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Allen-Bradley 1756-RM2  冗余模块 增强功能

Allen-Bradley 1756-RM2 冗余模块 增强功能 【产品详情】 Allen-Bradley 1756-RM2是一个ControlLogix冗余模块。它具有速度高达1000 Mbps的增强功能。当与两个机箱中的1756-L7x控制器配对时,它可以提供最佳的扫描性能。对于交叉负载,1756-RM2使用无单点故障的冗余光纤端口。在通道切换期间,处理机箱保持同步,而扫描时间可能会遇到

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产品详情

Allen-Bradley  1756-RM2  冗余模块 增强功能

 

1756-RM2 2.jpg

1756-RM2 .jpg


【产品详情】

 

 

Allen-Bradley 1756-RM2是一个ControlLogix冗余模块。它具有速度高达1000 Mbps的增强功能。当与两个机箱中的1756-L7x控制器配对时,它可以提供最佳的扫描性能。对于交叉负载,1756-RM2使用无单点故障的冗余光纤端口。在通道切换期间,处理机箱保持同步,而扫描时间可能会遇到大约10毫秒的延迟。它具有增强的安全功能,具有无干扰诊断功能。


1756-RM2冗余模块在5.1V DC时消耗1.16 A电流,在24V DC时消耗3.4 mA电流。它的最大功耗为6W,热耗散为21 BTU/小时。它可以安装在ControlLogix机箱的任何插槽中。1756-RM2重0.64磅。它有一个开放的外壳。对于通信,它支持多达7个增强型控制网络和以太网/IP通信模块。对于布线,1756-RM2支持1756-RMC1、1756-RMC3和1756-RMC10电缆,长度分别为1米、3米和10米。


ControlLogix 5560和ControlLogix 5570系列控制器支持1756-RM2模块。冗余模块配置工具RSLinx 2.59。


根据所使用的冗余模块的组合,可以启用多种同步速度。特别是,如果使用相同的1756-RM2模块,速度可达1000 Mbps。如果同时使用A系列或B系列1756-RM2,速度可达100 Mbps。使用1756-RM2冗余模块可实现长达20 ms的控制器切换。


与冗余模块的第一个版本不同,1756-RM2只占用任何ControlLogix机箱的一个插槽。实施冗余时,必须安装一对冗余机架,每个机架安装相同的控制器类型和版本。I/O模块、智能模块和包含伙伴模块不能安装在任何冗余机箱对中。这些模块必须安装在三阶或更高阶的机箱上,这取决于所用通信模块的支持节点数。


冗余模块具有集成的光纤连接器,其中控制器同步是主动发生的。该光缆配有LC型连接器,电缆类型为8.5/125微米单模光缆。每个冗余模块之间最多可建立10公里(10,000米,10936.13码)的距离,但是,理想情况下,冗余机箱对彼此靠近。


 

Allen-Bradley  1756-RM2  冗余模块 增强功能

1756-RM2 4.jpg

1756-RM2 5.jpg

英文介绍

 

Allen-Bradley 1756-RM2 is a ControlLogix redundant module. It has enhanced features with speeds up to 1000 Mbps. When paired with the 1756-L7x controller in both cases, it provides the best scanning performance. For cross loads, the 1756-RM2 uses redundant fiber optic ports with no single point of failure. During channel switching, the processing chassis stays synchronized, while scan times can experience a delay of about 10 milliseconds. It has enhanced security features with interference-free diagnostics.


The 1756-RM2 redundant module consumes 1.16A current at 5.1V DC and 3.4 mA current at 24V DC. It has a maximum power consumption of 6W and a heat dissipation of 21 BTU/ hour. It can be installed in any slot in the ControlLogix chassis. 1756-RM2 weighs 0.64 LBS. It has an open shell. For communication, it supports up to 7 enhanced control networks and Ethernet /IP communication modules. For cabling, the 1756-RM2 supports 1756-RMC1, 1756-RMC3, and 1756-RMC10 cables in lengths of 1, 3, and 10 meters, respectively.


The ControlLogix 5560 and ControlLogix 5570 series controllers support 1756-RM2 modules. Redundant module configuration tool RSLinx 2.59.


Depending on the combination of redundant modules used, a variety of synchronization speeds can be enabled. In particular, if the same 1756-RM2 module is used, the speed can reach 1000 Mbps. If you use A series or B Series 1756-RM2 at the same time, the speed can reach 100 Mbps. The 1756-RM2 redundant module enables controller switching of up to 20 ms.


Unlike the first version of the redundant module, the 1756-RM2 occupies only one slot in any ControlLogix chassis. To implement redundancy, you must install a pair of redundant racks, each with the same controller type and version. I/O modules, smart modules, and inclusion partner modules cannot be installed in any redundant chassis pairs. These modules must be installed on a chassis of level 3 or higher, depending on the number of supported nodes of the communication module used.


The redundant module has an integrated fiber optic connector where controller synchronization occurs actively. The cable is equipped with LC connectors and is of 8.5/125 micron single-mode cable type. A maximum distance of 10 km (10,000 m, 10,936.13 yd) can be established between each redundant module, but, ideally, the redundant enclosures are close to each other.


 

Allen-Bradley  1756-RM2  冗余模块 增强功能

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