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+86 18030182217
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Description
Product Core Brief
- Model: ABB PM861AK02 (3BSE018160R1)
- Brand: ABB (Sweden)
- Series: AC800M High-Performance Controller Series
- Core Function: Redundant process control CPU for high-availability DCS applications. Condition: New Surplus, not refurbished.
- Type: Controller Module (CPU)
- Key Specs: 16 MB RAM | Redundancy Supported (Primary/Backup) | Profibus DP / Modbus TCP
⚠️ Obsolete model, limited stock available.
Product Introduction
The ABB PM861AK02 (3BSE018160R1) serves as the central processing unit for the AC800M series, engineered specifically for redundant control architectures in critical DCS environments. It manages complex logic execution and communication handling for industries like oil & gas, power generation, and pulp & paper where uptime is non-negotiable.Unlike standard single CPUs, this module supports hot-swappable redundancy, ensuring seamless failover if the primary unit faults. Its value lies in extending the lifecycle of existing AC800M installations where newer models may require costly system-wide upgrades. By sourcing verified surplus units, plants maintain operational continuity without the lead time penalties of obsolete OEM orders.
Key Technical Specifications
| Parameter Name | Specification Value |
|---|---|
| Part Number | 3BSE018160R1 |
| Processor Type | 32-bit RISC |
| Memory Capacity | 16 MB RAM, 8 MB Flash (User) |
| Redundancy | Yes (Hot Standby supported) |
| Communication Ports | 2x Ethernet (CN1, CN2), 1x Serial (RS-232/485) |
| Supported Protocols | Modbus TCP, Profibus DP-V1 (with CI85x), Ethernet/IP |
| Power Consumption | Approx. 5.5 W at 5 V DC |
| Operating Temp | -20°C to +70°C |
| Mounting | DIN Rail or S800 I/O Bus interface |
| Firmware Compatibility | ControlIT / Automation Builder (Verify version) |
| Dimensions | 135 mm x 105 mm x 110 mm |
| Weight | Approx. 0.6 kg |
Recommended Spares & Stocking Advice
As a Spare Parts Inventory Manager, I classify the PM861AK02 as an A-Class Critical Item due to its role as the system brain and its obsolete status. The risk of a stock-out here translates directly to total plant downtime.表格
| Spare Part Name | Model | Recommended Qty | Purchasing Notes | Est. Lead Time |
|---|---|---|---|---|
| Redundant CPU Module | PM861AK02 (3BSE018160R1) | 2 Units (Min) | Critical Buffer Stock. Must verify firmware version compatibility with existing site license. Purchase from suppliers offering full QC test reports. | 4–10 Weeks (Surplus Market) |
| Power Supply Module | PM865 / TP830 | 1 Unit | Shared resource for the CPU rack. Ensure voltage rating matches site specs (24 V DC). | 2–4 Weeks |
| Communication Module | CI854AK01 (Profibus) | 1 Unit | If your setup uses Profibus DP, keep a spare. Pinout configurations vary. | 3–6 Weeks |
| Battery Kit | 3BSE020518R1 | 2 Units | Maintains RAM during power loss for non-flash projects. Check expiration dates on surplus stock. | 1–2 Weeks |
| SD Memory Card | Industrial Grade (4 GB) | 1 Unit | For project backups and firmware storage. Ensure industrial temp rating. | Immediate |
Strategic Note: Do not rely on “just-in-time” delivery for this specific model. The lead time variability in the surplus market is high. I recommend executing a last-time-buy analysis if you operate multiple sites; consolidating demand to purchase 3–5 units now often yields a lower total cost of ownership than emergency procurement later. Always request a firmware version check before shipment to avoid the “rookie mistake” of installing a V3.x module into a V2.x system without a downgrade plan.
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