Overview

The Yokogawa NFLR121-S00 is a serial communication module engineered to provide robust and flexible connectivity for distributed control systems (DCS). Equipped with two independent ports supporting RS-422 and RS-485 protocols, it enables high-speed communication in both full-duplex and half-duplex modes with sensors, actuators, and third-party controllers.

Designed for harsh industrial environments, the module offers strong electromagnetic interference (EMI) resistance, ensuring reliable data transmission even under heavy network load. Its compact form factor and compatibility with Yokogawa’s STARDOM FCN autonomous controllers make it ideal for scalable and modular automation architectures.

Whether deployed in process control, factory automation, or remote monitoring systems, the NFLR121-S00 enhances system interoperability and communication reliability.

Technical Data

Typical Applications

• Process Automation: Connects controllers to flow meters, pressure sensors, and other serial devices.

• Factory Automation: Interfaces with barcode readers, PLCs, and motor drives in production lines.

• Remote Monitoring Systems: Enables data exchange with telemetry units and environmental sensors.

• OEM Integration: Used in custom control panels requiring serial communication.

• Energy and Utilities: Facilitates communication with smart meters and grid control equipment.

Example: In a water treatment plant, the NFLR121-S00 links a controller to multiple flow sensors via RS-485, ensuring accurate monitoring and control across distributed assets. It plays a vital role in maintaining operational efficiency and data integrity.

FAQ

Q: What communication protocols does the NFLR121-S00 support?
A: RS-422 and RS-485 in both full-duplex and half-duplex modes.

Q: Is it compatible with Yokogawa’s STARDOM platform?
A: Yes, it integrates directly with FCN autonomous controllers.

Q: What is the maximum baud rate supported?
A: Up to 115.2 kbps.

Q: Can it operate in noisy industrial environments?
A: Yes, it is designed for high EMI resistance and stable operation under load.

Q: What devices can it connect to?
A: Sensors, actuators, third-party controllers, and other serial communication devices.