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NFLR121-S51

The Yokogawa NFLR121-S51 is a high-performance communication module designed for industrial automation systems, particularly within Yokogawa's CENTUM and ProSafe-RS series. This module facilitates reliable data exchange between field devices and control systems, ensuring seamless integration and communication.

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Key Specifications

Model: NFLR121-S51

Communication Interface: RS-422/RS-485 (2 ports)

Connection Method: Multipoint

Communication Mode: Half-duplex/Full-duplex

Synchronization: Start-stop synchronization

Communication Speed: 0.3, 1.2, 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4, 57.6, 76.8, 115.2 kbps

Transmission Code: ASCII/Binary

Character Length: 7/8 bits

Stop Bits: 1/2 bits

Parity Check: None/Even/Odd

LED Indicators:

STATUS: Green – Hardware normal

ACT: Green – Input/output actions

RCV (1/2): Green – Reception in progress

SND (1/2): Green – Transmission in progress

Terminal Block: M4 Screws

Dimensions: 142.9 mm × 125.5 mm × 130 mm

Weight: Approximately 0.34 kg

Operating Temperature: -40°C to +85°C

Power Consumption: Maximum 0.7 A

Compliance: PROFIBUS-DP standards (IEC61158-2 type3)

✅ Key Features

Dual Communication Ports: Equipped with two RS-422/RS-485 ports for flexible and redundant communication setups.

Wide Communication Speed Range: Supports a broad range of communication speeds from 0.3 kbps to 115.2 kbps, accommodating various application requirements.

Flexible Data Transmission: Allows both ASCII and binary transmission codes, providing versatility in data exchange formats.

Configurable Parity and Stop Bits: Offers adjustable character length, stop bits, and parity check settings to match specific system protocols.

Robust Environmental Tolerance: Designed to operate effectively in harsh industrial environments with a wide operating temperature range and high resistance to temperature and humidity variations.