Yokogawa F3LC21-1N PLC Interface Module for RS-232 Communication
The Yokogawa F3LC21-1N Personal Computer Link Module delivers industrial-grade communication capabilities with its EIA RS-232-C interface standard. Designed for seamless integration in automation systems, this module features:
- Interface Standard: EIA RS-232-C
- Transmission Mode: Half-duplex
- Current Consumption: 100 mA
- Compact Design: 110g lightweight profile
Engineered for harsh industrial environments, the F3LC21-1N ensures reliable data exchange across Yokogawa PLC systems. Its half-duplex transmission protocol minimizes signal interference while maintaining compatibility with legacy industrial equipment. The module’s compact form factor enables flexible installation without compromising rack space.


Stoker Automation Technology provides comprehensive support for this module, including 2-year warranty coverage and lifetime technical consultation. Our 5000m² warehouse maintains ready stock of Yokogawa components, with same-day shipping for critical replacements. Contact us via WhatsApp for immediate sourcing assistance.
About Stoker Automation Technology: With 20+ years serving industrial sectors including oil/gas, power generation, and manufacturing, we maintain one of Asia’s largest inventories of automation components. Our specialists provide lifecycle support from system design to legacy equipment maintenance, ensuring minimal downtime for your operations.
Can’t locate your required model? Email our technical team: abbdcs36@gmail.com









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