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Product Overview
The Yokogawa EC401-50 ESB Bus Coupler Module is a high-performance communication interface designed to link Field Control Units with Node Units via the ESB (Extension System Bus). It plays a vital role in extending the field I/O capabilities of the CENTUM VP system. Built to support both single and dual-redundant configurations, it ensures reliability and efficient data communication at high speeds.
This module is compatible with FIO-based Field Control Units such as AFV30S, AFV30D, AFV40S, AFV40D, A2FV50S, A2FV50D, A2FV70S, and A2FV70D, making it ideal for advanced industrial automation applications that require consistent uptime and robust I/O integration.
Technical Specifications
| Item | Specification |
|---|---|
| Model | EC401-50 |
| Function | ESB bus interface module |
| Supported Units | Max. 9 node units (e.g., ANB10S, ANB10D, ANT401) |
| Transmission Speed | 128 Mbps |
| Transmission Distance | Up to 10 meters |
| Current Consumption | 0.5 A |
| Redundancy Support | Yes (Dual-redundant ESB Bus capable) |
| Slot Position Requirement | Slot 7 (non-redundant) or Slots 7 & 8 (redundant) |
| Compatible Control Units | AFV30/40/A2FV series FIO controllers |
| Dimensions (W x H x D) | 130 x 129.5 x 32.8 mm |
| Weight | Approx. 0.24 kg |
| Style Compatibility | Style S3 or later (for CP471 compatibility) |
| Explosion Protection | -5 (non-ex), -E (with explosion protection) |
| G3 Option | 0 (Basic), 1 (ISA G3 compliant) |
Applications
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Distributed Control Systems (DCS) in process industries
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Oil & gas plant control systems
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Chemical production automation
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Power generation systems
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Pharmaceutical manufacturing facilities
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Water and wastewater treatment plants
The EC401 module enhances system flexibility by facilitating efficient I/O expansion, enabling seamless control across large-scale systems through modular interconnection.
Advantages
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High-Speed Communication: Operates at 128 Mbps for rapid data exchange between control and node units.
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Modular Redundancy: Supports dual-redundant ESB configurations for improved reliability and system uptime.
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Compact & Lightweight: Slim form factor fits easily into control panels without consuming excessive space.
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Flexible Integration: Compatible with various FIO control units and multiple node types.
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Explosion-Proof Options: Versions available for hazardous industrial environments.
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Scalable Design: Expandable up to 9 node units, allowing future system growth without redesign.
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G3 Option Available: For enhanced environmental resistance and industrial robustness.
FAQs
Q1: What is the main function of the EC401 module?
A1: It serves as a communication interface connecting Field Control Units to Node Units over the ESB bus.
Q2: How many node units can be connected to the EC401 module?
A2: Up to 9 node units such as ANB10S, ANB10D, ANT401, ANT411, and ANT421.
Q3: Is the EC401 suitable for redundant system configurations?
A3: Yes, dual-redundant ESB bus configurations can be achieved by installing EC401 modules in slots 7 and 8.
Q4: Which control units are compatible with the EC401 module?
A4: AFV30S, AFV30D, AFV40S, AFV40D, A2FV50S, A2FV50D, A2FV70S, and A2FV70D.
Q5: What is the data transmission speed of the EC401?
A5: The transmission speed is 128 Mbps.
Q6: What is the power consumption of the module?
A6: It consumes approximately 0.5 A of current.
Q7: Can the EC401 be used in explosive environments?
A7: Yes, the “-E” suffix variant is designed for explosion protection.
Q8: What are the physical dimensions of the EC401?
A8: 130 mm (W) × 129.5 mm (H) × 32.8 mm (D).
Q9: Is the EC401 compatible with the CP471 processor module?
A9: Yes, but only style code S3 or later versions of EC401 can be used.
Q10: What are the installation requirements for non-redundant configurations?
A10: The EC401 should be installed in the 7th slot, with the 8th slot covered by a dummy module.
Related or Similar Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| ANB10S | Node Interface Unit, Standard | 130 x 129.5 x 32.8 | 0.26 kg |
| ANB10D | Node Interface Unit, Dual | 130 x 129.5 x 32.8 | 0.27 kg |
| ANT401 | Terminal Unit | 130 x 129.5 x 32.8 | 0.22 kg |
| ANT411 | Terminal Unit with Barrier | 130 x 129.5 x 32.8 | 0.24 kg |
| ANT421 | Explosion-Proof Terminal Unit | 130 x 129.5 x 32.8 | 0.25 kg |
| EC402 | ESB Bus Coupler Module (2-Port) | 130 x 129.5 x 32.8 | 0.26 kg |
Popular Yokogawa Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| CP471 | Processor Module for FIO | 130 x 129.5 x 32.8 | 0.30 kg |
| PW402 | Power Supply Module | 130 x 129.5 x 32.8 | 0.35 kg |
| ADV151 | Digital Output Module | 130 x 129.5 x 32.8 | 0.25 kg |
| AAI543 | Analog Input Module (HART) | 130 x 129.5 x 32.8 | 0.29 kg |
| SAI533 | Smart Analog Input Module | 130 x 129.5 x 32.8 | 0.28 kg |
| PW302 | Power Supply Module, Style S4 | 130 x 129.5 x 32.8 | 0.34 kg |
