Mitsubishi Electric FX5-ENET MELSEC iQ-F Series Network Module

Description

Delivering expanded Ethernet connectivity to MELSEC iQ-F controllers, the Mitsubishi Electric FX5-ENET functions as a dedicated, high-performance network interface module. This module enables host PLCs to integrate seamlessly into complex plant-wide architectures by providing an independent Ethernet port that supports simultaneous multi-protocol communications. It allows industrial engineers to isolate network traffic by routing local HMI and supervisory SCADA systems through separate physical subnets, preventing data bottlenecks on the CPU's primary port. Designed for reliable data transmission, the module natively processes CC-Link IE Field Network Basic, SLMP (Seamless Message Protocol), and standard socket communication protocol configurations.

Features

• Dual-Subnet Isolation: Enables a second, independent IP routing path to separate machine-level I/O from factory-level networks.
• Multi-Protocol Support: Concurrently processes CC-Link IE Field Basic, SLMP, MC Protocol, FTP client/server, and SNTP time synchronization.
• High-Capacity Data Handling: Supports up to 32 simultaneous connection sockets for complex SCADA and database applications.
• Diagnostic Indicators: Features front-facing LED status indicators for quick visual troubleshooting of link activity, transmission speeds, and system errors.
• Simple Configuration: Direct hardware setup and parameter mapping completed entirely within the GX Works3 engineering software environment.

Applications

• High-density packaging machinery requiring independent HMI and SCADA communication links.
• Automotive assembly cell integration utilizing CC-Link IE Field Network Basic for remote station control.
• Water and wastewater remote telemetry systems using FTP file transfers for daily logging reports.
• Material handling systems interfacing with third-party vision systems and barcode readers via raw TCP/UDP socket communication.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

While the base FX5U CPU contains an onboard RJ45 Ethernet port, the FX5-ENET is specifically applied when network security mandates physically separated subnets or when your project exceeds the base CPU's native connection limits. Note that when mounting the FX5-ENET to an ultra-compact FX5UC CPU, you must install an FX5-CNV-BUS or FX5-CNV-BUSC bus conversion module prior to attaching this network block.

Application Pitfalls & Engineering Notes

When configuring CC-Link IE Field Network Basic, verify that the total cyclic transmission load does not saturate your network bandwidth. Because the FX5-ENET relies on the internal system bus for power, ensure that the total current draw of all connected extension modules does not exceed the remaining capacity of the 24 V DC service power supply integrated within the host CPU module.

Commissioning & Wiring Tips

To prevent high-frequency industrial noise from interrupting communication packets, always use double-shielded category 5e (STP) or higher Ethernet cabling. Ground the shield at the switch side, and confirm that the main PLC base unit is securely grounded to a Class D ground (grounding resistance of 100 ohms or less) via a dedicated, short copper grounding strap.

Installation Guidelines