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Used in installed AC 800M systems whose approved hardware and software BOM identifies the PM866A processor family. No cross-model substitution is claimed.
ABB PM866AK01 Processor Unit
ABB PM866AK01 processor unit
ABB PLC processor module
PM866AK01 industrial control unit
Brand Name:
ABB
Model Number:
PM866AK01
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Product Details
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ABB PM866AK01 processor unit
,ABB PLC processor module
,PM866AK01 industrial control unit
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Product Description
ABB AC 800M Controller Hardware
PM866AK01 Processor Unit
A single PM866A AC 800M processor kit with 64 MB memory, dual Control Network ports and direct electrical plus optical S800 I/O expansion.
TypeSingle Processor Kit
SystemAC 800M / System 800xA
FocusFast Modular Control
BrandABB
Product Introduction
ABB PM866AK01, article 3BSE076939R1, is a single AC 800M processor kit built around the 133 MHz PM866A CPU. The official package includes the TP830 baseplate, bus terminators and backup battery for a single-controller installation.
Core Specifications
| Model / article number | PM866AK01 / 3BSE076939R1 |
|---|---|
| Package configuration | Single processor kit |
| Processor type / clock | MPC866 / 133 MHz |
| Performance, 1,000 Boolean operations | 0.09 ms |
| Memory | 64 MB |
| Application program cycle time | Down to 1 ms |
| Power supply | 24 VDC; permitted range 19.2–30 VDC |
Installation, Bus Expansion & Package Check
| Single-CPU baseplate | TP830 |
|---|---|
| Control Network | CN1 for a single network; CN1 and CN2 for a redundant network |
| Direct S800 I/O | One electrical ModuleBus cluster, up to 12 modules / 192 signals |
| Additional S800 I/O | Seven optical clusters, within the verified total module limit |
| Communication expansion | CEX-Bus, up to 12 communication interfaces |
| Single-CPU RCU termination | TB852 terminator is required on the RCU-Link connector |
Before ordering, check whether the installed item is the K01 single kit or part of a redundant K02 set. The physical CPU, TP830, terminators, battery and project role all matter.
Configuration & Maintenance Sequence
01Record the installed set
Capture the CPU and TP830 labels, Ethernet address, CEX/ModuleBus layout, battery date and project role.
02Check 24 VDC and ventilation
Verify L+/L−, SA/SB supervision if used, DIN-rail grounding and ABB mounting clearances before power-up.
03Align firmware
Confirm the correct released firmware on the CPU and connected hardware before loading the application.
Applications & Fault Scenarios
Battery maintenance
A battery indication or long power-off period calls for checking the internal lithium battery and any SB821/SB822 external unit.
Network communication loss
Review CN1/CN2 link state, switch ports, Ethernet address records and controller diagnostics before swapping the CPU.
Additional Specifications
| Internal battery backup time | At least 158 hours |
|---|---|
| Ethernet channels | 2 × RJ45 Control Network ports |
| Serial interfaces | COM3 RS-232C, 75–19,200 baud; isolated COM4 service port, 9,600 baud |
| ModuleBus capacity | Up to 96 I/O modules in single-CPU configuration; 84 in redundant configuration |
| Dimensions (W × H × D) | 119 × 186 × 135 mm |
| Operating temperature | 0 to +55 °C (+32 to +131 °F) |
Official Documentation
- ABB — Compact Product Suite Hardware Selector — PM866AK01 Data SheetData sheet dated 2026-02-17 | Article 3BSE076939R1Open official ABB source
- ABB — ABB Ability System 800xA 6.1 — AC 800M Controller Hardware Product Guide3BSE036352-610 A | System version 6.1Open official ABB source
Amikon Service
Commercial supply support, separate from ABB technical documentation.
Straightforward support for maintenance and controller renewal orders.
Identity check
Part number and visible condition reviewed.
Test scope
Available testing stated on the quotation.
Packing & DOA
Protective packing and prompt issue review.
RMA & warranty
Terms confirmed before the order is placed.
Multi-brand Spare Parts Also Requested
XCPBDP00MI-B501AP-IV9907-028NXC1 NetAXS-123eTOP11-0050ML7421B1023ML7425A6008VS-4450EDSC318BRC-H700U1241B/U1242BAE2S-P01
These part numbers are independent purchasing references only. They are not replacements for the product on this page. Compatibility and stock must be confirmed separately for each item.
FAQ
Is PM866AK01 a redundant processor kit?
No. It is the single-processor package; the complete redundant package is identified separately.
Which network ports are available on PM866AK01?
Two 10 Mbit/s RJ45 Control Network ports are provided, with MMS and IAC protocols.
Can PM866AK01 connect S800 I/O directly?
Yes. A single CPU can use one electrical ModuleBus cluster plus seven optical clusters within ABB limits.
What terminator is used on a single PM866AK01 RCU link?
ABB specifies the TB852 RCU-Link terminator for single operation.
How is an empty PM866AK01 commissioned?
Load the correct released firmware through the isolated COM4 service port before downloading the application.
What should be included in a PM866AK01 RFQ?
Provide the part number, quantity, destination, required date, machine/system model, CPU and TP830 labels, software release and I/O/CEX layout.
RFQ for PM866AK01
For a faster technical and commercial check, send the installed-part details before the requested ship date.
Email Miya Zheng- Part Number
- Quantity
- Destination
- Required Date
- Machine / System Model
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