Product Description of ProSoft MVI69L-MBTCP

MVI69L-MBTCP (Modbus TCP/IP Lite Communication Module) is an economical Modbus TCP/IP communication module specially designed by ProSoft for the Rockwell CompactLogix platform. Through a single 10/100Mbps industrial Ethernet interface, it enables client (master station) / server (slave station) communication between CompactLogix PLC and Modbus TCP/IP devices (sensors, instruments, frequency converters, PLCs, HMI, etc.), providing a cost-effective solution for small-scale Ethernet networking and cost-sensitive projects. ProSoft Technology Inc. 

I. Model Analysis

MVI69L: CompactLogix 1769 platform-specific Lite (economical streamlined version) series

MBTCP: Modbus TCP/IP (Ethernet version of Modbus protocol)

Core Positioning: Single Ethernet port, client/server dual mode, Modbus TCP/IP, economical, single-slot installation, zero PLC load, high-speed data exchange

II. Core Hardware Specifications

Compatible Platforms: Full series CompactLogix (v16 and above firmware, L1x–L7x, does not support MicroLogix 1500), 1769 I/O bus, single-slot installation by ProSoft Technology Inc

Backplane Power Consumption: Maximum 450mA @ 5.1VDC by ProSoft Technology Inc

Ethernet Interface

Ports: 1 10/100Mbps adaptive RJ45 (full duplex / half duplex) by ProSoft Technology Inc

Protocols: Modbus TCP/IP (MBAP), Modbus UDP, Encapsulated RTU over TCP

Electrical Isolation: 1500Vrms optical isolation (between backplane and Ethernet port) by ProSoft Technology Inc

IP Configuration: Static IP/DHCP automatic acquisition

Data Buffer: 240 input / 240 output bytes (16 bits) bidirectional database by ProSoft Technology Inc

Modbus Connection Capacity

Client (Master Station): Up to 10 concurrent connections, each connection 16 commands

Server (Slave Station): 2 concurrent connections (1 × MBAP 502 port + 1 × Encapsulated RTU 2000 port)

Supported Function Codes: 1, 2, 3, 4, 5, 6, 8, 15, 16, 17, 22, 23 by ProSoft Technology Inc

Data Format: Standard 16-bit integers, standard floating point, Enron/Daniel floating point by ProSoft Technology Inc

LED Status: OK, BP (backplane), ETH (Ethernet), Tx, Rx, ERR six groups of indicator lights by ProSoft Technology Inc

Operating Environment

Temperature: 0°C ~ +60°C by ProSoft Technology Inc

Storage: -40°C ~ +85°C by ProSoft Technology Inc

Humidity: 5% ~ 95% (no condensation) by ProSoft Technology Inc

Certification: CE, UL, cURus, RoHS by ProSoft Technology Inc

III. Core Functions and Performance

1. Modbus TCP/IP Communication (Core Advantage)

Flexible dual-mode operation

Client (Master Station) mode: Initiates connection actively, polls 10 Modbus TCP slave stations, executes 160 predefined commands (10 connections × 16 commands)

Server (Slave Station) mode: Acts as a Modbus TCP node, allowing 2 remote master stations to read and write module database Command Scheduling: Supports continuous polling, condition triggering, event-driven, and configurable priority. ProSoft Technology Inc

Data Exchange: Modules handle communication independently, with zero PLC CPU scanning load. ProSoft Technology Inc

High-speed Ethernet Data Transmission

10/100Mbps Full Duplex: Data updates occur in milliseconds, far superior to serial Modbus. ProSoft Technology Inc

Standard TCP/IP Network: Compatible with industrial switches and routers, with long-distance and easy networking capabilities.

