Product Overview
The ABB 3BHB004661R0001 KUC711AE is a high-performance central processing unit(CPU)module designed for the ABB AC 800M programmable logic controller(PLC)platform—a cornerstone of ABB’s industrial automation and distributed control system(DCS)offerings.As part of the widely deployed AC 800M family,the ABB 3BHB004661R0001 KUC711AE delivers deterministic real-time control,robust communication capabilities,and scalable architecture suitable for applications ranging from discrete manufacturing to continuous process industries such as power generation,water treatment,and oil&gas.This module integrates a powerful 32-bit RISC processor,onboard memory,and dual communication interfaces—including 10/100 Mbps Ethernet and Profibus DP—enabling seamless connectivity to I/O modules,operator stations,engineering tools,and higher-level enterprise systems.
Positioned as a versatile yet reliable control engine,the ABB 3BHB004661R0001 KUC711AE supports both standalone and redundant configurations when paired with the KUC751AE redundancy module,making it suitable for applications requiring high availability.It runs ABB’s proprietary real-time operating system optimized for cyclic execution down to 1 ms,ensuring precise timing for motion coordination,interlocking logic,and regulatory control loops.The module is fully programmed and monitored via Control Builder M,ABB’s integrated engineering environment,which supports IEC 61131-3 languages,structured application design,and online diagnostics.With its compact form factor,wide operating temperature range,and compliance with international EMC and safety standards,the ABB 3BHB004661R0001 KUC711AE remains a trusted choice for modernizing legacy systems or deploying new automation infrastructures where performance,longevity,and vendor support are critical.
Technical Specifications
Parameter Name Parameter Value
Product Model 3BHB004661R0001 KUC711AE
Manufacturer ABB
Product Type AC 800M CPU Controller Module
Processor 32-bit RISC,100 MHz
Program Memory 8 MB Flash
Data Memory 8 MB RAM
Cycle Time As low as 1 ms(application-dependent)
Communication Interfaces 1×Ethernet(10/100 Mbps,TCP/IP),1×Profibus DP(up to 12 Mbps)
Redundancy Support Yes(with KUC751AE redundancy module)
Hot-Swap Capability Yes(in supported AC 800M rail systems)
Operating Temperature 0°C to+60°C
Power Consumption Approx.5 W
Mounting DIN rail in AC 800M baseplate(e.g.,TK801V001)
Safety Certification Suitable for SIL2 applications per IEC 61508(system implementation dependent)
Main Features and Advantages
Integrated multi-protocol communication:The KUC711AE eliminates the need for separate communication modules by embedding both Ethernet and Profibus DP ports directly on the CPU.This simplifies system architecture,reduces cost,and accelerates integration with ABB drives(via AC 800M DriveBus),remote I/O(e.g.,S800),third-party devices,and SCADA systems using Modbus TCP or OPC.
Real-time deterministic performance:Engineered for demanding control tasks,the KUC711AE executes logic with microsecond-level precision,supporting fast-response applications such as boiler combustion control,conveyor synchronization,or pump sequencing.Its multitasking OS allows concurrent execution of control,communication,and diagnostic routines without performance degradation.
Seamless engineering experience:Fully supported in Control Builder M,the KUC711AE benefits from advanced features like automatic code generation,version management,online change download,and comprehensive diagnostics—including module status,communication errors,and program scan time monitoring.This reduces engineering effort and shortens commissioning timelines.
High availability through redundancy:When configured with the KUC751AE redundancy controller,the KUC711AE enables bumpless switchover in under 20 ms upon primary CPU failure—critical for uninterrupted operation in power plants or chemical reactors.Redundancy covers not only the CPU but also communication links and I/O data.
Robust industrial design:The KUC711AE is built to withstand electrical noise,vibration,and temperature fluctuations common in industrial settings.Its conformal-coated PCB and gold-plated connectors enhance long-term reliability,while the compact width(40 mm)conserves panel space in dense control cabinets.
Application Field
The KUC711AE is extensively used across industries that require reliable,scalable,and future-proof automation control.In thermal and hydroelectric power plants,it executes turbine governor logic,generator synchronization,and auxiliary system interlocks—often in redundant pairs to ensure grid stability.Its fast cycle times and Profibus integration make it ideal for coordinating boiler feedwater pumps,damper actuators,and soot blowers in real time.
In municipal water and wastewater facilities,the KUC711AE manages lift station controls,clarifier sludge scrapers,UV disinfection systems,and chemical dosing skids.Ethernet connectivity enables remote monitoring via web servers or integration with city-wide SCADA networks,while its modular I/O support accommodates analog sensors(pH,flow)and digital valve feedback.
Within manufacturing and process industries,including food&beverage,pulp&paper,and mining,the KUC711AE drives packaging lines,dryer section controls,and conveyor belt logic.Its ability to handle both discrete logic and analog loops within a single program streamlines machine control architecture.Additionally,in brownfield upgrades,the KUC711AE often replaces obsolete PLCs(e.g.,MOD 300 or Bailey INFI 90)while reusing existing field wiring through ABB’s S800 I/O,significantly lowering migration costs.
Across all these domains,the KUC711AE delivers the blend of performance,openness,and lifecycle support that defines ABB’s automation philosophy—making it a strategic asset for operators seeking decades of dependable service.
Related Products
KUC751AE:Redundancy controller module that enables 1oo2 hot-standby configuration with the KUC711AE
TK801V001:Standard AC 800M baseplate for mounting the KUC711AE and I/O modules
CI854A:Additional Profibus DP communication module for expanded fieldbus connectivity beyond the KUC711AE’s built-in port
CI864:Foundation Fieldbus H1 interface module,often used alongside the KUC711AE in process plants
PM864A:Higher-end AC 800M CPU with more memory and faster processing,serving as an upgrade path from the KUC711AE
S800 I/O Modules:Remote I/O family(e.g.,AI810,DI810)commonly controlled by the KUC711AE over Profibus or Ethernet
Control Builder M:ABB’s engineering software required for programming,configuring,and diagnosing the KUC711AE
Installation and Maintenance
Pre-installation preparation:Before installing the KUC711AE,ensure the AC 800M baseplate(e.g.,TK801V001)is securely mounted on a grounded DIN rail and that ambient conditions meet the 0–60°C operating range.Verify that the power supply module(e.g.,SA811)provides stable 24 V DC with sufficient current capacity.Confirm network settings(IP address,subnet mask)and Profibus node ID in advance to avoid post-installation reconfiguration.Always handle the KUC711AE with ESD precautions and insert it firmly into the baseplate until the locking clip engages.
Maintenance recommendations:The KUC711AE requires no routine calibration but should be monitored via Control Builder M for CPU load,memory usage,and communication error counters.Perform periodic firmware backups and store them in secure version-controlled repositories.If the module fails,replace it with a unit of identical hardware revision;after installation,restore the application program and verify I/O mapping.Avoid exposing the KUC711AE to condensation or conductive dust,as its IP20 rating assumes installation within a sealed enclosure.For redundant systems,test failover functionality annually under controlled conditions to validate switchover integrity.
Product Guarantee
Every 3BHB004661R0001 KUC711AE we provide is either brand-new original from ABB or a premium refurbished unit that has undergone full functional validation—including boot-up diagnostics,Ethernet/Profibus communication tests,and memory integrity checks.We guarantee compatibility with all standard AC 800M hardware and Control Builder M software versions.Each KUC711AE comes with a 12-month warranty against defects in materials and workmanship,supported by engineers with deep expertise in ABB automation platforms.Our commitment ensures your KUC711AE integrates smoothly,performs reliably,and delivers long-term value in even the most demanding industrial environments.
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