Description

Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | F3LX02-2N |
| Manufacturer | Yokogawa |
| Product Type | FL-net (OPCN-2) Interface Module |
| Series | FA-M3 |
| Protocol Standard | FL-net (OPCN-2) Ver. 2.00 |
| Network Interface | 10BASE-T / 100BASE-TX (RJ-45) |
| Transmission Speed | 10 Mbps / 100 Mbps |
| Access Control | CSMA/CD (IEEE 802.3 compliant) |
| Transmission Protocol | UDP/IP, FA Link Protocol, ICMP, ARP |
| Maximum Nodes | 254 (one module = one node) |
| Maximum Modules per CPU | 6 (not installable in sub-units) |
| Cyclic Transmission Area 1 | 512 words (link relays) |
| Cyclic Transmission Area 2 | 8192 words (link registers) |
| Message Transmission | Maximum 1024 bytes |
| Current Consumption | 330 mA max. |
| External Dimensions | 28.9 (W) × 100 (H) × 83.2 (D) mm |
| Weight | 100 g |
Main Features and Advantages
Multi-Vendor Interoperability: The Yokogawa F3LX02-2N enables the FA-M3 PLC to communicate with controllers from other manufacturers on the same network. FL-net (OPCN-2) was standardized by the JOP working group of Japan’s Manufacturing Science and Technology Center specifically to facilitate data exchange between PLCs, robot controllers, and CNC machines regardless of vendor . This makes the Yokogawa F3LX02-2N particularly valuable in mixed-vendor production environments where equipment from different suppliers must operate as an integrated system.
High-Speed Data Transfer with RRR Technology: The Yokogawa F3LX02-2N incorporates Yokogawa’s proprietary RRR (Rapid Refresh and Reflection) technology, which optimizes both intra-module data processing and communication between the interface module and the CPU. This results in significantly shorter data delivery times compared to conventional high-speed PLC networks . For applications requiring tight synchronization between multiple controllers, such as coordinated motion or interlocked safety sequences, this speed advantage translates directly into improved system responsiveness.
Flexible Configuration and Scalability: Up to six Yokogawa F3LX02-2N modules can be installed in a single FA-M3 main unit, and the number of link points (up to 8192 per module) can be configured independently for each module . This flexibility allows system designers to partition network traffic logically, creating separate data links for different functional areas or hierarchical control levels. The module’s Ethernet-based design also simplifies network expansion, as standard Ethernet hubs, switches, and cables can be used .
Masterless Network Architecture: FL-net operates without a master node, meaning any node can join or leave the network without disrupting communication between remaining nodes. The Yokogawa F3LX02-2N benefits from this architecture, as it allows modules to be added or removed for maintenance without affecting the rest of the system .





