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- Yokogawa
- RB401
- RIO Bus Module
- Japan
- 130 (H) × 250 (W) × 85 (D)
- 0.85kg
- Xiamen, China
- New & In Stock
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Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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📘 Product Overview – Yokogawa RB401
✅ Product Introduction
The Yokogawa RB401 is a robust remote I/O base unit that functions as a critical foundation for mounting I/O modules in distributed control systems. Known for its superior reliability and flexibility, the RB401 supports seamless integration into high-availability process automation environments. It serves as a backbone in various industrial setups by securely holding analog, digital, and specialty I/O modules.
With its rugged structure and compatibility with a wide array of Yokogawa modules, the RB401 ensures efficient signal transmission, error-free data handling, and minimal system downtime.
🏭 Application Areas
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Oil & Gas refineries
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Chemical manufacturing plants
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Power generation and distribution
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Water and wastewater treatment
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Pharmaceutical process control
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Steel and paper mills
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Marine automation systems
💡 Product Advantages
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High Durability: Industrial-grade build for harsh environments
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Modular Flexibility: Easily integrates various I/O types
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Time-Saving Maintenance: Plug-and-play module replacement
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Signal Integrity: Maintains reliable signal communication
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Scalability: Supports both small and large DCS systems
🏷 Brand and Series
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Brand: Yokogawa
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Series: Vnet/IP Remote I/O Series
📊 Product Specifications
| Parameter | Description |
|---|---|
| Model Number | RB401 |
| Function | Remote I/O base unit |
| Supported Modules | AI, AO, DI, DO, special function I/O |
| Mounting Type | DIN-rail / Panel mount |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Power Supply | 24 VDC (via backplane connection) |
| Material | Flame-retardant ABS/PC plastic |
| Color | Industrial grey |
| Dimensions (mm) | 130 (H) × 250 (W) × 85 (D) |
| Weight | 0.85 kg |
| Compliance | CE, RoHS, UL |
| Communication | Vnet/IP compatible |
🔁 Related Models (Same Series or Compatible)
| Model | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| RB402 | Extended I/O base | 130×260×85 | 0.88 |
| RB403 | Compact I/O base | 110×220×80 | 0.76 |
| RB404 | High-speed signal base | 130×270×85 | 0.90 |
| RB405 | Shielded signal I/O base | 130×250×90 | 0.92 |
| RB406 | Redundant I/O base | 140×270×90 | 0.98 |
🌐 Popular Yokogawa Models (Same Brand, Other Series)
| Model | Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| ADV551-P63 | Analog Input Module | 130×65×150 | 0.50 |
| AIP171 | Analog Input (32CH) | 130×100×160 | 0.58 |
| CP451-51 | Processor Module | 150×120×170 | 1.20 |
| ANB10D-420 | Node Interface Module | 160×120×160 | 1.15 |
| PW482-50 | Power Supply Module | 130×65×150 | 0.95 |
❓ Frequently Asked Questions (FAQ)
Q1: What is the primary function of the RB401 unit?
A1: The RB401 acts as a base unit that provides mechanical support and electrical connections for I/O modules within a Yokogawa DCS setup.
Q2: Can I use RB401 with redundant I/O modules?
A2: Yes, the RB401 supports standard and redundant I/O configurations depending on the installed modules.
Q3: What kind of communication does the RB401 support?
A3: It is compatible with Yokogawa’s Vnet/IP communication protocol, ensuring real-time data exchange.
Q4: Does RB401 require a separate power supply?
A4: No, the RB401 draws power from the backplane connection integrated into the system.
Q5: Is RB401 suitable for outdoor environments?
A5: RB401 should be installed in control cabinets or protected enclosures for outdoor usage, as it is not weatherproof on its own.
Q6: How many I/O modules can be mounted on the RB401?
A6: Typically, it can support up to 8 I/O modules depending on system configuration and load.
Q7: Can I hot-swap modules on RB401?
A7: Yes, most I/O modules are designed for hot-swapping, which minimizes downtime during maintenance.
Q8: What certifications does RB401 comply with?
A8: It is certified for CE, RoHS, and UL standards, ensuring industrial-grade safety and performance.
Q9: Does the RB401 include diagnostics?
A9: While the base unit itself doesn’t process diagnostics, modules installed on it may offer built-in self-diagnostics accessible via the DCS.
Q10: Is the RB401 backward compatible with older Yokogawa systems?
A10: Yes, it is backward compatible with multiple generations of Yokogawa I/O systems using Vnet/IP.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.