Product Overview

The ABB SM811K01, identified by part number 3BSE018173R1, is a high-integrity safety central processing unit specifically engineered for SIL3-certified industrial automation environments. This module functions as a dedicated safety controller within the AC 800M architecture, often paired with the PM865 processor to execute safety-critical logic. By utilizing a diverse redundant internal architecture, the SM811K01 ensures that emergency shutdown (ESD) tasks and fire and gas (F&G) monitoring are performed independently of standard process control. This module is a vital component for maintaining the functional safety of industrial plants, providing the computational power and deterministic response times required to mitigate operational risks and protect personnel and assets.

Hardware Parameters and Technical Characteristics

The SM811K01 is built with specialized hardware to meet stringent global safety standards, featuring a rugged design for high-availability cabinet installation.

• Model Number SM811K01

• Order Number 3BSE018173R1

• Safety Integrity Level Certified for SIL3 applications (IEC 61508)

• Processing Power 300 MHz dedicated safety processor

• Memory Configuration 128 MB RAM and 64 MB Flash memory

• Power Supply 24V DC nominal (range of 19.2V to 30V DC)

• Power Consumption Typically 15W

• Bus Interface Connects via CEX-Bus with BC810 interconnection support

• Temperature Range Operational: 0°C to +60°C; Storage: -40°C to +85°C

• Module Mass 0.5 kg (Unit only)

• Package Dimensions 18.5 x 6.5 x 12.5 cm

• Included Components SM811 module, TP868 baseplate, and TK852V10 synchronization cable

• Compatibility Note Specifically designed for the maintenance and repair of systems installed prior to July 2017.

Operational Use Cases and Industrial Applications

The 3BSE018173R1 SM811K01 is primarily utilized in sectors where process failures could lead to catastrophic environmental or safety consequences.

• Emergency Shutdown Systems (ESD) Serving as the logic solver in petrochemical refineries to safely isolate equipment during overpressure or leak detection events.

• Fire and Gas (F&G) Monitoring Coordinating the response of flame detectors and gas sensors in offshore oil platforms, triggering suppression systems and alarms.

• Burner Management Systems (BMS) Managing the safety-related startup and shutdown sequences for large industrial boilers and furnaces.

• Critical Process Interlocks Enforcing hard-coded safety logic in pharmaceutical batch processing to prevent the accidental mixing of hazardous compounds.

• Legacy Safety Upgrades Providing a high-reliability replacement part for existing AC 800M safety loops, ensuring continued SIL3 compliance for older infrastructure.