ABB SM812K01 SIL3 Safety CPU for PM857 PM863 PM867

Product Overview

The ABB SM812K01 (3BSE072270R1) functions as the high-integrity safety processor for ABB’s System 800xA architecture, supporting version 6.0.2 and subsequent releases. This module executes critical safety logic independently of the process controller, achieving full SIL3 certification according to IEC 61508. Designed for high-risk industrial environments such as chemical processing, offshore oil and gas, and power generation, the SM812K01 provides the deterministic performance required for emergency shutdown (ESD) and fire and gas (F&G) systems. We supply this unit as a 100% Brand New original kit, ensuring full hardware compliance and long-term reliability for your safety-instrumented functions.

Technical Specifications

The SM812K01 kit integrates high-performance safety hardware and required synchronization accessories:

• Model Number: SM812K01

• Part Number: 3BSE072270R1

• Safety Certification: SIL3 (IEC 61508)

• System Compatibility: ABB 800xA 6.0.2 and later

• Processor Compatibility: Pairs with PM857, PM863, and PM867 Controllers

• Included Components: SM812 Safety CPU, TK852V10 Link Cable, TP868 Baseplate

• Operating Temperature: -25 to +70 deg C

• Communication: High-speed Synchronization Link and CEX-bus

• Mounting: Rack-mounted industrial chassis

• Net Weight: 0.63 kg (Processor only)

• Shipping Weight: 1.5 kg (Complete Kit)

• Origin: Sweden

• Compliance: RoHS Following EU Directive 2011/65/EU

Engineering Advantages

The SM812K01 addresses the most stringent safety and availability requirements in modern automation:

• High-Integrity Synchronization: The included TK852V10 synchronization link cable ensures real-time data mirroring between primary and redundant processors. This hardware-level link minimizes failover latency, maintaining process safety even during a catastrophic hardware fault in the active unit.

• Extended Thermal Range: Unlike standard controllers that struggle in extreme heat, the SM812K01 operates reliably up to +70 deg C. This resilience allows for installation in remote instrument enclosures or near high-heat process equipment without requiring auxiliary cooling systems.

• Unified Safety Integration: The SM812K01 integrates seamlessly with PM857, PM863, and PM867 controllers. This modularity allows engineers to add safety-critical layers to existing 800xA infrastructures without replacing the entire control rack, significantly lowering upgrade costs.

• Comprehensive Kit Readiness: By providing the SM812 CPU, the TP868 baseplate, and the synchronization cable in a single part number (3BSE072270R1), ABB eliminates assembly errors and ensures that all components possess matching revision levels for guaranteed compatibility.

FAQ

Q: Which specific firmware version does the SM812K01 require?A: The SM812K01 requires ABB System 800xA version 6.0.2 or later. Using the module with earlier software versions may result in synchronization errors or failure to recognize the SIL3 certification status in the engineering workplace.

Q: Can I use the SM812K01 with a PM865 controller?A: No. This specific module is designed to pair with PM857, PM863, and PM867 controllers. For PM865 or PM866 systems, you should refer to the SM810 or SM811 series processors depending on your redundancy requirements.

Q: Is it necessary to replace the synchronization cable (TK852V10) during a CPU upgrade?A: We highly recommend using the new TK852V10 cable included in the 3BSE072270R1 kit. Using legacy cables can introduce signal noise or impedance mismatches that compromise the SIL3 integrity of the synchronization link.

Q: How does the SM812K01 handle diagnostic faults?A: The module performs continuous self-diagnostics. Upon detecting an internal hardware discrepancy or a synchronization failure, it automatically triggers a safe-state transition, ensuring the plant enters a controlled shutdown or maintains safety via the redundant partner.