ABB PM864AK02-eA Processor Unit | Replacement, Equivalent & Selection Guide
The ABB PM864AK02-eA is a high-performance processor unit designed for the ABB AC 800M distributed control system (DCS) platform. As a core CPU module, it handles real-time process control, communication management, and program execution in demanding industrial automation environments. This page provides full technical specifications, compatible replacement options, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Part Number | PM864AK02-eA |
| Product Family | AC 800M (Advant Controller 800M) |
| Module Type | Processor Unit (CPU) |
| Processor | PowerPC-based, 266 MHz |
| RAM | 64 MB SDRAM |
| Flash Memory | 32 MB |
| Communication Ports | 2 × Ethernet (10/100 Mbps), 1 × RS-232 |
| Supported Protocols | PROFIBUS, FOUNDATION Fieldbus, Modbus, OPC, IEC 61850 |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | 5–95% RH (non-condensing) |
| Power Supply | 24 VDC (via backplane) |
| Dimensions (W×H×D) | Approx. 40 × 235 × 230 mm |
| Weight | Approx. 300 g |
| Certifications | CE, UL, ATEX (zone 2 with appropriate housing) |
| Firmware | Compatible with Control Builder M Professional |
Compatible Replacement & Equivalent Models
When the PM864AK02-eA is unavailable or end-of-life, the following models are commonly evaluated as replacements. Always verify firmware compatibility and I/O mapping before substitution.
| Model | Manufacturer | Compatibility Notes |
|---|---|---|
| PM864AK01-eA | ABB | Earlier hardware revision; functionally equivalent, verify firmware version |
| PM866AK02-eA | ABB | Upgraded successor with enhanced memory; drop-in compatible in most AC 800M racks |
| PM891 | ABB | Next-generation AC 800M CPU; requires Control Builder M v6.0+ |
| PM864 | ABB | Base variant without extended memory suffix; confirm exact BOM before ordering |
| 6ES7 315-2EH14-0AB0 | Siemens | SIMATIC S7-300 CPU; cross-platform migration only, requires full re-engineering |
| 1756-L73 | Allen-Bradley | ControlLogix platform; cross-platform migration only |
Note: Cross-platform replacements require full system re-engineering. Konmask recommends ABB-native replacements for minimal downtime.
Why Choose the Original Model
- Seamless Integration: PM864AK02-eA is natively supported by ABB Control Builder M, eliminating re-configuration risk.
- Proven Reliability: Deployed in thousands of power, oil & gas, and chemical plants worldwide with documented MTBF exceeding 100,000 hours.
- Redundancy Support: Supports hot-standby CPU redundancy with automatic bumpless transfer.
- Fieldbus Flexibility: Native support for PROFIBUS DP, FOUNDATION Fieldbus H1, and Modbus RTU/TCP without additional gateways.
- Long Service Life: ABB provides extended lifecycle support and spare parts availability for AC 800M platform through 2030+.
Typical Applications
- Power generation and distribution control (turbine governors, boiler management)
- Oil & gas upstream/downstream process control
- Chemical and petrochemical batch and continuous process control
- Pulp and paper mill automation
- Water and wastewater treatment plant SCADA integration
- Marine and offshore platform automation
- Pharmaceutical manufacturing (21 CFR Part 11 compliant configurations)
System Compatibility
- DCS Platform: ABB AC 800M (all rack variants: TB820, TB840, TB842)
- Software: Control Builder M Professional v4.x – v6.x
- I/O Modules: Compatible with all S800 I/O modules (AI810, AO810, DI810, DO810, etc.)
- Communication Modules: CI854 (PROFIBUS), CI856 (FF H1), CI858 (DNP3), CI860 (FF HSE)
- Redundancy: Supports 1:1 CPU redundancy with SC520 or SC522 synchronization cables
- HMI: Compatible with ABB 800xA, Freelance, and third-party OPC DA/UA clients
Selection Guide
Use the following criteria to determine whether PM864AK02-eA is the right choice for your project:
| Requirement | Recommended Model |
|---|---|
| Standard AC 800M replacement, same hardware generation | PM864AK02-eA ✓ |
| Need higher memory capacity (>64 MB RAM) | PM866AK02-eA or PM891 |
| New project with latest ABB firmware support | PM891 (AC 800M next-gen) |
| Budget-constrained, older firmware environment | PM864AK01-eA (verify availability) |
| Cross-platform migration to Siemens TIA Portal | Consult Konmask engineering team |
Quality Assurance & Sourcing
- Authenticity: All ABB modules supplied by Konmask are sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Testing: Each unit undergoes functional power-on testing and visual inspection before shipment.
- Warranty: 12-month warranty against manufacturing defects; replacement or refund guaranteed.
- Packaging: ESD-safe anti-static packaging with shock-absorbing foam inserts.
- Documentation: Original ABB datasheet, test report, and certificate of conformity included on request.
- Lead Time: In-stock units ship within 1–3 business days; ex-stock orders within 7–14 business days.
How to Order
- Confirm your exact part number: PM864AK02-eA (check nameplate on existing module).
- Specify quantity and required delivery date.
- Contact Konmask via email or phone for a formal quotation (RFQ).
- Receive proforma invoice; confirm payment terms (T/T, L/C, or PayPal for small orders).
- Module ships with tracking number and commercial invoice for customs clearance.
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Replacement & Compatibility FAQ
Q: Can PM866AK02-eA directly replace PM864AK02-eA without reprogramming?
A: In most cases yes — the PM866 is backward compatible with PM864 application programs. However, verify that your Control Builder M version supports PM866 and re-download the application after hardware swap.
Q: Is PM864AK02-eA still in production?
A: ABB has transitioned to PM891 for new projects. PM864AK02-eA is available as a spare/replacement part through authorized channels including Konmask.
Q: Can I use a refurbished PM864AK02-eA in a safety-critical SIL application?
A: Only new, certified units should be used in SIL 1/2 applications. Contact Konmask for new-in-box availability and SIL certification documentation.
Q: What is the difference between PM864AK01-eA and PM864AK02-eA?
A: The K02 revision includes updated firmware ROM and minor hardware improvements for EMC compliance. Functionally equivalent for most applications.
Q: Do you provide installation and commissioning support?
A: Konmask provides remote technical support for module swap procedures. On-site commissioning can be arranged through our partner network.
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Contact: [email protected] | +0086 19859288691
