
Product Description
YOKOGAWA ALE111-S50 S1 Ethernet Communication Module for Safety Systems
The YOKOGAWA ALE111-S50 S1 Ethernet Communication Module is a mission-critical interface designed specifically for ProSafe-RS Safety Control Stations. This industrial-grade module enables seamless, interference-free communication between safety instrumented systems (SIS) and supervisory control networks, ensuring compliance with IEC 61508 functional safety standards.
Technical Specifications
- Protocol Support: Modbus TCP/IP, DNP3 over Ethernet
- Network Interface: 10/100 Mbps Ethernet with auto-negotiation
- Safety Integrity Level: SIL 3 certified for safety-critical applications
- Communication Ports: Dual RJ45 connectors for redundant network topology
- Operating Temperature: -20°C to +60°C (-4°F to +140°F)
- Isolation: Galvanic isolation between safety bus and Ethernet network
- Diagnostic LEDs: Power, Link, Activity, and Error status indicators
- MTBF: >100,000 hours for continuous industrial operation
Application Scenarios
Engineered for hazardous process environments, the ALE111-S50 S1 excels in oil & gas refineries, petrochemical plants, pharmaceutical manufacturing, and power generation facilities where safety system integrity is paramount. The module facilitates real-time monitoring of emergency shutdown (ESD) systems, fire & gas detection networks, and burner management systems (BMS) while maintaining strict separation between safety and control layers.
Advanced Safety Communication Solutions
This Ethernet module implements black-channel communication architecture, ensuring that safety-related data transmission remains unaffected by non-safety network traffic. The dual-port design supports ring topology configurations, providing automatic failover capabilities that eliminate single points of failure. With built-in watchdog timers and cyclic redundancy checks (CRC), the ALE111-S50 S1 detects and reports communication anomalies within milliseconds, triggering safe-state transitions when necessary.
Integration & Deployment Benefits
Plug-and-play compatibility with YOKOGAWA ProSafe-RS systems accelerates commissioning timelines while reducing engineering overhead. The module's hot-swappable design enables maintenance without system shutdown, minimizing production interruptions. Advanced diagnostics accessible via web interface streamline troubleshooting, displaying real-time packet statistics, error logs, and network health metrics. Configuration tools support bulk parameter upload, simplifying multi-module deployments across distributed safety architectures.
Related Products
| Product | Description | Link |
|---|---|---|
| ALE111-S00 Ethernet Module | Standard Ethernet communication for safety systems | View Product |
| ALR111-S50 Serial Module | RS-232/485 serial communication for legacy integration | View Product |
| SSC10D-S2111 Safety Unit | Duplexed safety control unit for high-availability systems | View Product |
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