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
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Dual-Subnet Isolation: Enables a second, independent IP routing path to separate machine-level I/O from factory-level networks.
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Multi-Protocol Support: Concurrently processes CC-Link IE Field Basic, SLMP, MC Protocol, FTP client/server, and SNTP time synchronization.
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High-Capacity Data Handling: Supports up to 32 simultaneous connection sockets for complex SCADA and database applications.
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Diagnostic Indicators: Features front-facing LED status indicators for quick visual troubleshooting of link activity, transmission speeds, and system errors.
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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
| Parameter |
Specification Value |
| Manufacturer |
Mitsubishi Electric |
| Model Number |
FX5-ENET |
| Product Series |
MELSEC iQ-F Series |
| Module Type |
Ethernet Network Module |
| Data Transmission Rate |
100 Mbps / 10 Mbps (Auto-negotiation) |
| Communication Mode |
Full-Duplex / Half-Duplex |
| Interface Type |
RJ45 connector (1 port) |
| Maximum Cable Length |
100 meters (segment length) |
| Maximum Connections |
32 connections (total destination nodes) |
| Internal Power Consumption |
110 mA at 24 V DC (supplied from system bus) |
| Compatible Controllers |
FX5U CPU, FX5UC CPU (requires bus conversion module) |
| Ambient Operating Temperature |
0 to 55 degC |
| Country of Origin |
Japan |
| Shipping Weight (Calculated) |
0.35 kg |
| Package Dimensions (Calculated) |
12.5 cm x 11.0 cm x 6.5 cm |
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
CRITICAL WARNING:
Always disconnect and isolate all external AC and DC power supplies feeding the PLC rack before mounting, demounting, or wiring the FX5-ENET module. Failure to de-energize the entire system may result in permanent electronic component degradation, processor fault-states, or unexpected machinery startup.
1
Ensure the CPU module and all extension blocks are mounted on a clean, vibration-free, standard 35 mm DIN rail inside an IP54-rated metal enclosure.
2
Slide the FX5-ENET system bus connector firmly into the extension port of the preceding module until the locking tabs click fully into place.
3
Insert the RJ45 industrial Ethernet cable connector into the port located on the lower-front section of the module until it is securely latched.
4
Apply system power, open your GX Works3 configuration workspace, detect the newly attached module via the Module Configuration window, and write your network parameters directly to the CPU.