The ABB SM812 High Integrity (HI) controller is part of the ABB Ability™ System 800xA platform, designed for safety-critical applications up to SIL3. It supervises PM857, PM863, and PM867 CPUs during SIL1-2 operations and, in redundant 1oo2 configuration, provides SIL3 compliance. It supports hot swap, redundancy, and seamless upgrades with a dedicated synchronization link.

Technical Specifications

Applications

• High Integrity (SIL3) process control

• Safety Instrumented Systems (SIS) in oil & gas, chemicals, power

• Redundant safety supervision in mission-critical industries

• Marine and hazardous environment control systems

Advantages

• Fully SIL3-compliant in 1oo2 configuration

• Hot swap and online upgrade capabilities

• Supports redundant operation for high availability

• Wide operating temperature and industrial certifications

• Compact design with minimal power consumption

FAQ

Q1: What is the primary function of the SM812?

A1: To supervise PM857, PM863, and PM867 CPUs and enable SIL3 safety in redundant configurations.

Q2: Does the SM812 support redundancy?

A2: Yes, it can operate as part of a redundant pair with hot-insert and online upgrade support.

Q3: What type of processor does it use?

A3: The SM812 uses an MPC866 microprocessor running at 133 MHz.

Q4: Can the SM812 operate in hazardous locations?

A4: Yes, it is certified for Class 1, Zone 2 environments.

Q5: What is the power supply requirement?

A5: It operates on 24 V DC (range 19.2–30 V DC).

Q6: Is it compatible with System 800xA?

A6: Yes, it is specifically designed for ABB Ability™ System 800xA.

Q7: What safety level does it achieve?

A7: SIL1-2 in standalone mode and SIL3 in 1oo2 redundant mode.

Q8: Does it support marine applications?

A8: Yes, it has ABS, BV, and DNV-GL certifications for marine use.

Q9: How much memory does it have?

A9: It comes with 64 MB RAM and 4 MB Flash PROM for firmware.

Q10: What are its dimensions and weight?

A10: Dimensions are 59 × 186 × 127.5 mm and weight is 0.7 kg.