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Moxa MGate-5103 Industrial Protocol Gateway for Modbus/EtherNet/IP to PROFINET Conversion

Delivery Time: 0-3 days

Brand Moxa

Model Number MGate-5103

UPC N/A

Manufacture Warranty

EpicRise Warranty 1 Year

Product Highlights

• Protocol conversion between Modbus RTU/ASCII/TCP, EtherNet/IP, and PROFINET IO Device for seamless integration of legacy devices

• Web-based wizard with illustrated quick setup guide and GSDML export function reduces configuration time and deployment complexity

• Embedded traffic monitoring and diagnostic tools with system logging enable rapid troubleshooting during installation and operation

• Redundant dual DC power inputs (12-48 VDC) and relay output with microSD backup ensure continuous operation in critical applications

• IEC 62443-based security with HTTPS, SSH, and AES-256 encryption protects industrial networks from cyber threats

Overview
Specifications
FAQ
User Guides
Reviews

The Moxa MGate-5103 is an industrial Ethernet gateway designed to integrate legacy Modbus and EtherNet/IP devices into PROFINET-based automation networks. As manufacturing facilities modernize their control systems while retaining existing field devices, this gateway eliminates the need for costly equipment replacement by enabling seamless protocol conversion. The MGate-5103 stores the latest exchanged data and converts Modbus or EtherNet/IP packets to PROFINET format, allowing PROFINET IO controllers to monitor and control connected devices in real time.

Built for industrial environments with operating temperatures from 0 to 60°C (with -40 to 75°C models available), the gateway features 2 kV isolated serial ports, dual redundant DC power inputs, and comprehensive diagnostic capabilities. The web-based configuration wizard with illustrated quick setup guide simplifies deployment, while GSDML file export reduces PLC configuration time. With embedded traffic monitoring, system logging, and status monitoring features, maintenance teams can quickly identify communication issues and device failures.

Certified for hazardous locations (ATEX, Class I Division 2, IECEx) and equipped with IEC 62443-based security features including HTTPS and SSH encryption, the MGate-5103 delivers enterprise-grade reliability with an MTBF of 1,140,815 hours and a 5-year warranty.

Best For

The MGate-5103 is ideal for industrial facilities integrating legacy automation equipment into modern PROFINET control systems across multiple sectors:

- Manufacturing plant modernization: Connect existing Modbus RTU/ASCII devices to new PROFINET PLCs without replacing functional field equipment, reducing capital expenditure during automation upgrades

- Process industry integration: Enable PROFINET SCADA systems to monitor and control EtherNet/IP sensors and actuators in oil & gas, chemical, and water treatment facilities

- Multi-vendor automation environments: Bridge communication between Siemens PROFINET controllers and Allen-Bradley or other non-PROFINET devices in hybrid automation architectures

- Remote monitoring applications: Deploy in distributed control systems where PROFINET networks need access to serial Modbus devices located across large facilities or multiple buildings

- Hazardous location installations: Operate in Class I Division 2, ATEX, and IECEx certified environments with redundant power and relay outputs for critical safety applications

Key Features

- Supports Modbus RTU/ASCII/TCP master/client and slave/server modes plus EtherNet/IP adapter with up to 128 Modbus commands and 32 server connections

- PROFINET IO Device functionality connects to 1 IO controller for read/write operations with GSDML file export for streamlined PLC configuration

- Embedded Modbus traffic monitor displays protocol communications in real time, accelerating troubleshooting during installation and commissioning phases

- System logging with remote web console access records all events and device status changes for compliance documentation and root cause analysis

- Status monitoring automatically notifies PROFINET controllers when Modbus devices disconnect or fail to respond, enabling proactive maintenance alerts

- MicroSD card slot enables configuration backup and replication across multiple gateways plus event log storage for long-term data retention

- Dual redundant 12-48 VDC power inputs with 1 relay output and built-in buzzer ensure continuous operation with audible fault alerts

- 2 kV isolated RS-232/422/485 serial port with ADDC automatic data direction control supports baud rates from 50 bps to 921.6 kbps

- Two 10/100BaseT Ethernet ports with built-in cascade function and 1.5 kV magnetic isolation simplify daisy-chain network topology

- IEC 62443 security compliance with HTTPS (TLS 1.3), SSH, SNMPv3, and AES-256 encryption protects against unauthorized access and data interception

- DIN-rail and wall-mount installation options with IP30 enclosure rated for 0-60°C operation (extended -40 to 75°C model available)

- ATEX, Class I Division 2, and IECEx certifications qualify the gateway for installation in hazardous locations with explosive atmospheres

