Yokogawa ESM10A-S41101 Safety Node Unit

Engineered for critical industrial applications, the Yokogawa ESM10A-S41101 Safety Node Unit serves as a robust interface for safeguarding process control systems. Commonly deployed in chemical plants, energy grids, and manufacturing facilities, this device ensures fail-safe operation by monitoring safety-critical parameters and triggering protective actions when thresholds are breached. Its modular design allows seamless integration with Yokogawa’s DCS and ProSafe-RS systems, making it a preferred choice for upgrading legacy installations.

Technical Specifications

Manufacturer: Yokogawa Electric Corporation

Model Number: ESM10A-S41101

Voltage Requirements: 100-120 V AC

Output Frequency: 50 kHz

Bus Architecture: Dual-redundant ESB Bus

Environmental Tolerance: Operates between -20°C to 60°C

Mounting Standard: 19-inch rack compatible

Safety Certification: ISA Standard G3

Power Redundancy: Dual-redundant power supply

Real-World Applications

Field engineers often deploy the ESM10A-S41101 in high-risk environments where system failures could lead to catastrophic outcomes. For instance, in natural gas processing facilities, it monitors pressure levels and initiates emergency shutdowns if limits are exceeded. Similarly, power plants use this unit to protect turbine systems from overheating. The device’s compatibility with Yokogawa’s STARDOM network allows retrofitting into existing SCADA architectures without requiring complete system overhauls.

Technical Advantages

What sets this safety node apart is its dual-redundant ESB bus architecture, which maintains functionality even during component failures. The 19-inch rack mount design simplifies installation in control cabinets alongside other instrumentation gear. Unlike single-channel safety modules, the ESM10A-S41101’s dual power supply ensures uninterrupted operation during AC input fluctuations – a critical feature for 24/7 industrial processes. Its ISA G3 compliance guarantees reliability in harsh electromagnetic environments commonly found near high-voltage equipment.