Yokogawa NFSB100-S10/SBT01 SB Bus Repeat Module

The Yokogawa NFSB100-S10/SBT01 SB Bus Repeat Module is designed for extending the communication distance and enhancing the reliability of system bus signals within industrial automation systems. It plays a critical role in large-scale distributed control systems (DCS) by repeating, regenerating, and isolating bus signals, ensuring seamless data transmission across extended network segments. This module supports stable communication even under challenging industrial environments where signal attenuation or interference can be an issue.

Technical Specifications

Product Applications

• Large Distributed Control Systems (DCS): Ensures stable communication across extended process control networks.

• Industrial Plants: Supports communication integrity in power plants, chemical plants, oil & gas facilities, and refineries.

• High-Noise Environments: Provides reliable isolation and regeneration of signals where electromagnetic interference is present.

• System Expansion: Allows integration of additional nodes without signal degradation.

• Remote I/O Installations: Maintains communication with remote control units across large facilities.

Product Advantages

• Extended Communication Range: Overcomes distance limitations of the SB bus.

• Signal Integrity: Provides regeneration and reshaping of degraded signals.

• Isolation Function: Enhances noise immunity and protects devices from electrical disturbances.

• Reliability: Engineered for continuous operation in harsh industrial conditions.

• Flexible System Integration: Compatible with Yokogawa SB bus-based modules.

• Compact Design: Slim and lightweight, conserving panel space while maintaining high performance.

FAQ

Q1: How does the NFSB100-S10/SBT01 regenerate SB bus signals?

A1: It amplifies and reshapes weakened signals, ensuring signal timing and integrity are restored for onward transmission.

Q2: Can multiple repeat modules be connected in series?

A2: Yes, multiple units can be cascaded to further extend bus communication, within recommended system design guidelines.

Q3: Does the module provide galvanic isolation?

A3: Yes, it provides electrical isolation between input and output channels to reduce interference.

Q4: What is the maximum communication distance supported with this repeater?

A4: The distance depends on the cable type and system design, but it typically extends the SB bus range by several hundred meters per unit.

Q5: Is redundancy supported for the repeater module?

A5: Yes, redundant repeater configurations can be implemented for critical systems to ensure communication reliability.

Q6: How does the repeater handle bus errors or noise interference?

A6: It isolates and filters signal disturbances, regenerating only the correct bus signals for transmission.

Q7: Is hot-swap replacement supported for this module?

A7: Hot-swap capability depends on the system configuration, but in most Yokogawa platforms, the bus repeat module requires controlled replacement.

Q8: Can the repeater be monitored through system diagnostics?

A8: Yes, it integrates with Yokogawa diagnostics, allowing monitoring of status and fault conditions.

Q9: What is the typical latency introduced by the repeater?

A9: The delay is minimal, generally in the microsecond range, ensuring real-time bus communication is unaffected.

Q10: How many repeaters can be installed in a single system segment?

A10: This depends on overall system design limits, but typically multiple repeaters can be used as long as timing margins are maintained.