MVI71-MNET由Prosoft技術公司制造，可與Allen-Bradley的PLC系列兼容使用。該模塊是一個Modbus TCP I/P接口模塊，支持塊傳輸讀(BTR)和塊傳輸寫(BTW ),用于實現顯式Modbus消息。該模塊帶有一個支持10/100 Mbps的以太網應用端口和一個與用于模塊配置的RS232電氣標準兼容的配置端口。MVI71-MNET與Modicon控制器、PLC5/E rev C/N、D/E、E/D、SLC5/05系列A、OS503 frn4、1785-ENET系列A、rev D、Interchange V6.2、MicroLogix 1100/1400/ANY via 1761-NET-ENI、compact logix 1768-L43/L45 via 1768-ENBT、compact logix 1769-L32E/L35E/兼容該模塊包括一個強大的Modbus網絡分析儀，并支持特殊的Modbus功能，如命令控制、事件命令、狀態等。它在端口502上支持多達五(5)個獨立的服務器連接，在端口2000上支持相同的功能。該模塊的用戶數據存儲器存儲錯誤代碼、網絡錯誤計數器和端口狀態，可以對其進行映射和分析，以確定網絡的健康狀況和性能。MVI71-MNET可以安裝在遠程或本地機架上。它是一個單槽模塊，安裝在1771機箱的任何可用插槽上。它具有0 – 65535毫秒的最小響應延遲；1 – 65535毫秒的響應超時和0-20的可配置重試次數。它允許從梯形邏輯進行命令控制，并允許傳遞配置。該模塊有一個第三端口，能夠模擬PLC的通道0。

MVI71-MNET模塊是ProSoft Technology制造的Modbus TCP/IP網絡接口模塊。它屬于艾倫-布拉德利/羅克韋爾自動化可編程邏輯控制器系列。該裝置用于允許Allen-Bradley/Rockwell自動化處理器與Modbus兼容設備輕松接口。MVI71-MNET模塊與Modicon可編程自動化控制器和各種其他設備兼容。該裝置具有5000字的寄存器空間，它在處理器和Modbus TCP/IP網絡之間交換數據。它配有單槽1771背板。MVI71-MNET模塊使用梯形邏輯數據傳輸協議，支持多達5000個寄存器。該單元配備了每個客戶端連接最多100個服務器或設備，而接口是10/100 MB以太網兼容應用端口。MVI71-MNET模塊的底板電流負載為800 mA，電壓為5伏DC。

MVI71-MNET模塊包括主機和從機功能，Modbus數據類型在模塊內存數據庫中重疊。MVI71-MNET模塊支持Enron版本的Modbus協議，以確保浮點數據交易。它還帶有一個強大的Modbus網絡分析儀。MVI71-MNET模塊支持特殊功能，包括命令控制、事件命令和狀態監控功能。這些功能由消息傳輸和使用包含的MSG指令來支持。MVI71-MNET模塊為客戶端提供了一個可配置的參數，包括0到65535毫秒的最小響應延遲。對于服務端口502，該單元支持10個獨立的服務器連接。整個數據映射過程從Modbus寄存器40001開始。MVI71-MNET模塊在附帶的用戶數據存儲器中記錄錯誤代碼、網絡錯誤計數器和端口狀態數據。

The MVI71-DNP module is the ideal solution for many people DNP 3.0 master and/or slave application protocol connections must be added to PLC systems. DNP Solutions designed to solve inflation problems Interested in the DNP 3.0 protocol. The protocol was originally developed for the electric utility industry as recommended by IEEE for use in RTU-IED communication applications. Other industrial applications soon emerged in the water/wastewater and oil and gas industries.

MVI71-DNP
The MVI71 DNP 3.0 Master/Slave communication module is a single slot, backplane compatible automated PLC platform for DNP 3.0 interface solutions. This module provides highly configurable support for DNP 3.0 master and slave implementations (minimum level 2), allowing many SCADA and field devices that support the DNP protocol to be integrated into a powerful PLC platform.
Features and benefits
This module supports DNP subset Level 2 features and some Level 3 features allowing many SCADA as well as field devices that support the DNP protocol to be integrated into the PLC platform. The module acts as a DNP network between the input and output modules and the PLC baseboard. Data is transferred from the PLC processor to DNP on an asynchronous network. The database is defined by the user and stored in the module to hold the data required by the protocol. General specification
? Single slot-1771 backplane compatibility This module is recognized as an Input/Output module and has access to processor memory Data transfers between the processor and the module
? Ladder logic is used to transfer data between modules and processors. Includes sample ladder file.
? Download the configuration data file obtained from the configuration text to the module. Sample configuration files are included.