The 3BHB004791R0101 leverages its dual-core architecture to execute control logic, PID loops, and safety algorithms concurrently, making it ideal for high-speed packaging lines or fast-reacting chemical processes. Its optional dual-processor redundancy ensures zero downtime in critical applications like offshore platform control systems, where a primary processor failure triggers an instantaneous failover to the standby unit without disrupting operations.
Advanced Cybersecurity and Connectivity
Built-in secure boot and AES-256 encryption protect against unauthorized firmware tampering and data breaches, critical for modern industrial networks facing rising cyber threats. The module’s dual Ethernet ports support PROFINET and Ethernet/IP, enabling seamless integration with third-party devices like Rockwell PLCs or Siemens drives. In a smart factory setting, this connectivity allows real-time data exchange with MES systems, optimizing production workflows and enabling predictive maintenance via ABB’s Ability™ analytics platform.
Scalability and Ease of Use
The module’s modular design supports incremental system expansion, allowing engineers to add I/O racks or communication gateways as production needs evolve. ABB’s Control Builder M software simplifies configuration, with drag-and-drop functionality for creating control strategies and built-in diagnostics for rapid troubleshooting. For example, in a pharmaceutical plant, the 3BHB004791R0101 can manage sterilization cycles, HVAC systems, and batch processing controls from a single unified interface, reducing programming time by 40% compared to legacy systems.
Manufacturer: ABB Part number: ABB 3BHB004791R0101
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The ABB 3BHB004791R0101 is a high-performance control processor module designed for ABB’s AC 800M distributed control system (DCS), serving as the computational core for industrial automation and process control. As part of the PM866 series, this module integrates advanced processing capabilities with robust connectivity, enabling real-time data handling, logic execution, and system coordination in complex industrial environments. The 3BHB004791R0101 is engineered to manage critical control loops, safety interlocks, and communication protocols in industries such as oil & gas, power generation, and manufacturing, where reliability and precision are non-negotiable.
Featuring a dual-core ARM processor and 256 MB RAM, the module delivers deterministic performance with sub-millisecond cycle times, ensuring seamless coordination between I/O modules, drives, and human-machine interfaces (HMIs). Its hot-swappable design and redundant power supply support minimize downtime during maintenance, while the 3BHB004791R0101 firmware includes built-in cybersecurity features like secure boot and encrypted data transmission, compliant with IEC 62443 standards. Positioned as a scalable solution, the module supports up to 1,000 I/O points and integrates with ABB’s 800xA software platform, enabling engineers to design, simulate, and commission control strategies with unmatched efficiency.
Technical Specifications
Parameter Name
Parameter Value
Product Model
3BHB004791R0101
Manufacturer
ABB
Product Type
Control Processor Module (DCS Core)
Processor
Dual-core ARM Cortex-A9 @ 800 MHz
Memory
256 MB RAM, 512 MB Flash
I/O Capacity
Up to 1,000 I/O points (via S800 I/O racks)
Communication Interfaces
2 x Ethernet (10/100 Mbps), 2 x USB 2.0, Profibus DP
The 3BHB004791R0101 leverages its dual-core architecture to execute control logic, PID loops, and safety algorithms concurrently, making it ideal for high-speed packaging lines or fast-reacting chemical processes. Its optional dual-processor redundancy ensures zero downtime in critical applications like offshore platform control systems, where a primary processor failure triggers an instantaneous failover to the standby unit without disrupting operations.
Advanced Cybersecurity and Connectivity
Built-in secure boot and AES-256 encryption protect against unauthorized firmware tampering and data breaches, critical for modern industrial networks facing rising cyber threats. The module’s dual Ethernet ports support PROFINET and Ethernet/IP, enabling seamless integration with third-party devices like Rockwell PLCs or Siemens drives. In a smart factory setting, this connectivity allows real-time data exchange with MES systems, optimizing production workflows and enabling predictive maintenance via ABB’s Ability™ analytics platform.
Scalability and Ease of Use
The module’s modular design supports incremental system expansion, allowing engineers to add I/O racks or communication gateways as production needs evolve. ABB’s Control Builder M software simplifies configuration, with drag-and-drop functionality for creating control strategies and built-in diagnostics for rapid troubleshooting. For example, in a pharmaceutical plant, the 3BHB004791R0101 can manage sterilization cycles, HVAC systems, and batch processing controls from a single unified interface, reducing programming time by 40% compared to legacy systems.
3BHB004791R0101
Application Field
The ABB 3BHB004791R0101 is indispensable in industries requiring centralized, high-performance control:
Oil and Gas: Manages upstream wellhead control, midstream pipeline monitoring, and downstream refinery processes. In a liquefied natural gas (LNG) plant, the module coordinates compressor control, temperature regulation, and safety shutdowns, ensuring compliance with API standards and minimizing methane emissions.
Power Generation: Controls steam turbines, boiler systems, and grid interconnections in thermal, hydro, and renewable energy plants. For a wind farm, it optimizes turbine pitch control and power conversion, adapting to fluctuating wind speeds while maximizing energy yield.
Food and Beverage: Orchestrates complex batch processes in breweries, dairies, and meat processing facilities. The module’s precise timing and recipe management capabilities ensure consistent product quality, such as maintaining exact pasteurization temperatures in juice production lines to meet FDA requirements.
Mining and Metals: Drives automation in mineral processing, smelting, and material handling systems. In a copper mine, it controls conveyor speeds, crusher loads, and flotation cell parameters, improving ore recovery rates by 5–8% through real-time process optimization.
Related Products
ABB 3BHB004790R0101: A single-core variant with reduced memory, suitable for small-scale control systems in HVAC or packaging applications.
ABB PM866AK01: A higher-performance model with 1 GB RAM, designed for large-scale DCS projects in petrochemical plants or automotive assembly lines.
ABB S800 I/O Modules (e.g., DSAI146, DSQC652): Complementary I/O units that expand the module’s analog/digital signal processing capabilities.
ABB CI522: A Profibus DP interface module, enhancing connectivity in hybrid fieldbus networks.
ABB TB532: A terminal block accessory for secure field wiring, compatible with the module’s I/O extensions.
Installation and Maintenance
Pre-installation preparation: Mount the 3BHB004791R0101 in an AC 800M control cabinet, ensuring proper grounding and ventilation (airflow ≥1 m/s). Connect power cables to the redundant power supply units and terminate Ethernet/Profibus cables using shielded patch cords. Use Control Builder M to configure the module’s IP address, redundancy settings, and I/O mapping, verifying compatibility with existing network switches and safety systems.
Maintenance recommendations: Perform quarterly visual inspections to check for loose connections or overheating (monitored via built-in temperature sensors). In dusty environments (e.g., cement plants), clean the cabinet filters monthly to prevent thermal throttling. Update firmware annually via ABB’s Software Manager to incorporate security patches and new features, such as enhanced OPC UA server capabilities. For redundant systems, test failover functionality biannually by simulating a processor fault to ensure seamless switching.
Product Guarantee
ABB stands behind the 3BHB004791R0101 with a 5-year warranty, reflecting confidence in its industrial-grade durability and cybersecurity resilience. ABB’s global service network provides 24/7 remote diagnostics and on-site support, with average response times under 4 hours for critical failures. The module undergoes rigorous testing, including 10,000-hour load cycles and EMC compliance testing, to ensure adherence to ISO 9001 standards. For customers in regulated industries, ABB offers Functional Safety Certification Packages (SIL 2/3), providing third-party validation for safety-critical applications like emergency shutdown systems. By combining processing power, scalability, and advanced security, the 3BHB004791R0101 sets the standard for next-generation DCS control modules.
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