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- ABB
- PM861AK01
- Processor Unit AC 800M Industrial Control Module
- Sweden
- 98 mm × 186 mm × 130 mm
- 0.38kg
- 3BSE018157R1
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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Product Overview: ABB PM861AK01 (3BSE018157R1)
The PM861AK01 is a high-performance Processor Unit (CPU module) used in Distributed Control Systems (DCS). It is part of the AC 800M series, widely adopted in process automation across industries such as oil & gas, chemical, power, marine, and manufacturing.
It integrates seamlessly with the Control Builder engineering environment and provides redundant and non-redundant configurations. The PM861AK01 includes the PM861 processor, Battery Unit, and CompactFlash memory card, making it a ready-to-install solution.
📐 Technical Specifications of PM861AK01
| Parameter | Specification |
|---|---|
| Product Code | 3BSE018157R1 |
| Processor Type | 32-bit RISC processor |
| Clock Speed | 100 MHz |
| Memory Type | 16 MB RAM, 4 MB Flash |
| Redundancy | Supports CPU redundancy |
| I/O Capacity | Up to 1,000 I/O modules |
| Communication Ports | 2 x Ethernet, 1 x Serial, 1 x Service port |
| Fieldbus Support | PROFIBUS, MODBUS, IEC 61850, FOUNDATION Fieldbus |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +70°C |
| Protection Rating | IP20 |
| Mounting | DIN rail |
| Weight | 0.38 kg |
| Dimensions (W x H x D) | 98 mm × 186 mm × 130 mm |
| Power Supply Voltage | 24 V DC |
| Power Consumption | ≤ 5 W |
| Certifications | CE, UL, CSA, RoHS, ATEX, SIL2/3 (depending on config) |
🏭 Product Applications
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Process Automation in refineries and petrochemical plants
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Power Generation systems including turbines and substation control
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Marine and Offshore automation platforms
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Pharmaceutical production lines requiring precision control
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Food & Beverage automated packaging and batch control
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Mining and Metals process regulation and safety systems
⭐ Product Advantages
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Scalable Design: Easily upgrade from single to redundant CPU configurations
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High Reliability: Designed for 24/7 operation in critical environments
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Fast Processing: RISC-based architecture ensures high-speed execution
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Integration Friendly: Supports multiple industrial communication protocols
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Modular Engineering: Part of the AC 800M modular controller family
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Hot Swap Support: Enables module replacement without system shutdown
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Compact & Rugged: DIN-rail mountable with durable IP20 housing
🏷️ Brand: ABB
🧩 Series: AC 800M Controller Series
🔁 5 Related Models from the Same Series
| Model | Description | Processor | Memory | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| PM862AK01 | Redundant-capable CPU with higher I/O cap. | 200 MHz | 32 MB RAM / 8 MB Flash | 98 × 186 × 130 | 0.40 |
| PM864AK01 | Enhanced CPU for larger process loads | 266 MHz | 64 MB RAM / 16 MB Flash | 98 × 186 × 130 | 0.42 |
| PM865AK01 | Dual processor for fault-tolerant systems | Dual 300 MHz | 128 MB RAM / 16 MB Flash | 98 × 186 × 130 | 0.45 |
| PM866AK02 | Advanced CPU with high performance | 300 MHz | 128 MB RAM / 32 MB Flash | 98 × 186 × 130 | 0.48 |
| PM867AK01 | High-end model with full redundancy | 400 MHz | 256 MB RAM / 64 MB Flash | 98 × 186 × 130 | 0.50 |
🔝 5 Popular Models from the Same Brand
| Model | Description | Application | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| CI854AK01 | PROFIBUS DP interface module | Fieldbus communication | 98 × 186 × 130 | 0.36 |
| AI810 | Analog input module, 8 channels | Process sensing | 98 × 186 × 130 | 0.28 |
| AO810 | Analog output module, 8 channels | Valve & actuator control | 98 × 186 × 130 | 0.28 |
| DI810 | Digital input module, 16 channels | Sensor signal acquisition | 98 × 186 × 130 | 0.25 |
| DO810 | Digital output module, 16 channels | Relay & device actuation | 98 × 186 × 130 | 0.25 |
❓ Frequently Asked Questions (FAQ)
Q1: What is the main function of the PM861AK01?
A1: It serves as the central processor in the AC 800M system, managing control logic, communication, and data processing.
Q2: Does PM861AK01 support redundancy?
A2: Yes, it supports redundant CPU operation when configured with a second PM861AK01 and redundancy accessories.
Q3: Is PM861AK01 compatible with all AC 800M I/O modules?
A3: Yes, it is compatible with S800 and S800L I/O modules.
Q4: Can the CompactFlash card be replaced in the field?
A4: Yes, the CompactFlash card is field-replaceable and stores the controller firmware and application.
Q5: How is PM861AK01 mounted?
A5: It is mounted on a standard DIN rail and requires a baseplate unit.
Q6: What software is used to program the PM861AK01?
A6: It is programmed using Control Builder M within the 800xA engineering suite.
Q7: Is hot-swapping supported?
A7: Yes, modules can be replaced while the system remains powered and running.
Q8: What type of communication protocols are supported?
A8: It supports Ethernet, MODBUS, PROFIBUS, and FOUNDATION Fieldbus via expansion modules.
Q9: Is the CPU module certified for safety-critical applications?
A9: Yes, it can be used in SIL2/3 applications depending on the configuration.
Q10: What happens if the CPU fails during operation?
A10: In a redundant configuration, the backup CPU takes over immediately to prevent downtime.
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Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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