YOKOGAWA F3LC21-1N PLC Link Module for Industrial Automation

The Yokogawa F3LC21-1N is a specialized PLC link module designed for seamless communication between personal computers and programmable logic controllers in industrial automation environments. It ensures reliable data exchange, enhancing operational efficiency.

YOKOGAWA F3LC21-1N PLC Link Module

The YOKOGAWA F3LC21-1N PLC Link Module enables seamless communication between PLC systems and computers in industrial automation environments. Complying with EIA RS-232-C standards and featuring half-duplex transmission, this module ensures reliable data exchange for critical process control, manufacturing automation, and machinery monitoring applications.

Technical Specifications

Brand Yokogawa
Product Type PLC Link Module
Interface Standard EIA RS-232-C
Transmission Mode Half-duplex
Port Configuration 1 Port
Current Consumption 100 mA
Weight 110 g


YOKOGAWA F3LC21-1N Front View
YOKOGAWA F3LC21-1N Side View
YOKOGAWA F3LC21-1N Installation

Applications & Compatibility

This module integrates with Yokogawa FA-M3 and FA-M3V series PLC systems, enabling real-time data monitoring in:

  • Process control systems in chemical plants
  • Manufacturing line automation
  • Equipment diagnostics and maintenance
  • SCADA network expansions

Commonly paired with Yokogawa F3SP04-1S, F3SP08-1S, and F3SP16-1S I/O modules for complete automation solutions.

Vertex Industrial Services

Vertex Industrial sources and supplies industrial automation hardware from leading brands including Yokogawa, Siemens, Rockwell, and Honeywell. We specialize in:

  • Pre-sales technical consultation by certified engineers
  • 1-year comprehensive warranty on all products
  • Global logistics from our warehouse network
  • Sourcing rare or discontinued components

For pricing details or to discuss custom requirements: Contact us via WhatsApp

Can’t find your model? Email anikaqx@gmail.com for specialized sourcing.




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