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Product Description
The Yokogawa EB401-50 ER Bus Interface Master Module is a communication module developed by Yokogawa Electric Corporation. It is used to establish connectivity between ESB Bus Node Units or Compact Field Control Units (for FIO) and ER Bus Node Units (Remote Nodes) via the ER bus. This module plays a vital role in distributed control systems by providing reliable data transmission channels across remote units. It is specifically designed to be installed in models such as ANB10S, ANB10D, AFF50S, AFF50D, AFV10S, and AFV10D.
The EB401-50 supports dual-redundant configurations when two modules are installed, enhancing communication reliability and system robustness.
Technical Specifications
| Parameter | Specification |
|---|---|
| Function | ER Bus Interface Function |
| Physical Layer Interface | IEEE802.3 10BASE2 (Coaxial Ethernet) |
| Communication Port | 1 × BNC connector |
| Communication Speed | 10 Mbps |
| Transmission Distance | Up to 185 meters (using YCB141 cable) |
| Current Consumption | 0.7 A |
| Supported Devices | ANB10S, ANB10D, AFF50S, AFF50D, AFV10S, AFV10D |
| Weight | 0.3 kg |
| Dimensions (W x H x D) | 144.65 mm × 130 mm × 32.8 mm |
| Redundancy Support | Dual-redundant configuration supported with two modules |
| Connector Accessories | T-type Connector (YCB146), Terminators (YCB148) x2 (included) |
| Explosion Protection Option | -E suffix indicates explosion-proof version |
| Environmental Specification | Optional ISA Standard G3 (with -1 suffix) |
Applications
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Industrial process automation systems
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Remote I/O extension in distributed control systems
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Integration with Yokogawa CENTUM control systems
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Systems requiring dual-redundant communication over long distances
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Harsh environments requiring explosion-protected devices (when using -E variant)
Product Advantages
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Reliable Redundancy: Supports dual-redundant ER bus connections for critical system uptime.
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Compatibility: Works seamlessly with several field and node units from the Yokogawa FIO family.
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Long Transmission Range: Up to 185 meters transmission distance meets large plant requirements.
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Integrated Accessories: Comes with required connectors and terminators, ensuring ready deployment.
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Compact & Lightweight: Small footprint and low weight (0.3 kg) makes it easy to integrate into compact systems.
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Explosion Protection Available: Model variant available for hazardous locations.
FAQs
Q1: What is the primary function of the EB401-50 module?
A1: It acts as the master communication interface between ESB/Compact units and ER remote nodes.
Q2: Which devices are compatible with the EB401-50?
A2: It is compatible with ANB10S, ANB10D, AFF50S, AFF50D, AFV10S, and AFV10D.
Q3: Does this module support redundancy?
A3: Yes, dual-redundant ER bus configurations are supported when two EB401 modules are installed.
Q4: What kind of connector does the module use?
A4: It uses a BNC connector for IEEE802.3 10BASE2 coaxial Ethernet.
Q5: What is the communication speed of the EB401-50?
A5: The module communicates at 10 Mbps.
Q6: How far can the module transmit data?
A6: It supports transmission up to 185 meters using the YCB141 cable.
Q7: Are terminators included with the module?
A7: Yes, two YCB148 terminators and one YCB146 T-type connector are included.
Q8: Is there an explosion-proof variant?
A8: Yes, the -E suffix variant is certified for explosion-protected environments.
Q9: What is the module’s power consumption?
A9: It consumes 0.7 A of current.
Q10: What are the physical dimensions of the EB401-50?
A10: The dimensions are 144.65 mm x 130 mm x 32.8 mm.
Related or Same-Series Models
| Model | Description | Interface | Redundancy Support | Weight |
|---|---|---|---|---|
| EB401-5 | Standard ER Bus Interface Module | 10BASE2 | Yes | 0.3 kg |
| EB401-E | Explosion-Protected ER Bus Interface Module | 10BASE2 | Yes | 0.3 kg |
| ANB10S | ESB Bus Node Unit (Single) | – | Yes | Varies |
| ANB10D | ESB Bus Node Unit (Dual) | – | Yes | Varies |
| AFF50S | Compact Field Control Unit (Single) | – | Yes | Varies |
| AFV10S | Compact Field Control Unit (Single with expansion) | – | Yes | Varies |
Popular Yokogawa Models
| Model | Description | Functionality | Weight | Dimensions (mm) |
|---|---|---|---|---|
| PW402 | Power Supply Module for FIO | Power Supply | 1.0 kg | 130 x 160 x 45 |
| AAI543-H50 | Analog Input Module (16 ch, HART) | AI Module with HART | 0.45 kg | 130 x 160 x 35 |
| ADV151 | Digital Output Module (32 ch, 24 V DC) | DO Module | 0.42 kg | 130 x 160 x 35 |
| AAR181-S50 | Remote I/O Control Module | Remote I/O control | 0.50 kg | 130 x 160 x 40 |
| ANB10D | Dual ESB Bus Node Unit | Node Unit | 0.80 kg | 150 x 150 x 50 |
| AFF50D | Compact Field Control Unit (Dual) | FIO Controller | 1.20 kg | 180 x 160 x 50 |
