Introduction
The Yokogawa F3LC11-2N PC Link Module is a reliable communication interface designed for FA-M3 PLC systems, enabling seamless data exchange between programmable controllers and higher-level computing systems such as industrial PCs, SCADA platforms, and engineering workstations.
Built for stable industrial networking, this module uses RS-422/RS-485 communication standards to support long-distance, noise-resistant data transmission. It plays a key role in centralized monitoring, remote control, and system diagnostics within distributed automation architectures.
By providing direct access to PLC memory without requiring complex communication programming, it significantly simplifies system integration and improves operational efficiency.
Technical Specifications
| Parameter | Specification |
|---|
| Model | F3LC11-2N |
| Module Type | PC Link Communication Module |
| Series | FA-M3 |
| Communication Interface | RS-232C / RS-422-A / RS-485 |
| Port Count | 1 communication port |
| Transmission Speed | Up to 115.2 kbps (depending on configuration) |
| Transmission Distance | Up to 1200 m (RS-422/485) |
| Protocol | Yokogawa PC Link protocol |
| Max Connected Nodes | Up to 32 FA-M3 PLC stations |
| Data Access | Full read/write access to PLC devices |
| Remote Functions | RUN/STOP, program upload/download, diagnostics |
| Error Handling | Parity check, checksum validation |
| Isolation | Electrical isolation on communication side |
| 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 × 106.2 mm |
| Weight | Approx. 0.11–0.16 kg |
Industrial Applications
The F3LC11-2N is widely used in automation environments that require stable and centralized PLC communication. Its robust design supports both small and large-scale industrial systems, including:
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SCADA-based centralized monitoring systems
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Factory-wide PLC networking and control
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Remote maintenance and diagnostics systems
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Multi-controller synchronization in production lines
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Industrial data acquisition and logging systems
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Distributed automation in large manufacturing facilities
Its ability to maintain stable communication over long distances makes it suitable for complex industrial layouts.
Key Advantages
One of the main advantages of the F3LC11-2N is its multi-protocol RS-422/RS-485 compatibility, which allows flexible integration into various industrial network topologies.
It supports direct memory access to FA-M3 PLCs, enabling real-time read/write operations without requiring custom communication programming.
The module also enables remote control functions such as RUN/STOP operation and program transfer, reducing the need for physical interaction with the PLC hardware.
In multi-node systems, it can connect up to 32 FA-M3 PLC units in a single network, supporting scalable automation architectures.
Its long-distance transmission capability (up to 1200 meters) ensures reliable communication across large industrial facilities with minimal signal degradation.
Technical FAQs
1. What is the main function of the F3LC11-2N?
It provides communication between FA-M3 PLC systems and external computers or SCADA systems.
2. What communication interfaces does it support?
RS-232C, RS-422-A, and RS-485 interfaces are supported.
3. How many PLC units can it connect?
Up to 32 FA-M3 PLC stations in a network configuration.
4. What is the maximum transmission distance?
Up to 1200 meters using RS-422/RS-485.
5. Does it require special programming?
No, it operates using the built-in PC Link protocol.
6. Can it access PLC memory directly?
Yes, it supports full read/write access to PLC devices.
7. Does it support remote operation?
Yes, including RUN/STOP control and program upload/download.
8. Is the module isolated?
Yes, it includes electrical isolation for communication stability.
9. What is the communication speed?
Up to 115.2 kbps depending on configuration.
10. What systems is it compatible with?
It is designed for Yokogawa FA-M3 PLC systems and SCADA/PC integration.
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