Configured for high-speed serial data exchange in FA-M3 control systems, the YOKOGAWA F3LC11-2N (F3LC11-2N PC Link Communication Module) provides direct physical/electrical execution. This module facilitates bidirectional communication between the PLC backplane and external devices including HMIs and supervisory stations via integrated RS-232-C and RS-422-A/485 physical layer interfaces.

Suffix Breakdown & Model Matrix

The F3LC11-2N is defined as a fixed-function hardware module. No variable suffix breakdown or modular matrix logic is applicable to this specific cataloged unit.

Hardware Specifications

PLC Control and Deterministic Network Connectivity

The module manages the backplane bus communication velocity by autonomously mapping PLC memory and device registers to external serial request frames. This hardware-level integration allows deterministic data polling without the requirement for custom transmission firmware or complex protocol execution routines. The interface architecture ensures that firmware flash compatibility is maintained across existing FA-M3 backplane revisions, supporting real-time remote RUN/STOP commands and diagnostic log retrieval.

Frequently Asked Questions

Q: Does the F3LC11-2N require custom ladder logic programming to establish communication?

A: No, the module utilizes predefined PC Link protocols for direct access to PLC device registers, eliminating the need for custom transmission program development.

Q: Is it possible to daisy-chain the F3LC11-2N for multi-node communication?

A: Yes, up to 32 FA-M3 PLCs can be interconnected using the RS-422-A/485 interface, provided that termination resistors are installed at both ends of the transmission line to prevent signal reflection.

Field Installation Guidelines

• Ensure the FA-M3 backplane is de-energized before mounting the module to prevent electrical damage to the communication bus connectors.
• Secure the module using the built-in locking mechanism to ensure stable physical connection and vibration resistance.
• For RS-422/485 configurations, ensure the signal ground is connected properly to minimize potential differences between networked devices.
• Use shielded, twisted-pair cables for long-distance serial runs to mitigate electromagnetic interference and ensure data integrity.
• Verify that the baud rate and transmission settings match the external host device configuration through the designated physical configuration switches before applying system power.