Excellent PLC
| Company Information | ||||||||
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Description
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
| Parameter | Value |
|---|---|
| Processor | MPC866 Microprocessor, 133 MHz |
| Memory | 64 MB RAM, 4 MB Flash PROM (firmware) |
| Power Supply | 24 V DC (19.2–30 V DC) |
| Power Consumption | Typ. 160 mA / Max. 250 mA @ 24V |
| Power Dissipation | 3.8 W |
| Digital I/O Ports | 3 digital inputs, 2 digital outputs |
| Operating Temperature | +5 to +55 °C |
| Storage Temperature | -40 to +70 °C |
| Humidity | 5–95% non-condensing |
| Protection Class | IP20 |
| Redundancy | Supported (hot-insert & sync link) |
| Dimensions (W×H×D) | 59 × 186 × 127.5 mm |
| Weight | 0.7 kg |
| Certifications | CE, TUV, UL, cULus Zone 2, RoHS, WEEE |
| Marine Approvals | ABS, BV, DNV-GL (Lloyd pending) |
Applications
-
High Integrity (SIL3) process control
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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
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Supports redundant operation for high availability
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Wide operating temperature and industrial certifications
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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.
Related Models (Same Series or Relevant)
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| PM857 | HI CPU for 800xA | 59×186×127.5 | 0.65 |
| PM863 | HI CPU with extended memory | 59×186×127.5 | 0.65 |
| PM867 | HI CPU, SIL3 certified | 59×186×127.5 | 0.65 |
| SM811 | HI controller, SIL2 | 59×186×127.5 | 0.65 |
| AC800M | Standard controller for 800xA | 59×186×127.5 | 0.65 |
| AC800M HI | High Integrity version of AC800M | 59×186×127.5 | 0.65 |
Popular ABB Models
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| CI854A | Profibus DP Module | 45×130×120 | 0.25 |
| AI810 | Analog Input Module | 45×130×120 | 0.20 |
| AO810 | Analog Output Module | 45×130×120 | 0.20 |
| DI810 | Digital Input Module | 45×130×120 | 0.20 |
| DO810 | Digital Output Module | 45×130×120 | 0.20 |
| PM864 | CPU for 800xA | 59×186×127.5 | 0.65 |
