1756-CNB A-B 自动化控制器桥接

产品名称:1756-CNB模块

品牌:AB

Allen-Bradley 1756-CNB是一种ControlNet 通信模块，设计用于Allen-BradleyControlLogix可编程自动化控制器(PAC)。该模块在PAC和网络上的其他ControlNet设备(如/O模块、HMI、驱动器和其他控制器）之间提供高速通信接口。1756-CNB模块在ControlNet网络上最多支持99个节点，并提供5Mbps的最大数据传输速率。它支持ControlNet冗余以提高系统可靠性，并具有内置诊断和状态指示器以便于故障排除。

该模块可以使用ControlLogix编程软件进行配置和编程，并支持各种通信协议，包括EtherNet/lP、Modbus TCP/IP和DeviceNet。它还支持一系列数据交换模式，包括显式消息传递和隐式消息传递，以根据应用程序的需要提供灵活的数据传输选项。

1756-CNB模块与各种Allen-Bradley ControlLogix控制器兼容，并在这些控制器与其他ControlNet设备(如/O模块、驱动器和HMI）之间提供桥接。它在ControlNet网络上支持多达99个节点,并为数据传输提供高达5MB的带宽。

1756-CNB模块的一些关键功能包括:

ControlNet网络上不同设备之间的快速可靠通信与各种Allen-Bradley ControlLogix控制器的兼容性在ControlNet网络上最多支持99个节点

5MB带宽用于数据传输

诊断和状态指示灯，便于故障排除可热插拔设计，便于安装和更换

1756-CNB模块是许多工业控制系统中的关键部件，设计用于承受工业环境的恶劣操作条件。它在ControlNet网络上的不同设备之间提供快速可靠的通信，从而实现工业过程的最佳性能。

1756-CNB模块是一个单槽模块，带有一⑴)个用于非冗余媒体操作的BNC连接器和—(1)个NAP(带屏蔽的RJ-458计)的集成通信端口。

这种ContrlNet桥与Allen-Bradley平台的ControlNet模块兼容，如FlexIO系统、POINT IO、SLC和PLC5 ControlNet、ControlNet接口卡，包含合作伙伴模块。

它可用于实现分布式/O应用，其中安装了大量包含Controllogix l/O模块的机架。它还可以用来桥接不同协议的网络，并通过ControlNet网络交换信息。在控制网系统中，与单个控制网桥模块的连接允许有一条到网络中主控制器的直接通路，在那里可以执行程序修改和测试。此外，该协议还可用于与人机界面(HMIl)和监控与数据采集(SCADA)应用程序接口。

它还能够通过访问显示连接属性和错误计数器的模块在线背板连接来实现自我诊断。模块的前面板也提供有文本显示，其循环变化以显示模块名称连接状态、节点地址和其他参数。

1756-CNB A-B 自动化控制器桥接

Product name :1756-CNB module

Brand :AB

Allen-Bradley 1756-CNB is a ControlNet communication module designed for use with Allen-BradleyControlLogix Programmable Automation Controllers (PACS). This module provides a high-speed communication interface between the PAC and other ControlNet devices on the network, such as /O modules, Hmis, drives, and other controllers. The 1756-CNB module supports up to 99 nodes on the ControlNet network and offers a maximum data transfer rate of 5Mbps. It supports ControlNet redundancy for increased system reliability and has built-in diagnostic and status indicators for easy troubleshooting.

The module can be configured and programmed using the ControlLogix programming software and supports various communication protocols, including EtherNet/lP, Modbus TCP/IP, and DeviceNet. It also supports a range of data exchange modes, including explicit and implicit messaging, to provide flexible data transfer options depending on the needs of the application.

The 1756-CNB module is compatible with various Allen-Bradley ControlLogix controllers and provides Bridges between these controllers and other ControlNet devices such as /O modules, drives, and Hmis. It supports up to 99 nodes on the ControlNet network and provides up to 5MB bandwidth for data transfers.

Some of the key features of the 1756-CNB module include:

Fast and reliable communication between different devices on the ControlNet network Compatibility with various Allen-Bradley ControlLogix controllers Up to 99 nodes are supported on the ControlNet network

The 5MB bandwidth is used for data transmission

Diagnostic and status indicators for easy troubleshooting Hot swappable design for easy installation and replacement

The 1756-CNB module is a key component in many industrial control systems and is designed to withstand the harsh operating conditions of industrial environments. It provides fast and reliable communication between different devices on the ControlNet network, enabling optimal performance for industrial processes.

The 1756-CNB module is a single slot module with one (1) BNC connector for non-redundant media operation and - (1) NAP(RJ-458-meter with shielding) integrated communication port.

This ContrlNet bridge is compatible with the ControlNet modules of the Allen-Bradley platform, such as FlexIO System, POINT IO, SLC and PLC5 ControlNet, ControlNet interface cards, including partner modules.

It can be used to implement distributed /O applications where a large number of racks containing Controllogix l/O modules are installed. It can also be used to bridge networks of different protocols and exchange information over the ControlNet network. In a control network system, the connection to a single control bridge module allows a direct path to the main controller in the network, where program modifications and tests can be performed. In addition, the protocol can be used to interface with Human Machine Interface (HMIl) and Supervisory Control and Data Acquisition (SCADA) applications.

It is also capable of self-diagnosis by accessing module online backplane connections that display connection properties and error counters. The front panel of the module also provides a text display that changes in a loop to display the module name connection status, node address, and other parameters.