Products Description
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Product Overview – ABB PM866 3BSE050200R1 System 800xA Processor Unit
The ABB PM866 processor unit is a robust, industrial-grade central processing unit designed for the AC 800M control system architecture. It operates as the control brain in both non-redundant and redundant configurations, managing complex industrial automation tasks with high reliability and deterministic control. The unit integrates seamlessly into ABB’s System 800xA for scalable and flexible automation solutions.
This CPU module combines a balance of performance, memory capacity, and communication interfaces, making it ideal for various distributed control applications. The PM866 is often used in sectors such as power generation, oil & gas, chemicals, and process industries.
Technical Parameters
| Parameter | Specification |
|---|---|
| Processor Type | MPC866 Microprocessor, 133 MHz |
| Memory – Flash PROM | 4 MB (for firmware storage) |
| Memory – SDRAM | 64 MB |
| Power Supply Requirements | 24 V DC nominal (19.2 V – 30 V DC range) |
| Current Consumption | 210 mA typical, 360 mA maximum |
| Power Dissipation | 5.1 W typical; 8.6 W including full supply |
| Battery Backup | Internal or External (SB821/SB822) |
| Backup Time (Internal) | Minimum 158 hours |
| Backup Time (SB821) | Minimum 15 weeks |
| Backup Time (SB822) | Minimum 16 days |
| Redundant Power Supply Inputs | SA/SB, 15–30 V DC |
| Communication Ports | 2x Ethernet (10BaseT), 2x RS-232C (COM3/COM4) |
| Compact Flash Interface | Yes (for application and cold retain storage) |
| ModuleBus Support | 12 S800 I/O units (electrical ModuleBus) |
| Protection Rating | IP20 (EN60529/IEC 529) |
| Switch-over Time (Redundant Mode) | < 10 ms |
| Dimensions (W × H × D) | 119 × 186 × 135 mm |
| Weight | 1.2 kg |
Key Features
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High-performance MPC866 microprocessor for fast execution of control logic.
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Equipped with both Ethernet and serial ports for versatile connectivity.
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Designed for use with S800 I/O modules and compatible with the TP830 baseplate.
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Integrated flash and RAM memory, supported by battery backup for memory retention.
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Supports hot-swap configurations in redundant systems.
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Compact Flash slot for firmware and application loading.
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Provides a fast switch-over in redundant configurations under 10 milliseconds.
Advantages
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Reliable Operation: Battery-backed memory with long backup time ensures stability even in power interruptions.
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Fast Execution: 1.4x the performance of its predecessor PM864.
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Modular and Expandable: Allows the connection of up to 12 I/O units and extension interfaces.
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Industrial Compatibility: Compliant with EMC Directive 89/336/EEC.
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Compact Footprint: Fits well within standard DIN-rail enclosures for space-efficient control panels.
Typical Applications
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Distributed Control Systems (DCS) in process industries.
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Power generation and substations.
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Oil and gas field control systems.
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Chemical plant automation.
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High Integrity Safety Instrumented Systems (SIS) when paired with SM810/SM811.
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Factory automation and production lines.
Latest Technical Documentation Title
“Technical Data and Performance Analysis of PM866 and TP830 Controller Units – System 800xA (3BSE036351-510 A)”
Related Models from the Same or Similar Series
| Model | Description | CPU Speed | Memory | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| PM861K01 | Processor Unit with baseplate | 100 MHz | 32 MB SDRAM | 119 × 186 × 135 | 1.2 kg |
| PM864A | Enhanced CPU unit for mid-size control | 133 MHz | 64 MB SDRAM | 119 × 186 × 135 | 1.2 kg |
| PM865 | SIL2 High Integrity CPU module | 133 MHz | 64 MB SDRAM | 119 × 186 × 135 | 1.2 kg |
| PM866K01 | PM866 with TP830 baseplate and bus terminations | 133 MHz | 64 MB SDRAM | 119 × 186 × 135 | 1.2 kg |
| PM891 | High-performance CPU unit | 450 MHz | 256 MB DDR2 | 200 × 186 × 102 | 1.6 kg |
| PM860 | Entry-level CPU for small applications | 48 MHz | 8 MB SDRAM | 119 × 186 × 135 | 1.2 kg |
Recommended Popular ABB Models
| Model | Application Domain | Description | Dimensions (mm) | Weight |
|---|---|---|---|---|
| AI835 | Analog Input Module (S800 I/O) | 8 ch, 0–20 mA or 4–20 mA input | 45 × 119 × 104 | 0.2 kg |
| DO820 | Digital Output Module (S800 I/O) | 16 DO, 24 V DC Source type | 45 × 119 × 104 | 0.2 kg |
| CI854A | PROFIBUS DP Communication Interface | Dual channel DP-V1 master | 87 × 170 × 103 | 0.6 kg |
| CP620 | HMI Controller | Operator interface for AC 800M systems | 150 × 200 × 60 | 1.1 kg |
| PM891 | High-performance CPU for heavy duty use | Max 84 I/O units in clusters | 200 × 186 × 102 | 1.6 kg |
| AC800M HI (SM811) | High Integrity System | For SIL1-3 applications, with safety logic | Varies by module | Varies |
FAQ
FAQ – ABB PM866 3BSE050200R1 Processor Unit
Q1: What type of processor is used in the PM866 unit?
A1: It uses an MPC866 microprocessor running at 133 MHz.
Q2: How much memory does the PM866 offer?
A2: The unit includes 4 MB flash PROM for firmware and 64 MB SDRAM.
Q3: Is the PM866 suitable for redundant configurations?
A3: Yes, it supports redundancy via the Redundancy Control Link (RCU).
Q4: How fast is the switchover in redundant mode?
A4: Switchover time is less than 10 milliseconds.
Q5: What are the communication ports available on PM866?
A5: It includes two Ethernet ports (CN1, CN2) and two RS-232C serial ports (COM3, COM4).
Q6: What are the physical dimensions and weight of the unit?
A6: The dimensions are 119 × 186 × 135 mm, and it weighs 1.2 kg.
Q7: Does PM866 include onboard data storage?
A7: Yes, it supports a Compact Flash interface for application and retain memory storage.
Q8: What I/O modules are compatible with the PM866?
A8: It supports up to 12 S800 I/O modules directly via the electrical ModuleBus.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
