Yokogawa SEC402-51 ESB Bus Controller Module
- Product Introduction: An ESB (Enhanced Serial Bus) controller module for Yokogawa’s SSC10S/D safety instrumented systems, enabling communication between safety controllers and I/O modules for functional safety applications.
- Technical Specifications:
- Communication Protocol: ESB bus, 1 Mbps data rate
- Number of ESB Ports: 2 (redundant)
- I/O Capacity: Supports up to 32 I/O modules
- Power Supply: 24V DC, 3W power consumption
Detailed content
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- Operating Temperature: -20 to 70°C
- Protection Class: IP20
- Weight: 0.4 kg
- Functional Features:
- Redundant ESB ports for high availability in safety-critical systems
- Fast data transfer for real-time safety control and monitoring
- Built-in diagnostic tools for bus communication fault detection
- Compatibility with Yokogawa’s SSC10S/D safety controllers
- Hot-swappable for maintenance without system shutdown
- Application Scenarios: Petrochemical refineries, chemical plants, and power generation facilities for safety instrumented functions (SIFs) including emergency shutdown and fire & gas monitoring.












