Introduction
The Yokogawa F3LC11-2F Personal Computer Link Module is a high-reliability communication interface designed for FA-M3 PLC systems, enabling seamless data exchange between programmable controllers and higher-level computer systems such as industrial PCs, SCADA platforms, and HMI stations.
Built on RS-422/RS-485 communication standards, this module is engineered for long-distance, noise-resistant industrial networking. It supports real-time monitoring, program transfer, and remote control functions, making it a key component in integrated automation architectures where stable communication is essential.
Technical Specifications
| Parameter | Specification |
|---|
| Model | F3LC11-2F |
| Module Type | Personal Computer Link Module |
| Series | FA-M3 |
| Communication Interface | RS-422-A / RS-485 |
| Port Count | 1 port (isolated) |
| Transmission Method | Half-duplex |
| Synchronization | Asynchronous (start-stop) |
| Max Transmission Speed | Up to 115.2 kbps |
| Transmission Distance | Up to 1200 m |
| Cable Type | Shielded twisted-pair cable (AWG20–16) |
| Termination Resistance | 220 Ω (built-in switch selectable) |
| Protocol | Dedicated FA-M3 PC Link protocol |
| Data Format | 7/8-bit data, parity selectable, 1/2 stop bits |
| Error Detection | Parity check, checksum |
| Power Consumption | Approx. 350 mA |
| Mounting | FA-M3 base unit slot |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -20°C to 75°C |
| Humidity | 10–90% RH (non-condensing) |
| Dimensions (W × H × D) | 28.9 × 100 × 83.2 mm |
| Weight | Approx. 0.12 kg |
Functional Applications
The F3LC11-2F is widely used in industrial automation systems that require robust communication between PLCs and supervisory systems. Its long-distance RS-485 capability makes it suitable for distributed control environments.
Common applications include:
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SCADA system integration and monitoring
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Factory-wide PLC networking
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Remote program upload/download operations
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Centralized production control systems
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Multi-controller synchronized automation
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Industrial data acquisition systems
Its ability to operate reliably in electrically noisy environments makes it ideal for heavy industrial settings.
Key Advantages
One of the major strengths of the F3LC11-2F is its long-distance communication capability (up to 1200 meters), allowing PLC systems to be deployed across large industrial facilities without signal degradation.
The module supports up to 32 FA-M3 stations in a single network configuration, enabling scalable multi-node architectures for complex automation systems.
Its built-in isolation and termination resistance improve signal stability and reduce communication errors in electrically harsh environments.
Additionally, it enables remote RUN/STOP control, program transfer, and device-level monitoring, eliminating the need for physical intervention at the PLC rack.
A key operational advantage is that it does not require custom communication programming, significantly simplifying system integration and deployment.
Technical FAQs
1. What is the main function of the F3LC11-2F?
It enables communication between FA-M3 PLC systems and external computers or SCADA systems.
2. What communication standard does it use?
It uses RS-422-A and RS-485 standards.
3. What is the maximum communication distance?
Up to 1200 meters using shielded twisted-pair cable.
4. How many devices can be connected?
Up to 32 FA-M3 units in a network configuration.
5. Does it support remote PLC control?
Yes, it supports remote RUN/STOP and program operations.
6. What is the maximum transmission speed?
Up to 115.2 kbps.
7. Is the module electrically isolated?
Yes, it includes signal isolation for improved noise resistance.
8. Does it require special communication software?
No, it operates using a built-in FA-M3 communication protocol.
9. Can it read PLC device data in real time?
Yes, it supports real-time reading and writing of all FA-M3 devices.
10. What type of environments is it suitable for?
It is designed for industrial environments with high electrical noise and long-distance wiring needs.
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