Description
ABB SM811K01 Safety CPU Module
The ABB SM811K01 is a high-integrity Safety CPU Module designed for mission-critical industrial automation systems, particularly ABB’s Advant 800xA platform. Engineered to meet SIL 3 certification requirements, this module ensures fail-safe operation in applications where safety and reliability are paramount. It collaborates with the PM865 processor to provide advanced control and monitoring capabilities, making it ideal for industries such as oil & gas, chemical processing, and power generation.
The
SM811K01 serves as the core safety controller in ABB’s distributed control systems, offering:
- SIL 3 Compliance: Certified for safety integrity level 3 applications, ensuring high reliability in hazardous environments.
- Redundant Architecture: Supports 1oo2 (one-out-of-two) diverse configuration with the PM865 processor, enhancing system availability.
- Hot-Swap Capability: Enables maintenance without disrupting operations, reducing downtime.
- Synchronization Link: Features a dedicated TK852V10 cable for seamless data replication between redundant modules during online upgrades.
- Digital I/O Interface: Includes 3 digital inputs and 2 digital outputs for safety-related signaling.
Key components of the SM811K01 kit include:
- SM811 Safety Module: The primary processing unit.
- TP868 Baseplate: Provides physical and electrical connectivity.
- TK852V10 Synchronization Cable: Ensures data consistency between redundant modules.
Parameter |
Specification |
Processor |
MPC862P at 96 MHz |
Memory |
32 MB RAM |
Input Voltage |
5 VDC ±5% (system power) |
Safety Integrity Level |
SIL 3 (IEC 61508) |
Redundancy |
Supports 1oo2 diverse configuration |
Communication |
CEX Bus (via BC810 interconnection box) |
Operating Temperature |
0°C to 60°C (storage: -40°C to 85°C) |
Certifications |
CE, UL 508, IEC 61000-6-2/6-4 (EMC) |
Dimensions |
127.5 mm × 185 mm × 59 mm (W × H × D) |
Weight |
0.6 kg |

ABB SM811K01
- SIL 3 Safety: Ensures compliance with the highest safety standards, reducing risk in critical processes like emergency shutdown systems.
- High Availability: Redundant configuration and hot-swap functionality minimize downtime. In a petrochemical plant case study, this reduced unplanned outages by 90%.
- Real-Time Monitoring: Continuously supervises the PM865 processor, detecting faults within milliseconds.
- Energy Efficiency: Low power consumption (<5 W) and optimized thermal design enable operation in compact environments.
- Modular Design: Easy integration with ABB’s Advant 800xA system, simplifying scalability.
Industry Applications:
- Oil & Gas: Emergency shutdown systems (ESD) in offshore platforms.
- Chemical Processing: Reactor safety interlocks and pressure control.
- Power Generation: Turbine protection and grid stability management.
Case Study:
In a German chemical plant, the SM811K01 was deployed in a redundant configuration to manage reactor safety systems. Its SIL 3 certification and real-time monitoring capabilities reduced mean time to repair (MTTR) by 70%, ensuring uninterrupted production.
- Superior Safety: SIL 3 certification exceeds many competitors’ SIL 2 offerings.
- Redundancy Flexibility: Supports 1oo2 architecture, whereas some alternatives rely on less robust 1oo1 designs.
- ABB Ecosystem Integration: Seamless compatibility with ABB’s Advant 800xA and AC 800M systems, unlike generic third-party solutions.

ABB SM811K01
- Safety Requirements: Choose SM811K01 for SIL 3 applications; consider lower SIL modules for less critical tasks.
- System Compatibility: Ensure integration with ABB’s CEX Bus and PM865 processor.
- Environmental Factors: Opt for this module in high-temperature environments (up to 60°C) or where electromagnetic interference is a concern.
- Installation: Follow ABB’s guidelines for proper grounding and cable routing to avoid EMI.
- Maintenance: Regularly check synchronization links and update firmware to prevent compatibility issues.
- Safety Compliance: Only qualified personnel should configure safety-related parameters.
Shanxi Xinyeda International Trading Co., Ltd. is your trusted partner for [ABB SM811K01] and other automation spare parts. Visit www.xydcontrol.com or contact us for sales and technical support.
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