ProSoft MVI69-MCM Modbus Master/Slave Network Interface Module

Overview

The ProSoft MVI69-MCM is a Modbus Master/Slave Network Interface Module designed for CompactLogix™ and MicroLogix™ 1500 LRP controllers. This module enables seamless integration between Rockwell Automation® PLCs and Modbus-compatible devices, including Modicon® PLCs and third-party industrial equipment.

The MVI69-MCM supports Modbus RTU and ASCII protocols, making it suitable for SCADA, field device interfacing, and process automation applications. It features a high-speed data transfer rate, optimized polling mechanisms, and flexible floating-point data movement.

Key Features

High-Speed CompactLogix Integration
- Licensed 1769 backplane technology for fast data exchange
- Recognized as an I/O module for direct processor access
- Compatible with CompactLogix and MicroLogix 1500 LRP
Modbus Master & Slave Functionality
- Can be configured as Master or Slave on two independent application ports
- Supports Modbus RTU and ASCII
- Floating-point data movement with support for Enron and Daniel® implementations
Optimized Polling & Error Handling
- Up to 100 Master commands per port
- Intelligent polling reduces delays due to communication issues
- Error codes and diagnostics for troubleshooting
ProSoft Configuration Builder (PCB) Software
- User-friendly drag-and-drop interface
- Supports real-time diagnostics
- Sample configuration and ladder logic files included
Reliable & Durable
- Optical isolation (500V) between module and backplane
- Three-year warranty
- Free lifetime technical support

Technical Specifications

General Specifications

Specification	Details
Brand	ProSoft Technology
Part Number	MVI69-MCM
Backplane Compatibility	1769 CompactLogix/MicroLogix
Power Supply Distance Rating	2 (L43 & L45 installations in first two slots)
Current Load	800 mA max @ 5V DC
Configuration	Sample ladder logic and configuration files included
Supported Controllers	CompactLogix & MicroLogix 1500 LRP (except 1769-L23E-QBFC1B, 1769-L16x, 1769-L18x)

Modbus Master/Slave Communication

Parameter	Details
Baud Rate	110 to 115K baud
Data Bits	7 or 8 bits
Stop Bits	1 or 2
Parity	None, Even, Odd
Modbus Modes	RTU (CRC-16) & ASCII (LRC error checking)
Floating Point Support	Enron, Daniel®, and other formats
Supported Function Codes	Read Coils, Read Input Registers, Write Holding Registers, Diagnostics, Mask Write, etc.
Master Capabilities	Up to 100 commands per port, optimized polling, configurable command execution
Slave Capabilities	Full data interaction, Node ID: 1-247, error codes and status monitoring

Hardware Specifications

Specification	Details
Module Type	Single-slot, 1769 standard
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Humidity	5% to 95% (non-condensing)
LED Indicators	Battery, Module Status, Serial Activity, Configuration Port Activity
CFG Port	RS-232 (RJ45 to DB-9F cable included)
Application Ports (P1, P2)	RS-232/RS-485/RS-422 (jumper selectable)
Isolation	500V Optical Isolation from Backplane
Included Accessories	RJ45 to DB-9M cables, 6-foot RS-232 configuration cable

Applications

SCADA and HMI Integration
- Connects CompactLogix and MicroLogix 1500 to Modbus RTU/ASCII field devices
- Ideal for process automation and industrial control systems
Modbus-Based Device Communication
- Enables communication between Rockwell Automation PLCs and Modicon PLCs
- Supports integration with flow meters, sensors, and control equipment
Process Control & Monitoring
- Real-time data exchange for distributed control systems (DCS)
- Error detection and status monitoring for improved reliability
Remote and Distributed Automation
- Allows remote control and monitoring of industrial equipment
- Compatible with legacy Modbus devices