Description

The F3LX02-2N​ is an FL-net (OPCN-2) interface module manufactured by Yokogawa for the FA-M3 automation platform. It is a communication interface module that installs in an FA-M3 I/O slot and connects the controller to an FL-net (OPCN-2) industrial Ethernet network.The module enables high-speed, vendor-independent data exchange between programmable controllers, robot controllers, CNC machines, and other FA controllers. It supports deterministic cyclic data transmission for continuous I/O refresh and message-based event communication for alarms, production data, and other information exchanges.

Application Scenarios

A Japanese-owned automotive component plant was upgrading a welding and assembly cell that contained a Yokogawa FA-M3 PLC, multiple robot controllers, and CNC machining stations from different manufacturers. The original FA Link H network had connected the Yokogawa controllers effectively, but the plant wanted to integrate third-party equipment and increase data capacity without replacing the entire control architecture.The engineering team installed the F3LX02-2N​ in the FA-M3 main unit and configured it to communicate with the robot and CNC controllers over a switched Ethernet infrastructure. Cyclic transmission was used for real-time status and interlock data, while message transmission handled production-event and recipe information. The RRR technology reduced the time required for transferred data to become visible to the ladder application program. Compared with the earlier FA Link configuration, the plant gained greater data capacity, simpler integration with non-Yokogawa equipment, and a clearer migration path for future automation upgrades. The result was a more responsive production cell with fewer custom gateway interfaces and less application logic dedicated to data-handshake management.

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