Quick Specs

Specification	Details
Protocol Support	PROFINET IO Device, Modbus RTU/ASCII/TCP (Master/Slave), EtherNet/IP Adapter
Ethernet Ports	2 x 10/100BaseT(X) RJ45, Auto MDI/MDI-X, 1.5 kV isolation
Serial Interface	1 x DB9 male RS-232/422/485, 2 kV isolation, 50 bps to 921.6 kbps
Modbus Capacity	128 commands, 16 client connections, 32 server connections
PROFINET Connections	1 IO Controller (read/write)
Power Input	12-48 VDC (redundant dual inputs), 455 mA @ 12 VDC
Configuration	Web console (HTTP/HTTPS), Device Search Utility, Telnet, GSDML export
Diagnostics	Embedded traffic monitor, system logging, status monitoring, relay output
Security	HTTPS (TLS 1.3), SSH, SNMPv3, AES-128/256, SHA-256, IEC 62443 compliant
Operating Temp	MGate-5103: 0 to 60°C \| MGate-5103-T: -40 to 75°C
Humidity	5-95% RH (non-condensing)
Certifications	UL 508, EN 60950-1, ATEX, Class I Division 2, IECEx, EN 55032/24, FCC Part 15B Class B
Protection	IP30, 2 kV serial isolation, ESD 8 kV contact/15 kV air, Surge 2 kV
Mounting	DIN-rail, wall-mount
Dimensions	36 x 105 x 140 mm (1.42 x 4.13 x 5.51 in)
MTBF	1,140,815 hours (Telcordia SR332)
Warranty	5 years

What's Included

- 1 x MGate-5103 Series Gateway

- 1 x RJ45 to DB9 Console Cable

- 1 x DIN Rail Kit

Product Details
Color	Black
Power Source	DC-powered

What industrial environments and automation architectures is the MGate-5103 best suited for?

The MGate-5103 is designed for manufacturing plants, process industries, and distributed control systems that need to integrate existing Modbus RTU/ASCII/TCP or EtherNet/IP devices into PROFINET networks. It operates reliably in industrial temperatures from 0 to 60°C (extended models support -40 to 75°C) and is certified for hazardous locations including ATEX, Class I Division 2, and IECEx environments. The gateway is particularly valuable in plant modernization projects where replacing functional legacy equipment is cost-prohibitive.

How does the MGate-5103 compare to other protocol gateways in the Moxa MGate series?

The MGate-5103 specifically targets PROFINET integration, converting Modbus and EtherNet/IP protocols to PROFINET IO Device format for Siemens and other PROFINET controller ecosystems. Unlike Moxa gateways focused on Modbus-to-Ethernet or serial-to-Ethernet conversion, this model includes PROFINET IO Device support with GSDML export and connects to one PROFINET IO controller. The dual redundant power inputs, relay output, and IEC 62443 security features position it for mission-critical industrial applications requiring high availability.

Is the MGate-5103 a cost-effective investment compared to replacing legacy Modbus devices with native PROFINET equipment?

The MGate-5103 eliminates the capital expense of replacing functional Modbus and EtherNet/IP field devices during PROFINET control system upgrades. With support for up to 128 Modbus commands and 32 server connections through a single gateway, organizations can integrate multiple legacy devices at a fraction of the cost of new PROFINET-native equipment. The 5-year warranty and 1,140,815-hour MTBF provide long-term reliability, while the microSD configuration backup feature allows rapid deployment across multiple sites without reconfiguration labor.

Which PROFINET controllers, Modbus devices, and power systems is the MGate-5103 compatible with?

The MGate-5103 functions as a PROFINET IO Device compatible with any PROFINET IO controller (typically Siemens S7-1200/1500 PLCs or similar). It supports Modbus RTU, ASCII, and TCP protocols as both master/client and slave/server, enabling connection to virtually any Modbus-compliant device. The gateway also operates as an EtherNet/IP adapter for integration with Allen-Bradley and Rockwell Automation ecosystems. Power compatibility spans 12-48 VDC with redundant dual inputs, accommodating standard industrial power supplies.

What is the maximum number of Modbus devices and PROFINET controllers the MGate-5103 can connect simultaneously?

The MGate-5103 supports up to 128 Modbus commands, 16 Modbus client connections, and 32 Modbus server connections through its single serial port and dual Ethernet ports. For PROFINET connectivity, the gateway connects to 1 PROFINET IO controller for read/write operations. The EtherNet/IP adapter function operates concurrently with Modbus and PROFINET protocols, enabling multi-protocol data exchange in hybrid automation environments.

How do I configure the MGate-5103 and export settings for use with my PROFINET PLC?

Configuration is performed through the web-based console accessible via HTTPS using the default IP address 192.168.127.254 (default login: admin/moxa). The illustrated quick setup wizard guides users through protocol conversion mode selection and parameter configuration in a few steps. Once configured, the GSDML export function generates a file that imports directly into PROFINET PLCs, automatically populating I/O module definitions and reducing PLC programming time. Configuration backup to microSD card enables replication across multiple gateways.

What diagnostic tools does the MGate-5103 provide for troubleshooting Modbus and PROFINET communication issues?

The gateway includes an embedded Modbus RTU/ASCII/TCP traffic monitor that displays real-time protocol communications through the web console, enabling rapid identification of communication errors during installation. System logging records all events with timestamps (via built-in RTC) and can be accessed remotely through the web interface. Status monitoring automatically notifies the PROFINET controller when connected Modbus devices disconnect or become unresponsive, triggering alarms at the PLC/SCADA level for proactive maintenance.

Does the MGate-5103 support redundant configurations for high-availability applications?

The MGate-5103 features dual redundant DC power inputs (12-48 VDC) that automatically switch to the secondary supply if the primary fails, ensuring continuous operation. The gateway includes 1 relay output for external alarm notification during power or communication failures, plus a built-in buzzer for local audible alerts. Configuration and event logs can be stored on the microSD card for recovery after power cycling. The 1,140,815-hour MTBF and IP30 enclosure with 2 kV serial isolation provide additional reliability in harsh industrial environments.