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The Yokogawa S2BN1D-190 is a Terminal Base used in Yokogawa N-IO (Network I/O) systems, commonly applied in CENTUM VP distributed control systems and ProSafe-RS safety instrumented systems.
It provides the mechanical and electrical interface for mounting I/O modules, supporting field wiring termination, system power distribution, and communication through the F-SB bus. The terminal base is designed for modular configuration, enabling flexible expansion of industrial I/O systems.
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa |
| Model | S2BN1D-190 |
| Product Type | Terminal Base |
| System Application | CENTUM VP / ProSafe-RS / N-IO system |
| Function | I/O module mounting and field termination |
| Mounting Type | DIN rail / panel mounting |
| I/O Configuration | Single or redundant support |
| Communication Bus | F-SB bus |
| Field Power Supply | 24 V DC system supply |
| Channel Capacity | Multi-channel I/O support (typical 16-channel modules) |
| Protection Rating | Industrial-grade design |
| Dimensions | 252 × 134 × 85.4 mm |
| Weight | 1.4 kg |
The S2BN1D-190 Terminal Base acts as the physical and electrical foundation for Yokogawa N-IO systems. It connects field wiring to I/O modules, distributes power, and enables communication between field devices and the control system.
It allows multiple I/O modules to be mounted in a structured layout, ensuring stable signal transmission and simplified maintenance in complex automation systems.
Operating Sequence
The S2BN1D-190 serves as the foundation interface layer between field wiring and Yokogawa I/O modules, ensuring structured signal routing and stable system communication.
Typical System Architecture
Field Devices → Terminal Base (S2BN1D-190) → I/O Modules → F-SB Bus → Control/Safety System → DCS / SIS Platform
| Model | Description |
|---|---|
| S2BN1D-11130 | N-IO Base Plate variant |
| S2BN1D-12030 | Base plate alternative configuration |
| S2BN1D-11120 | Compact base plate version |
| S2BN1S series | Standard base plate family |
It is used as a terminal base for mounting and connecting N-IO modules in Yokogawa control and safety systems.
No. It is only a base interface component for I/O modules and field wiring.
It is used in Yokogawa CENTUM VP and ProSafe-RS systems.
Yes, it supports both single and redundant I/O configurations.
The Yokogawa S2BN1D-190 Terminal Base is a key infrastructure component for N-IO-based control and safety systems. With its modular architecture, reliable field wiring interface, and stable power and communication distribution, it provides a robust foundation for industrial automation applications requiring high reliability and scalability.