AB1756-CN2R 1PLC可编程控制器756-CN2R

Allen-Bradley 1756-CN2R是一个ControlLogix通信模块，是Logix控制器平台的一部分。此模块主要用于在冗余控制网络拓扑中建立连接，因为它具有两(2)个BNC控制网络端口。该模块占用一个机箱插槽，可安装到标准机箱的任何可用插槽中，如1756-A4、1756-A7、1756-A10、1756-A13、1756-A17，并与标准ControlLogix电源一起使用，特别是1756-PA72/C、1756-PA75/B、1756-PB72/C、1756-PB75/B、1756-PC75/BControlNet网络是一种多节点通信网络，它使用同轴电缆干线，节点使用分支电缆在干线上连接。这个特殊的模块使用1786-RG6四屏蔽RG6同轴电缆连接到网络。1756-CN2R支持最高5 Mbps的传输速度。除了双ControlNet端口，1756-CN2R还配有一(1)个USB端口，支持全速12 Mbps的传输速率。它不能用于数据通信目的。该模块适用于实施分布式I/O拓扑，因为它可以覆盖每段1000米，可以通过使用中继器作为1000米以上控制网络段的信号增强器来轻松扩展。它还可以与人机界面(HMI)设备和监控与数据采集(SCADA)系统进行通信。它最多支持128个Logix连接和131个通信连接。

Allen-Bradley的1756-CN2R control net Connections per Communication Module是一个连接到ControlLogix机箱插槽上的通信模块，它通过通用工业协议(CIP)提供控制网络，并通过对等网络提供增强功能。它具有冗余配置类型，在最多99个节点上以5Mbps的速率进行通信。1756-CN2R最多有128个Logix通信连接。它在5.1V DC时具有1300mA的汲取电流，在24V DC时具有3mA的汲取电流，在22.5 BTU/小时时耗散6.6W的热量。它具有30V DC隔离电压，在500V下在控制网和系统之间测试基本绝缘一分钟。1756-CN2R具有双控制网络BNC、一个控制网络RJ45和一个用于与其它设备连接和通信的USB 1.1端口。它采用开放式外壳类型，指定为T4 IEC温度标准和T4A北美温度标准。1756-CN2R的工作温度范围为0至60摄氏度。摄氏32度和140度。f)在5-95%的非冷凝相对湿度下，其工作冲击率为30G，在10-500Hz下的最大振动为2G。

The Allen-Bradley 1756-CN2R is a ControlLogix communication module that is part of the Logix controller platform. This module is primarily used to establish connections in a redundant control network topology as it has two (2) BNC control network ports. The module occupies one chassis slot and can be installed into any available slot in a standard chassis such as the 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 and is used with standard ControlLogix power supplies, specifically the 1756-PA72/C, 1756-PA75/B, 1756- PB72/C, 1756-PB75/B, 1756-PC75/BControlNet network is a multi-node communication network that uses a coaxial cable trunk and nodes are connected on the trunk using branch cables. This particular module connects to the network using 1786-RG6 quad-screened RG6 coaxial cable.The 1756-CN2R supports transmission speeds up to 5 Mbps. In addition to the dual ControlNet ports, the 1756-CN2R is equipped with one (1) USB port that supports a full 12 Mbps transfer rate. It cannot be used for data communication purposes. This module is suitable for implementing a distributed I/O topology as it can cover up to 1000 meters per segment and can be easily expanded by using repeaters as signal boosters for control network segments over 1000 meters. It can also communicate with human machine interface (HMI) devices and supervisory control and data acquisition (SCADA) systems. It supports up to 128 Logix connections and 131 communication connections.

Allen-Bradley’s 1756-CN2R control net Connections per Communication Module is a communication module that attaches to a ControlLogix chassis slot and provides control networking via Common Industrial Protocol (CIP) and enhanced functionality via peer-to-peer networking. It has a redundant configuration type and communicates at 5 Mbps on up to 99 nodes.1756-CN2R has up to 128 Logix communication connections. It has a draw current of 1300mA at 5.1V DC and 3mA at 24V DC, and dissipates 6.6W at 22.5 BTU/hour. It has 30V DC isolation and is tested for basic insulation between the control network and the system for one minute at 500V.The 1756-CN2R has dual control network BNCs, a control network RJ45, and a USB 1.1 port for connecting and communicating with other devices. It is available in an open enclosure type, specified to T4 IEC temperature standard and T4A North American temperature standard.The 1756-CN2R has an operating temperature range of 0 to 60 deg. 32 degrees Celsius and 140 degrees Celsius. f) It has an operating shock rate of 30G at 5-95% non-condensing relative humidity and a maximum vibration of 2G at 10-500Hz.