Network Field Switch Module NFSB100-S50/SBT01 | Yokogawa PLC

Product Description

Overview

The Yokogawa NFSB100-S50/SBT01 is a versatile SB Bus Repeat and Network Field Switch Module designed for CENTUM VP and STARDOM systems. It enhances serial and Ethernet communication between Field Control Nodes (FCNs), Field I/O modules, and higher-level networks. Supporting high-speed SB bus (128 Mbps) and redundant Ethernet communication, it ensures reliable data exchange in mission-critical automation environments. The module is compact, robust, and scalable, suitable for both single and duplexed bus configurations.

Technical Specifications

SB Bus Communication

• Model: NFSB100

• Transmission Method: Serial SB bus

• Baud Rate: 128 Mbps

• Maximum Transmission Distance: 8 m per line

• Extension Units: Supports up to 2 additional units (3 including control unit)

• Duplex Configuration: Supported

• Power Supply: 5 V DC ±5%

• Maximum Current Dissipation: 500 mA

• Slot Installation: Slot No. 10 for single SB bus; Slots 9 and 10 for duplexed bus

• Weight: 0.35kg

• Dimensions: 32.8 × 130 × 142.5 mm

Ethernet Communication

• Function: Industrial Ethernet switch for field networks

• Protocols Supported: TCP/IP, UDP, VLAN, and Yokogawa-specific protocols

• Ports: Multiple RJ-45 10/100 Mbps Ethernet ports

• Redundancy: Dual-path communication for fault tolerance

• Power Supply: 24 V DC typical

• Power Consumption: 10–15 W

• Isolation: Galvanic isolation between communication channels

Mechanical & Environmental

• Form Factor: Rack or panel-mounted module

• Dimensions: 482.6 × 221.5 × 205 mm (standard rack size)

• Weight: 8–10 kg

• Indicators: LEDs for power, link status, and communication activity

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: -20 °C to +70 °C

• Humidity: 10–90% RH, non-condensing

• Protection Class: IP20

• Certifications: CE, UL, CSA