通过通信模块，与消息相关的连接也会起作用
以太网/IP网络
以太网工业（Ethernet/IP）网络协议是一种开放的工业网络标准，支持这两种协议
实时I/O消息和消息交换。以太网/IP网络使用现成的以太网通信
芯片和物理媒体。
有关冗余适配器和以太网的更多信息，请参阅ControlLogix Ethernet/IP网络用户手册，出版物1756-UM004。
以太网/IP网络规范
对于这些需求，请选择此接口
控制I/O模块和驱动器
充当远程以太网/IP链路上I/O的适配器
与其他以太网/IP设备（信息和HMI）通信
桥接以太网/IP链路，将消息路由到其他网络上的设备
1756-EN2F，1756-EN2FK
1756-EN2T，1756-EN2TK，1756-EN2TXT
1756-EN2TP，1756-EN2TPK，1756-EN2TPXT
1756-EN2TR，1756-EN2TRK，1756-EN2TRXT
1756-EN4TR，1756-EN4TRK，1756-EN4TRXT
1756-ENBT，1756-ENBTK
支持设备级环（DLR）和线性拓扑through a communication module, the connection that is related to the message also counts
EtherNet/IP Network
The Ethernet Industrial (EtherNet/IP) network protocol is an open industrial-networking standard that supports both
real-time I/O messaging and message exchange. The EtherNet/IP network uses off-the-shelf Ethernet communication
chips and physical media.
For more information on redundant adapters and Ethernet, see the ControlLogix EtherNet/IP Network User Manual, publication 1756-UM004.
EtherNet/IP Network Specifications
For these requirements Select this interface
Control I/O modules and drives
Act as an adapter for I/O on remote EtherNet/IP links
Communicate with other EtherNet/IP devices (messages and HMI)
Bridge EtherNet/IP links to route messages to devices on other networks
1756-EN2F, 1756-EN2FK
1756-EN2T, 1756-EN2TK, 1756-EN2TXT
1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT
1756-EN2TR, 1756-EN2TRK, 1756-EN2TRXT
1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT
1756-ENBT, 1756-ENBTK
Support Device Level Ring (DLR) and linear topologies