Yokogawa RB301 Redundant Bus Module
Technical Specifications:
- Bus Type: Dual redundant internal bus, supporting data transmission rates up to 100Mbps.
- Switchover Time: ≤1ms, realizing seamless bus switching without data loss.
- Number of Connected Modules: Up to 32 I/O modules per bus, supporting system expansion.
- Isolation Voltage: 500V AC between buses, preventing mutual interference.
- Operating Temperature: -10℃ to 55℃, storage temperature: -20℃ to 60℃.
- Power Consumption: 2W (24V DC), low energy consumption.
- Dimensions: 100×160×220mm, fitting standard control cabinets.
Detailed content
- Functional Characteristics:
- It has a dual-bus redundant design, eliminating single points of failure in communication.
- It monitors bus status in real-time, triggering alarms for abnormal conditions such as disconnection or data errors.
- It supports online bus diagnostics, enabling quick fault location and maintenance.
- It is compatible with Yokogawa CENTUM VP DCS, seamlessly integrating with system components.
- It has a modular design, easy to install and replace for efficient system maintenance.
- Application Scenarios: Widely used in the redundant communication of DCS systems in large-scale petrochemical plants; the data transmission between controllers and I/O modules in the power generation industry; the bus redundancy of safety systems in the pharmaceutical industry; and the reliable communication of control systems in the metallurgical industry.












