Product Description of ProSoft MVI69-DFNT

MVI69-DFNT (EtherNet/IP Client/Server Communication Module) is an EtherNet/IP client/server communication module specially designed by ProSoft for the Rockwell CompactLogix/MicroLogix 1500 platform. Through a single 10/100Mbps Ethernet interface, it supports EtherNet/IP explicit messages (Explicit Messaging), and can be used as a client to actively read and write remote devices, or as a server to respond to external commands, enabling high-speed Ethernet interconnection between CompactLogix and multiple EtherNet/IP devices, PLCs, HMI, and SCADA systems. 

I. Model Analysis

MVI69: Specialized module for CompactLogix / MicroLogix 1769 platform

DFNT: DF1 over Ethernet / EtherNet/IP communication module

Core Functionality: EtherNet/IP client/server, single Ethernet connection, explicit message, high-speed backplane interconnection, multiple concurrent connections

II. Core Hardware Specifications

Compatible Platforms:

CompactLogix: L20, L30, L35, L43, L45 (L43/L45 need to be installed in the first 2 slots of the rack) MicroLogix 1500 LRP

Incompatibility: 1769-L23E-QBFC1B, 1769-L16x, 1769-L18x

Slot occupation: Single slot (standard 1769 size)

Power consumption of the backplane: 800mA @ 5.1VDC

Ethernet interface (1 port):

Standard: 10/100Base-TX adaptive

Connector: RJ45

Isolation: 1500Vrms electrical isolation

IP configuration: Static IP / DHCP automatic acquisition

Configuration port (CFG): RS-232 (RJ45 → DB9), used for module configuration, firmware upgrade

Internal database: Maximum 4000 register (users can customize data mapping)

Client commands: Up to 100 configurable EtherNet/IP commands

Server connections: Up to 20 concurrent server connections

LED status: OK, APP, ERR, LINK, ACT five groups of indicator lights

Operating temperature: 0°C ~ +60°C

Storage temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% (no condensation)

Anti-interference: Vibration 5g, shock 30g (running) / 50g (non-running)

Certification: CE, UL, cURus, RoHS

III. Core Functions and Performance

1. EtherNet/IP protocol support (core advantage)

Dual mode operation:

Client (Client): Sends read/write commands actively to remote EtherNet/IP devices (PLC, HMI, driver)

Server (Server): Responds to read/write requests from external master station (PLC, SCADA, upper computer)

Explicit messages: Supports EtherNet/IP Explicit Messaging (DF1 protocol encapsulation)

Multiple devices concurrency:

Client: Polls multiple remote devices simultaneously

Server: Accepts up to 20 master station connections simultaneously

Command optimization: Supports command queue, automatic retry, timeout handling, error status reporting

Data types: Supports integer, floating-point, string and other data formats

2. Ethernet communication performance

Transmission rate: 10/100Mbps full-duplex / half-duplex adaptive

Data delay: < 5ms (Ethernet data exchange)

Connection number: 100 commands for client / 20 connections for server

Network isolation: 1500Vrms isolation, protects PLC from network surges, interference

3. Backplane high-speed communication (PLC interaction)

Asynchronous data exchange: Module and PLC data interaction is independent of Ethernet, does not occupy PLC scanning time

Data mapping: 4000 bytes internal database, directly maps PLC controller labels

Interaction mode:

Periodic I/O data mirroring

Ladder diagram AOI, MSG instruction control

Real-time reporting of status, error codes

Transmission delay: < 1ms (high-speed backplane bus)

4. Configuration and diagnosis

Configuration software: ProSoft Configuration Builder (PCB)

Visual configuration of IP, client commands, server parameters, data mapping

Configuration file download, backup, batch copying

Online diagnosis:

Ethernet connection status, traffic monitoring, error count

Client command execution status, response time, failure retry

Module operation log, fault code, health status

IV. Core Features and Advantages

1. Seamless integration of AB system Native Compatibility: Specifically designed for CompactLogix/MicroLogix, single-slot, backplane-powered

Plug-and-play: The PLC automatically recognizes as an I/O module, no additional programming required

Tag Mapping: Direct conversion of EtherNet/IP data to PLC tags, simplifying program development

Program Support: Provides Studio 5000 AOI, ladder logic routines, configuration examples

2. Flexible Network Architecture

Single-module multi-device: Connect multiple EtherNet/IP slave/station devices simultaneously

Distributed Control: CompactLogix acts as a gateway, connecting to remote EtherNet/IP networks

Data Sharing: High-speed Ethernet data exchange between multiple PLCs, cross-network segment communication

Redundancy Architecture: Dual-module hot backup to ensure high availability of network communication

3. Industrial-grade Reliability

Electrical Isolation: 1500Vrms Ethernet isolation, stable operation in strong electromagnetic environment

Independent Operation: Module failure does not affect the PLC host

Power Loss Protection: Configuration and command list not lost upon power loss

Wide Temperature Design: 0~60℃, suitable for harsh factory environments

4. Efficient Development, Easy Maintenance

Visual Configuration: Drag-and-drop configuration in PCB software, rapid deployment

Online Debugging: Real-time monitoring of communication status, quick fault location

Batch Application: Copy configuration files, rapid production at multiple sites

V. Typical Application Scenarios

Multi-PLC Ethernet Networking: CompactLogix connects with ControlLogix, PLC-5, SLC 500 and other AB PLCs

EtherNet/IP Device Access: Connect servo drives, frequency converters, intelligent instruments, sensors, etc. via EtherNet/IP

SCADA/HMI Monitoring: Acts as a server, responding to real-time monitoring from upper computers and SCADA systems

Cross-Network Data Gateway: Data forwarding and protocol conversion between different workshops and factory EtherNet/IP networks

Renovating Old Equipment: Old non-Ethernet equipment connects to CompactLogix Ethernet system through modules

Distributed I/O Expansion: Remote EtherNet/IP I/O modules connected to local CompactLogix controllers

VI. Summary

MVI69-DFNT is the standard solution for EtherNet/IP communication on the CompactLogix platform. With single-channel isolated Ethernet, client/server dual mode, 100 client commands, 20 server connections, 4000-byte large data buffer, backplane high-speed asynchronous communication, seamless compatibility with all AB series, industrial-grade reliability, and visual configuration as core advantages, it is specifically designed for multi-PLC networking, EtherNet/IP device access, SCADA monitoring, and cross-network data exchange, making it the preferred communication module for achieving full Ethernet interconnection of Rockwell's entire series of equipment in industrial automation.