Direct Mapping of Data: Seamless mapping of module database to PLC controller tags, without the need for complex programming. ProSoft Technology Inc

Advanced Data Processing

Supports standard floating point and Enron/Daniel floating point, compatible with various instruments and third-party devices. ProSoft Technology Inc

Bit operations, word swapping, byte order conversion, automatically adapting to different device data formats. ProSoft Technology Inc

Real-time monitoring of command status, response time, and error count. ProSoft Technology Inc

2. Seamless Integration with PLC System

Deep integration with Studio 5000

Provides Add-On Profile (AOP) and Add-On Instruction (AOI), ready to use out of the box. ProSoft Technology Inc

Automatically generate UDT (User-Defined Tags), including I/O, status, control, and diagnostic data. ProSoft Technology Inc

Configuration files automatically saved to PLC project (ACD files), with one-click backup/restore. ProSoft Technology Inc

Module status, connection status, command execution, error code mapped to PLC tags in real time. ProSoft Technology Inc

Simplifies development and debugging

ProSoft Configuration Builder (PCB) visual configuration, drag-and-drop command editing. ProSoft Technology Inc

Online Monitoring: Real-time viewing of data transmission, command status, and device response. ProSoft Technology Inc

Batch configuration, export/import, supporting rapid deployment at multiple sites. ProSoft Technology Inc

Remote diagnosis, firmware upgrade, without on-site operation. ProSoft Technology Inc

3. Industrial-grade Reliability

Full Electrical Isolation Protection

1500Vrms Isolation: Anti-surge, anti-static, elimination of ground potential difference, protecting PLC and network devices. ProSoft Technology Inc

Powerful Diagnostic Function

Real-time monitoring: Port status, connection status, communication quality, command errors, slave station timeout. ProSoft Technology Inc

Detailed error codes, event logs, communication statistics, quick fault location. ProSoft Technology Inc

Automatic reconnection in case of disconnection, command retry mechanism, ensuring stable communication. ProSoft Technology Inc

Compact and durable design

Single slot, no fan, suitable for narrow cabinets and harsh industrial environments. ProSoft Technology Inc Independent operation: Module failure does not affect the PLC host system ProSoft Technology Inc.

Wide temperature range, vibration-resistant, meeting the requirements for long-term operation in industrial sites ProSoft Technology Inc.

Four. Core features and advantages

1. High cost-effectiveness (Lite series core)

Reduced architecture, single network port: Specifically designed for small-scale, low-cost Ethernet applications

240/240 database: Meeting the requirements for basic data collection and control ProSoft Technology Inc

10 clients / 2 servers: Covering most OEM and small system networking scenarios

Affordable price: Compared to the standard MVI69-MBTCP, it reduces costs and has extremely high cost-effectiveness

2. Easy to use

AOP/AOI ready out of the box: No need for Modbus TCP protocol programming, quick online ProSoft Technology Inc

Client/server one-click switch: Flexible adaptation to networking architectures

Standard Ethernet: Compatible with all industrial network devices, plug-and-play

Single-slot design: Saves cabinet space, easy installation ProSoft Technology Inc

3. Stable and efficient

Full electrical isolation: Industrial-grade anti-interference ProSoft Technology Inc

High-speed Ethernet: Millisecond response, large-capacity data exchange ProSoft Technology Inc

Zero PLC load: Does not affect system performance ProSoft Technology Inc

Wide temperature range, no fan: Long-term stable operation ProSoft Technology Inc

Five. Typical application scenarios

OEM equipment integration: CompactLogix connects Modbus TCP instruments, frequency converters, servo, sensors (packaging machines, machine tools, small equipment)

Ethernet data acquisition: Reading process data such as temperature, pressure, flow, and power from Modbus TCP slave devices

Ethernet communication between PLCs: CompactLogix acts as the master station, polling other brand PLCs/controllers (Modbus TCP slave stations)

HMI/SCADA access: Modbus TCP HMI/SCADA connects with CompactLogix for real-time data interaction

Distributed I/O: Industrial Ethernet connects remote Modbus TCP I/O modules for long-distance distributed control

Old factory renovation: Traditional Modbus devices upgraded to Ethernet, connected to modern CompactLogix system

Six. Summary

MVI69L-MBTCP is the entry-level Modbus TCP/IP communication choice for the CompactLogix platform. With single-channel fully isolated 10/100Mbps Ethernet, 10 clients/2 servers concurrent, Modbus TCP/RTU dual protocols, 240/240 database, zero PLC load, Studio 5000 deep integration, industrial-grade reliability, ultra-high cost-effectiveness, as the core advantages, it is specifically designed for OEM equipment, small systems, Ethernet networking, cost-sensitive projects, and old factory upgrades. It is an economical and efficient industrial-level solution for Rockwell PLCs to connect to Modbus TCP/IP devices.