5X00286H13
三角洲™ 系统具有冗余以太网输入/输出卡和到以太网设备网络的单工连接。支持的工业以太网协议：Modbus TCP接口Modbus TCP接口将支持Modbus数据源，如PLC、MCC、分析仪和通信Modbus TCP的类似设备。Modbus TCP接口是一个Modbus客户端，用于从Modbus服务器设备读取和写入数据。Modbus服务器设备可以是Modbus TCP设备或使用Modbus TCP网关的Modbus串行设备。Modbus TCP接口支持以下类型的数据访问：„从Modbus线圈、离散输入、保持寄存器和输入寄存器读取输入数据。„将输出数据写入线圈和保持寄存器。将定期执行所有读取，并在写入时发送输出。以太网/IP以太网/IP协议允许数据源，如PLC、智能现场设备（IFD）、变速驱动器、MCC和分析仪；以及其他通信以太网/IP的设备，通过EIOC直接连接到DeltaV。以太网/IP接口将支持隐式和显式消息的连接，以允许访问1级和3级以太网/IP输入/输出适配器。由于协议定义的独占所有者通信，需要特别考虑以太网/IP 1类隐式和3类显式控制消息（向设备发送输出）的冗余。有关更多信息，请参阅DeltaV系统规划指南。还支持带有Logix标记的Class 3 PCCC和UCMM消息类。

The DeltaV™ system with a redundant Ethernet I/O Card and simplex connection to the Ethernet Device Network. Supported Industrial Ethernet Protocols: Modbus TCP Interface The Modbus TCP interface will support Modbus data sources such as PLCs, MCCs, analyzers and similar devices communicating Modbus TCP. The Modbus TCP interface is a Modbus Client reading and writing data from/to Modbus Server devices. The Modbus server devices can be Modbus TCP devices or Modbus serial devices using a Modbus TCP gateway. The Modbus TCP interface supports the following types of data access: „ Reading input data from Modbus Coils, Discrete Input, Holding Registers, and Input Registers. „ Writing output data to Coils and Holding registers. All reads will be performed periodically and outputs will be sent when they are written. EtherNet /IP The EtherNet/IP protocol allows data sources such as PLCs, Intelligent Field Devices (IFDs), variable-speed drives, MCCs, and analyzers; as well as other devices communicating EtherNet/IP to connect directly in to DeltaV via the EIOC. The EtherNet/IP interface will support connections for both implicit and explicit messaging to allow access to both Class 1 and Class 3 EtherNet/IP I/O adapters. Redundancy with EtherNet/IP Class 1 Implicit and Class 3 Explicit messaging for control (sending outputs to the devices) require special considerations due to exclusive owner communications defined by the protocol. Please refer to the DeltaV System Planning Guide for more information. Class 3 PCCC and UCMM with Logix tags message classes are also supported.