Configured for serial data exchange in FA-M3 control networks, the YOKOGAWA F3LC11-2F (F3LC11 PC Link Module) provides direct physical/electrical execution of protocol-based communication between controllers and external host devices.

Hardware Specifications

Backplane Bus Communication and Deterministic Networks

The F3LC11-2F utilizes a proprietary FA-M3 serial protocol to facilitate deterministic data exchange across the module backplane. This interface is engineered for I/O density scaling, allowing the controller to manage communication buffers without degrading scan-time performance. The module supports firmware flash compatibility to accommodate protocol updates and configuration adjustments, ensuring that the serial communication link maintains high-throughput integrity even when scaled to the maximum limit of 32 connected network nodes.

Frequently Asked Questions

Q: Can the RS-485 interface be configured for multi-drop communication?

A: Yes, the F3LC11-2F supports multi-drop configurations using the RS-422A/485 interface. Up to 32 FA-M3 units can be daisy-chained, provided that the physical layer is properly biased and terminated at both extremities of the bus.

Q: Is the communication protocol accessible to third-party SCADA software?

A: Yes, the module uses standard ASCII-based communication sequences. Third-party host devices can interface with the module by mapping register addresses according to the FA-M3 PC Link protocol memory map.

Field Installation Guidelines

1. Power down the FA-M3 base unit before inserting the module to prevent electrical shorts on the backplane bus.
2. Secure the module using the built-in locking mechanism to ensure stable contact with the backplane connectors.
3. Use shielded, twisted-pair cabling for RS-422A/485 connections; ensure the shield drain wire is connected to a high-quality chassis ground to prevent common-mode noise.
4. Configure communication parameters (baud rate, parity, and station address) using the utility software prior to full network integration.
5. Verify that the communication LEDs (TX/RX) blink during data transmission to confirm active link state and protocol handshake completion.