The YOKOGAWA NFSB100-S00, also cataloged as the NFSB100 Node Interface Unit, operates as a dedicated hardware component for ESB bus connectivity and I/O module management within CENTUM VP and CS 3000 platforms.
| Parameter | Specification |
| Model | NFSB100-S00 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.6kg |
| Dimensions | 482.6 x 221.5 x 205 mm |
| Operating Temp | -10 deg C to +55 deg C (standard) |
| Power Consumption | Max 5.5 A |
| Bus Interface | ESB bus |
| I/O Capacity | 8 modules per unit |
| Supply Voltage | 24 VDC |
The YOKOGAWA NFSB100-S00 provides the physical infrastructure for the Enhanced System Bus (ESB), facilitating high-speed deterministic data transfer between field-mounted I/O modules and the Field Control Station (FCS). The unit is designed with robust channel-to-channel isolation architecture, effectively mitigating signal interference and ensuring data integrity across complex control loops. Integrated cold junction compensation is managed at the individual I/O module level, while the NFSB100-S00 provides the necessary electrical distribution and structural housing to support up to 8 I/O modules. The system features redundant power supply distribution, maintaining loop availability and ensuring operational continuity during primary power source transitions.
Q: Can the NFSB100-S00 support redundant CPU configurations?
A: Yes, this unit is engineered to support duplexing for CPU and control network operations within the CENTUM VP environment. Redundancy settings must be configured at the FCS level to ensure seamless failover.
Q: What environmental protections are integrated into this hardware?
A: The NFSB100-S00 is rated with ISA G3 corrosion-resistant protection, allowing for sustained deployment in harsh, chemically aggressive industrial environments.
Mounting: Install the unit in a standard 19-inch equipment rack. Ensure the unit is secured using all mounting points to maintain structural integrity and minimize vibration effects on internal bus connectors.
Power: Terminate redundant 24 VDC supplies at the designated input terminals. Verify that the power source capacity is sufficient to handle the 5.5 A peak current requirement without excessive voltage sag.
Grounding: Connect the enclosure to the cabinet's protective earth bus. This is necessary to satisfy the CE and CSA grounding requirements and to maintain the efficacy of the ISA G3 protective environment.
Wiring: Maintain clear separation between ESB bus cabling and high-voltage power lines to prevent electromagnetic induction interference. Secure all internal module latches fully to ensure reliable contact with the backplane bus.
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