Overview
The YOKOGAWA RB401 S4 RIO Bus Module – Style 4 is a high-performance communication interface designed for distributed control and safety systems. It efficiently manages data transmission between remote I/O units and the main controller, ensuring seamless integration across complex industrial environments. Moreover, its advanced design enhances system responsiveness and stability, supporting high-speed, noise-resistant communication in demanding field conditions.
This module is a crucial component in YOKOGAWA’s CENTUM VP and ProSafe-RS systems, delivering reliable control performance and long-term operational integrity. Its compact form factor and modular architecture simplify system expansion and maintenance, making it ideal for modern process automation networks.
Technical Specifications
| Parameter |
Description |
| Model |
YOKOGAWA RB401 S4 |
| Product Type |
RIO Bus Module – Style 4 |
| Communication Interface |
Remote I/O (RIO) Bus |
| Supported Systems |
CENTUM VP, ProSafe-RS |
| Function |
Communication between controllers and I/O modules |
| Power Supply |
24 VDC nominal |
| Redundancy |
Supported |
| Operating Temperature |
0°C to +55°C |
| Mounting |
System backplane |
| Status Indicators |
Communication and power LEDs |
| Dimensions |
Standard system card size |
| Certification |
CE compliant |
FAQ
Q1: What is the function of the YOKOGAWA RB401 S4 module?
It serves as a communication interface that connects controllers with remote I/O units via the RIO bus network.
Q2: Can the RB401 S4 be used with CENTUM VP systems?
Yes, it is fully compatible with YOKOGAWA CENTUM VP and ProSafe-RS control platforms.
Q3: Does this module support redundancy?
Absolutely. The RB401 S4 supports redundant configurations for high system availability and fault tolerance.
Q4: What type of industries typically use this module?
It is commonly used in oil and gas, chemical, power generation, and water treatment applications.
Q5: How is module status monitored?
LED indicators display communication and power status, enabling quick diagnostics and simplified maintenance.
