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Overview
The RB401 S9451DB-03 is a high-performance Remote I/O (RIO) Bus Interface Master Module from Yokogawa, engineered to manage communication between central controllers and distributed I/O nodes in advanced DCS setups such as CENTUM VP. Its robust design ensures accurate, high-speed data transfer across industrial networks.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | RB401 S9451DB-03 |
| Product Type | RIO Bus Interface Master Module |
| Supported Protocols | FOUNDATION Fieldbus (31.25 kbps), PROFIBUS (up to 12 Mbps), Modbus RTU |
| Communication Interface | RS-485 or Optical Fiber (version dependent) |
| Supply Voltage | 24 V DC (range: 20–28 V DC) |
| Power Consumption | Maximum 4.5 W |
| Operating Temperature | -20°C to +60°C |
| Dimensions | 25 mm × 254 mm × 203 mm |
| Weight | 0.3 kg |
| Mounting | Rack-mountable |
Key Features
- Functions as a master interface for remote I/O communication in DCS networks.
- Supports multiple industrial protocols, enabling integration with diverse field devices.
- Compact design allows efficient cabinet installation without compromising performance.
- High environmental tolerance ensures stable operation under harsh industrial conditions.
- Built-in diagnostics facilitate proactive system monitoring and reduced downtime.
Application Scenarios
- Chemical Industry: Precise monitoring and control of pumps, valves, and reactors.
- Power Generation: Real-time communication for turbines, boilers, and auxiliary systems.
- Oil & Gas: Reliable long-distance data transfer for refineries, pipelines, and field operations.
- Pharmaceuticals: Stable bus communication for batch and continuous production processes.
FAQ
Q: Can the RB401 S9451DB-03 interface with multiple fieldbus protocols simultaneously?
A: It supports FOUNDATION Fieldbus, PROFIBUS, or Modbus depending on module configuration, but each module operates on a single protocol at a time.
Q: Is the module suitable for outdoor installations?
A: The operating temperature range (-20°C to +60°C) supports indoor industrial environments; additional environmental protection is required for outdoor use.
Q: How does this model differ from RB401 S9451DB-01?
A: The S9451DB-03 offers enhanced diagnostic capabilities and supports higher protocol flexibility compared to earlier revisions.
