箱运行。COM LED 表示通信和同步状态。健康状态 LED 指示模块是否正在执行自检、遇到严重故障或运行正常。

Model: 1757-SRM

Category: System redundancy module

Finish: New, not new

Stock: Yes

Warranty; A year

Connector: SC type

Installation: ControlLogix chassis

Cabinet Type Rating: None (open)

Cable type: 62.5/125 micron multimode fiber optic cable

Power dissipation, Max. 11.28 watts

Supported controller: Logix 5560

Heat dissipation, maximum: 38.49 BTU/ hour

Allen-Bradley 1757-SRM is a redundant module for ProcessLogix and ControlLogix systems. This module enables controller redundancy by pairing with another 1756-SRM in another ControlLogix chassis. The module is a two (2) slot module with an integrated fiber port that is compatible with 62.5/125 micron multimode fiber cables with SC connectors.

Description

The 1757-SRM is an Allen-Bradley ProcessLogix and ControlLogix module for controller redundancy to improve the availability of process systems. This is achieved by using a secondary controller that is synchronized with the primary controller installed on two (2) different ControlLogix cases.

When implementing a redundant controller system, two (2) identical ControlLogix enclosures must be installed. The chassis dimensions, installed modules and positions, and system power supply and module versions must match each other. This meets the conditions set by the redundant controller. One case will be called the main case, while the other will be called the auxiliary case.

The 1757-SRM has a fiber optic port where a 62.5/125 micron multimode fiber cable with SC connector is connected. The other end of the cable connects to the partner 1757-SRM mounted on another ControlLogix chassis. This cable serves as a synchronous link between the module and the entire auxiliary frame.

The 1757-SRM is a two-slot module. It has a module status display function that indicates the text code representing the module running status. The PRI LED tells the user which of the chassis pairs runs as the main chassis. COM LED indicates communication and synchronization status. Health Status LED indicates whether the module is performing a self-test, experiencing a serious failure, or operating normally.