Product Details
Description
The PM851A 3BSE066484R1 processor module offers a cost-effective, high-performance solution for process control. With a 32-bit RISC architecture and 8 MB of RAM, it efficiently handles control loops and discrete logic. It features dual Ethernet ports for networking and an integrated ModuleBus for high-speed synchronization with local S800 I/O clusters. Designed for industrial reliability, it uses passive cooling and a fanless housing to ensure durability in factory environments.
Specifications
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Manufacturer: ABB
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Series: AC 800M
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Model Number: PM851A
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Order Number: 3BSE066484R1
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Product Type: Processor Unit
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Microprocessor: 32-bit RISC
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Onboard RAM: 8 MB
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Onboard Flash: 4 MB
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Dimensions: 186 mm x 119 mm x 135 mm
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Weight: 1.15 kg
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Interfaces: 2x RJ45 Ethernet, 2x RS-232, 1x ModuleBus
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Nominal Voltage: 24 V DC (19.2 - 30 V DC)
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Mounting: 35mm Standard DIN rail
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Protection Rating: IP20
Features
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Efficient Processing Core: Utilizes a specialized 32-bit architecture to ensure consistent execution times for critical regulatory control strategies.
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Integrated Ethernet Support: Built-in dual ports allow for versatile network topologies and reliable connectivity to supervisory HMI systems.
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Local I/O Connectivity: Features a high-speed ModuleBus link for direct, low-latency interfacing with S800 I/O expansion modules.
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Redundant Power Input: Designed with dual power terminals to enhance system availability and protect against local power supply failures.
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Compact Modular Design: Optimized for vertical mounting on DIN rails, facilitating easy integration into space-constrained control enclosures.
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Industrial Safety Integrity: Includes mechanical safety keying to ensure correct seating on baseplates and protection of the internal bus system.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Master Acceptance Testing: Understanding FAT and SAT in Industrial Control Systems
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.
Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.