PM861A ABB | AC 800M CPU Processor Module with Redundancy Support
Manufacturer: ABB
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Part Number: PM861A
Condition：New with Original Package
Product Type: AC 800M CPU Processor Module with Redundancy Support
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The ABB PM861A is a high-performance CPU processor unit designed for the AC 800M control system, part of ABB’s System 800xA automation platform.
It executes control logic, manages communication with I/O modules, and interfaces with field devices and supervisory systems.
Its modular and scalable design supports redundancy, making it ideal for high-availability industrial applications.
The module is equipped with Ethernet and RS-232 communication interfaces, supporting distributed control in process automation, power generation, and manufacturing environments.
Included components in the kit ensure seamless integration, such as CEX-bus terminators, ModuleBus terminators, RCU-Link terminator, memory backup battery, baseplate, and power plug.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | PM861A |
| Part Number | 3BSE018158R1 |
| Product Type | CPU Processor Unit / Central Unit |
| System Compatibility | AC 800M, System 800xA |
| Dimensions (L × W × H) | 135 × 186 × 119 mm |
| Weight | 1.2 kg |
| Power Supply | 24 V DC |
| Communication Interfaces | Ethernet, RS-232 |
| Digital Inputs | 8 channels |
| Digital Outputs | 8 channels |
| Analog Inputs | 2 or 4 channels (e.g., for load cells) |
| Analog Outputs | 4 channels (voltage or current) |
| External Power Output | +24 V for external units (max 0.5 A) |
| Redundancy Support | Yes – supports redundant configurations |
| Application Areas | Turbine control, process automation, industrial control systems |
| Battery Type | Lithium (for memory backup) |
| Included Components | Baseplate, terminators, RCU-Link, power plug, memory battery |
FAQ
Q1: What is the ABB PM861A used for?
A1: It serves as the central CPU processor unit for executing control logic in AC 800M and System 800xA.
Q2: Which communication interfaces are supported?
A2: The module includes Ethernet and RS-232 ports for integration with distributed control systems.
Q3: How many digital and analog channels are available?
A3: 8 digital inputs, 8 digital outputs, 2–4 analog inputs, and 4 analog outputs are supported.
Q4: Can the PM861A support redundant configurations?
A4: Yes, it supports redundancy, ensuring high system availability for critical applications.
Q5: What are the physical dimensions and weight?
A5: The processor measures 135 × 186 × 119 mm and weighs approximately 1.2 kg.
Q6: Is the ABB PM861A brand new and ready to ship?
A6: Yes, the module is brand new, factory-sealed, and available from stock.