Product Description of ProSoft MVI69-103M
May 16, 2026

Product Description of ProSoft MVI69-103M

MVI69-103M is a IEC 60870-5-103 master station (Master) communication module specially designed by ProSoft for the Rockwell CompactLogix / MicroLogix 1500 platform. It is used to connect CompactLogix PLC as a 103 master station, integrating with power industry relay protection, measurement and control equipment (such as microcomputer protection, circuit breakers, instruments), to achieve data collection and control for substation automation and power grid monitoring systems. It is a standard solution for the integration of power automation and Rockwell small PLCs. ProSoft Technology Inc.

Description

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Product Description of ProSoft MVI69-103M

MVI69-103M is an IEC 60870-5-103 master station (Master) communication module specially designed by ProSoft for the Rockwell CompactLogix / MicroLogix 1500 platform. It is used to connect CompactLogix PLC as a 103 master station, integrating with power industry relay protection, measurement and control equipment (such as microcomputer protection, circuit breakers, instruments), to achieve data collection and control for substation automation and power grid monitoring systems. It is a standard solution for integrating power automation with Rockwell small PLCs. ProSoft Technology Inc. 

I. Model Analysis

MVI69: Communication Module for CompactLogix / MicroLogix 1769 Platform

103: IEC 60870-5-103 Power Protocol (Communication for Relay Protection Devices)

M: Master (Central Station) Working Mode

II. Core Hardware Specifications

Compatible Platforms: Rockwell CompactLogix (L20/L30/L35/L43/L45), MicroLogix 1500 LRP

Slot Occupancy: Single Slot (Standard 1769 Size)

Backplane Power Consumption: 800mA @ 5.1VDC, 3mA @ 24VDC (ProSoft Technology Inc)

Communication Interfaces: 2× Independent Serial Ports (PORT 1/PORT 2)

Electrical Standards: RS-232/RS-422/RS-485 (Software Configurable)

Isolation: 2.5kV Photocoupler Isolation

Connectors: DB9 Pin (with RJ45 Adapter) (ProSoft Technology Inc)

Configuration Ports: RJ45 (RS-232), for PC Configuration / Debugging

Data Buffer:

Input Data Area: Maximum 4000 Bytes

Output Data Area: Maximum 4000 Bytes

Status Indicators: OK, APP, ERR, PORT1, PORT2, CFG, Six Groups of LED Indicators

Operating Temperature: 0°C ~ +60°C

Storage Temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% (No Condensation)

Anti-interference: Vibration 5g (10~1500Hz), Shock 30g (Running) / 50g (Non-Running) (ProSoft Technology Inc)

Certifications: CE, UL, cURus, RoHS, ATEX (ProSoft Technology Inc)

III. Communication Performance Parameters

1. Protocols and Modes

Main Protocol: IEC 60870-5-103 (Power Relay Protection Protocol) (ProSoft Technology Inc)

Working Mode: 103 Master Station (ProSoft Technology Inc)

Communication Rate: 1.2kbps ~ 115.2kbps (Configurable) (ProSoft Technology Inc)

Link Layer: FT1.2 Asynchronous Byte Transmission (103 Standard) (ProSoft Technology Inc)

Check Method: Even Check, Odd Check, No Check (Configurable) (ProSoft Technology Inc)

2. Dual Serial Port Master Station Capability

Dual Ports Independent: PORT1/PORT2 can be independently configured as 103 Master Station, dual networks parallel (ProSoft Technology Inc)

Maximum Slave Stations: Single Port Up to 16 Slave Stations, Dual Ports Up to 32 Devices (ProSoft Technology Inc)

Data Objects: Support Telemetry, Remote Signal, Remote Control, Remote Pulse, Protection Event, Fault Recording (ProSoft Technology Inc)

Transmission Mechanism: Periodic Scanning + Event Uploading + Command Issuance (Three Modes) (ProSoft Technology Inc)

Diagnostic Function: Slave Station Status, Link Quality, Message Error, Channel Diagnosis (ProSoft Technology Inc)

3. Advanced Features

Independent Processor: 32-bit ARM, Does Not Occupy PLC Scan Cycle (ProSoft Technology Inc)

Hot Swap: Supports CompactLogix Rack Online Replacement (ProSoft Technology Inc)

Configuration Storage: Built-in Flash, Configuration Files Saved Even When Power Off (ProSoft Technology Inc) Data Mapping: 103 Data Object → Automatic Mapping of Logix Controller Label

Compatible 103 Slave Stations: Supports protection devices from NARI, XJ, Sifang, Siemens, ABB, etc.

IV. Core Features and Advantages

1. Power 103 Master Station Full Compatibility (Core Advantage)

Strictly follows IEC 60870-5-103 standard, 100% compatible with mainstream power protection devices

Dual independent master station serial ports: Single module builds dual 103 networks, saving slots and reducing costs

Complete 103 Function Set: Supports all standard ASDUs, time synchronization, file transfer, provided by ProSoft Technology Inc

2. Efficient Power Data Interaction

Maximum 32 Slave Stations: Satisfies access of small-sized substations and distribution rooms equipment

Event priority transmission: Protection actions, fault information sent within milliseconds ProSoft Technology Inc

Large data buffer: 4000 bytes input/output, compatible with multiple devices and full point table access ProSoft Technology Inc

3. Seamless CompactLogix Integration

Single slot, backplane power supply, no additional power / gateway required

Provides Studio 5000 AOI, ladder diagram routines, configuration tools

Data transparent mapping, power point table → PLC label one-click correspondence

5. Industrial-grade Reliability and Maintenance

Optical isolation, wide temperature range, high shock resistance, stable in strong electromagnetic environment ProSoft Technology Inc

Dual independent LED + error code reporting, quick fault location

Support firmware upgrade, configuration backup / restoration, remote diagnosis ProSoft Technology Inc

VI. Typical Application Scenarios

Substation Automation: CompactLogix as 103 Master Station, connects microcomputer protection devices

Distribution Room Monitoring: Circuit breakers, comprehensive protection, instruments 103 connected to small PLC system

Grid Fault Recording: Fault data collection from protection devices, sending to SCADA system ProSoft Technology Inc

New Energy Power Station: Wind power / photovoltaic box transformer protection, measurement and control equipment 103 communication ProSoft Technology Inc

Old Power Transformation Renovation: New CompactLogix system compatible with existing 103 protection network

Industrial Power Supply System: Metallurgy, chemical industry, mining high-voltage power protection data acquisition

VII. Summary

MVI69-103M is a dedicated solution for CompactLogix / MicroLogix platform IEC 60870-5-103 master station communication. With dual independent 103 master stations, 32 slave station access, complete power protocol compatibility, optical isolation high reliability, seamless PLC integration, industrial-grade stability as core advantages, designed specifically for Rockwell small PLC access to power relay protection network, it is a cost-effective single-slot module for power automation, substations, distribution rooms, new energy power stations.


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