Product Introduction
The Yokogawa SEC402-51 S1 ESB Bus Coupler Module is an enhanced communication interface designed to connect the Ethernet Safety Bus (ESB) network within Yokogawa’s distributed control and safety systems. It enables seamless, high-speed communication between field devices and control systems such as CENTUM VP and ProSafe-RS.
This module offers improved performance and reliability by supporting deterministic data transfer essential for safety-critical processes. Its compact design facilitates easy integration into Yokogawa’s rack-mounted systems, making it suitable for industries requiring stringent safety standards and efficient data handling.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | SEC402-51 S1 |
| Function | ESB Bus Coupler Module |
| Communication Protocol | Ethernet Safety Bus (ESB) |
| Interface | RJ45 Ethernet connector |
| Data Transfer Rate | Up to 100 Mbps |
| Operating Voltage | 24 VDC (typical control system supply) |
| Power Consumption | Approx. 4.3 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 S1 module is widely applied across industries where safety and communication reliability are critical:
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Chemical and Petrochemical Plants: Ensures safe, fault-tolerant communication in complex process control environments.
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Safety Instrumented Systems (SIS): Supports SIL 3 rated systems requiring deterministic Ethernet communication.
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Power Generation: Facilitates reliable control and monitoring of turbines, generators, and auxiliary systems.
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Oil & Gas Industry: Used for remote monitoring and safe operation of pipelines and offshore installations.
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Pharmaceutical Manufacturing: Enables precise control and traceability required by regulatory standards.
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Water and Wastewater Treatment: Enhances distributed control and monitoring of treatment processes.
Advantages
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Reliable and Secure Communication: Guarantees deterministic Ethernet communication for safety-critical systems.
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High Throughput: Supports data transfer rates up to 100 Mbps for efficient system performance.
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SIL 3 Certification: Meets international standards for safety integrity, suitable for high-risk environments.
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Robust Design: Operates under wide temperature and humidity ranges typical in industrial sites.
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Compact and Modular: Easy installation and maintenance with a small footprint in rack systems.
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Energy Efficient: Low power consumption helps reduce operational costs.
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Advanced Diagnostics: Integrated diagnostic functions facilitate preventive maintenance and troubleshooting.
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Seamless System Integration: Compatible with Yokogawa CENTUM VP and ProSafe-RS control platforms.
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Global Compliance: Certified for worldwide use, ensuring safety and quality adherence.
Frequently Asked Questions (FAQ)
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What is the primary role of the SEC402-51 S1 module?
It serves as a bus coupler connecting the ESB network to Yokogawa control and safety systems. -
Is the module certified for safety-critical environments?
Yes, it holds SIL 3 certification for safety-instrumented systems. -
What communication speed does it support?
It supports Ethernet speeds of up to 100 Mbps. -
What voltage power supply does the module require?
It requires a 24 VDC power supply typical of industrial control systems. -
What are the module’s physical dimensions?
The module measures 130 x 129.5 x 32.8 mm. -
What is the weight of the SEC402-51 S1?
It weighs 0.24 kg. -
Can it operate in harsh environmental conditions?
Yes, it is designed for operation between -10°C and 55°C and 10% to 90% non-condensing humidity. -
Does it provide diagnostic features?
Yes, integrated diagnostics help detect faults and assist maintenance. -
Is it compatible with existing Yokogawa systems?
Fully compatible with CENTUM VP and ProSafe-RS platforms. -
How easy is installation and replacement?
The modular, rack-mounted design ensures simple installation and maintenance.
Recommended Similar Models (Same Series or Related)
| Model Number | Function | Key Feature |
|---|---|---|
| SEC401-51 | ESB Bus Coupler Module | Standard communication module |
| SEC401-11 | ESB Bus Coupler Module | Basic model |
| SEC401-21 | ESB Bus Coupler Module | Enhanced diagnostics |
| SEC401-31 | ESB Bus Coupler Module | Higher throughput capability |
| SEC403-51 | Redundant Bus Coupler Module | Redundancy support |
| SEC404-51 | High-Performance Bus Coupler | Extended features and speed |
Popular Yokogawa Models (Same Brand)
| Model Number | Type | Description |
|---|---|---|
| CENTUM VP | Distributed Control System | Yokogawa’s flagship control platform |
| ProSafe-RS | Safety Instrumented System | Safety automation platform |
| FCS Controller | Field Control Station | High-performance field control |
| YTA610 | Temperature Transmitter | Precision temperature measurement |
| YS100 | Wireless Field Transmitter | Wireless monitoring solution |
| DPharp EJX | Differential Pressure Transmitter | Highly accurate pressure sensing |
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