Features:
- Two electrically isolated ports supporting RS-422 and RS-485 communication.
- Adjustable serial transmission from 300 bps to 115.2 kbps.
- Flexible shielded twisted-pair wiring with external-side functional grounding.
Serial communication remains important when controllers must exchange data with instruments and automation devices that do not use Ethernet-based interfaces. Yokogawa NFLR121-S00 S1 adds two isolated communication channels to an industrial control configuration. Both RS-422 and RS-485 standards are supported, giving engineers flexibility when integrating compatible equipment. Adjustable communication speed allows the module to match slower legacy devices as well as faster serial networks. Two ports also permit separate communication paths without requiring two individual modules.
Reliable data transmission depends on suitable conductors and careful terminal work. Yokogawa NFLR121-S00 S1 accepts wiring through five-line M4 screw terminal blocks. Shielded twisted-pair cable helps protect communication signals from electrical interference in industrial environments. AWG20 to AWG16 conductors are permitted, while AKB161 and AKB162 provide recommended cable options. Custom cable preparation supports connections to equipment outside the FA-M3 and YEWMAC ranges.
Grounding arrangements can directly affect the stability of an RS-422 or RS-485 network. Yokogawa NFLR121-S00 S1 requires the FG connection and cable shield termination to be completed at the external equipment side. The cable shield must not terminate at the module FG connection. Conduit wiring provides additional routing and physical protection for the communication cable. Compliance with regional grounding standards supports safer installation and more consistent serial communication performance.
The NFLR121-S00 S1 Yokogawa RS-422/RS-485 Communication Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Yokogawa NFLR121-S00 S1 RS-422/RS-485 Communication Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Yokogawa NFLR121-S00 S1 RS-422/RS-485 Communication Module Specs
General
- Manufacturer Yokogawa
- Model NFLR121-S00 S1
- Condition New Original ready stock
- Product Family NFDV561-P00 S2,NFBU200-S10 S1,NFAR181-S00 S2
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Protocol Configuration: Supports flexible software and hardware configuration for Modbus RTU and custom serial protocols.
- Flow Control: Features automatic data flow control technology to eliminate bus collisions.
- Topology Management: Provides master-slave multi-point network management and multi-node polling control mechanisms.
- Collision Detection: Built-in hardware-level frame error and parity check data link control.
- Motor Drive: Connects to the factory's frequency converter (VFD) for real-time speed control and monitoring.
- Power Meters: Integrates a multi-functional power meter to collect data such as grid voltage and current.
- Water Quality Monitoring: Connects to a multi-parameter analyzer to transmit on-site pH and turbidity indicators.
- Intelligent Peripherals: Interlocks with barcode scanners or weighing sensors, and other factory automation hardware.
- Rate Range: Supports wide-range transmission from 1200 bps to 115.2 kbps.
- Transmission Distance: Maximum communication distance up to 1200 meters over standard twisted-pair cable.
- Isolation Protection: Provides electrical isolation up to 1.5 kV to withstand industrial ground potential differences.
- Node Capacity: Up to 32 standard serial field devices can be connected to a single bus loop.