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Product Introduction
The Yokogawa SEC402-51 ESB Bus Coupler Module is an advanced communication interface designed to connect the Ethernet Safety Bus (ESB) network with Yokogawa’s distributed control and safety systems. This module enhances data exchange performance by providing increased throughput and support for complex network configurations within Yokogawa’s CENTUM and ProSafe-RS platforms.
Engineered for industrial-grade reliability, the SEC402-51 supports secure and deterministic Ethernet communication, making it suitable for high-availability systems requiring rigorous safety and control functions. The module’s compact, rack-mounted design ensures straightforward installation and serviceability within existing system architectures.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | SEC402-51 |
| Function | ESB Bus Coupler Module |
| Communication Protocol | Ethernet Safety Bus (ESB) |
| Interface | Ethernet (RJ45 connector) |
| Data Transfer Rate | Up to 100 Mbps |
| Operating Voltage | 24 VDC (typical control system supply) |
| Power Consumption | Approx. 4.2 W |
| Operating Temperature | -10°C to 55°C |
| Storage Temperature | -25°C to 70°C |
| Relative Humidity | 10% to 90% (non-condensing) |
| Dimensions (W x H x D) | 130 x 129.5 x 32.8 mm |
| Weight | 0.24 kg |
| Mounting Type | Rack-mounted |
| Certifications | CE, UL, SIL 3 (depending on configuration) |
Applications
The SEC402-51 module is widely used in various industries where safety and reliable communication are critical:
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Process Industries: Chemical plants, refineries, and manufacturing facilities utilize this module to ensure secure communication between control systems and field devices.
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Safety Instrumented Systems (SIS): The module supports SIL 3 rated safety systems that demand reliable, fault-tolerant communication.
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Power Generation: Used for controlling and monitoring turbines, boilers, and auxiliary systems where fast, dependable communication is required.
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Oil and Gas: Plays a key role in remote monitoring and control of pipelines and wellheads.
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Pharmaceutical Production: Ensures precise communication for regulatory-compliant automated processes.
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Water and Wastewater Treatment: Provides dependable control and monitoring communication in distributed sensor networks.
Advantages
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High-Speed Communication: Supports Ethernet data transfer rates up to 100 Mbps, enabling efficient real-time control.
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Safety Compliance: SIL 3 certification guarantees suitability for demanding safety applications.
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Robust and Reliable: Designed for industrial environments with resistance to temperature fluctuations and humidity.
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Compact and Modular: Fits standard rack systems with ease, allowing flexible system expansion.
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Energy Efficient: Low power consumption reduces operating costs.
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Integrated Diagnostics: Built-in diagnostic features assist in quick fault detection and system maintenance.
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Seamless Integration: Fully compatible with Yokogawa CENTUM VP and ProSafe-RS platforms.
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Global Standards: Certified to meet international safety and quality requirements.
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Ease of Maintenance: Modular design allows quick replacement with minimal system downtime.
Frequently Asked Questions (FAQ)
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What is the function of the SEC402-51 module?
It acts as a bus coupler, linking the ESB network with Yokogawa’s control and safety systems. -
Is the SEC402-51 suitable for safety-critical systems?
Yes, it is certified to SIL 3, suitable for high-integrity safety applications. -
What communication speed does the module support?
It supports Ethernet speeds up to 100 Mbps. -
What are the power requirements?
The module requires a 24 VDC power supply from the system rack. -
What are the physical dimensions of the module?
The size is 130 x 129.5 x 32.8 mm. -
How much does the SEC402-51 weigh?
It weighs 0.24 kg. -
Can the module operate in harsh environmental conditions?
Yes, it is designed to operate between -10°C and 55°C with 10%-90% non-condensing humidity. -
Does the module provide diagnostics?
Yes, integrated diagnostics allow easy fault identification. -
Is it compatible with existing Yokogawa control systems?
Yes, it integrates seamlessly with CENTUM VP and ProSafe-RS systems. -
How easy is it to replace or install the module?
The compact, rack-mounted design allows for easy installation and replacement with minimal system disruption.
Recommended Similar Models (Same Series or Related)
| Model Number | Function | Key Feature |
|---|---|---|
| SEC401-51 | ESB Bus Coupler Module | Standard ESB bus coupler |
| SEC401-11 | ESB Bus Coupler Module | Basic communication model |
| SEC401-21 | ESB Bus Coupler Module | Enhanced diagnostics |
| SEC401-31 | ESB Bus Coupler Module | Higher throughput capacity |
| SEC403-51 | Redundant Bus Coupler Module | Supports system redundancy |
| SEC404-51 | High-Performance Bus Coupler | Extended functionality and speed |
Popular Yokogawa Models (Same Brand)
| Model Number | Type | Description |
|---|---|---|
| CENTUM VP | Distributed Control System | Yokogawa’s flagship DCS platform |
| ProSafe-RS | Safety Instrumented System | High-integrity safety automation |
| FCS Controller | Field Control Station | Precision control for field devices |
| YTA610 | Temperature Transmitter | Reliable temperature measurement |
| YS100 | Wireless Field Transmitter | Wireless process monitoring |
| DPharp EJX | Differential Pressure Transmitter | Accurate pressure sensing |
