Honeywell 2MLI-CPUU high-performance central processing unit (CPU) engineered
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Honeywell 2MLI-CPUU high-performance central processing unit (CPU) engineered
The Honeywell 2MLI-CPUU is a high-performance central processing unit (CPU) engineered to serve as the core of Honeywell’s 2MLI modular control system, a scalable platform designed for medium to large industrial processes. As the decision-making center, it executes control logic, processes input data from I/O modules (such as the Honeywell 2MLF-AC8A and Honeywell 2MLF-AV8A), and coordinates output commands to maintain process variables within desired ranges.
Model2MLI-CPUU
BrandHoneywell
TypeCentral Processing Unit (Modular Control System)
Power Supply24 V DC ± 20%
Operating Temperature-20°C to 65°C (-4°F to 149°F)
MountingDIN rail (35 mm) with locking brackets
Dimensions150 mm x 120 mm x 80 mm (W x H x D)
Weight750 grams
Processing Power3.2 GHz quad-core industrial processor
Memory16 GB RAM, 8 GB non-volatile flash storage
Interfaces2 x Ethernet (10/100/1000BASE-T), 1 x RS-485, 1 x USB-C (configuration), 2 x module bus ports
CertificationsUL 508, CE, ATEX II 3D, IECEx, ISO 13485
CoolingPassive (heat sink with thermal conduction)
Environmental RatingIP20 (when installed in enclosure)
Control CapacityUp to 10,000 control loops, 50,000 I/O points
RedundancyHot-swappable with <50 ms failover time
Programming LanguageIEC 61131-3 (LD, FBD, ST, SCL, IL)
Communication ProtocolsModbus TCP/IP, OPC UA, Ethernet/IP, BACnet
The Honeywell 2MLI-CPUU is a high-performance central processing unit (CPU) engineered to serve as the core of Honeywell’s 2MLI modular control system, a scalable platform designed for medium to large industrial processes. As the decision-making center, it executes control logic, processes input data from I/O modules (such as the Honeywell 2MLF-AC8A and Honeywell 2MLF-AV8A), and coordinates output commands to maintain process variables within desired ranges.
2MLI-CPUU
This CPU integrates seamlessly with Honeywell’s Experion PKS ecosystem, acting as a local processing node that reduces data traffic to central servers while retaining critical control functionality. What distinguishes the Honeywell 2MLI-CPUU is its ability to run both pre-programmed logic and advanced algorithms (such as model predictive control) without performance degradation—making it invaluable for engineers managing complex processes with dynamic operating conditions. For integrators, this translates to modular system design, easier scalability, and simplified migration from legacy Honeywell control systems like PlantScape.
2MLI-CPUU
Main features and advantages:
The Honeywell 2MLI-CPUU delivers exceptional processing power, with a 3.2 GHz quad-core processor capable of executing 10,000 control loops per second—more than enough for most medium-scale industrial applications. Its 8 GB of non-volatile memory ensures program retention during power outages, while 16 GB of RAM provides ample space for real-time data buffering and algorithm execution. This performance allows the CPU to handle simultaneous tasks: processing analog inputs, executing PID control routines, logging historical data, and communicating with supervisory systems—all without latency exceeding 10 milliseconds.
Hardware design emphasizes reliability, with a fanless enclosure that eliminates a common failure point and supports operation in temperatures up to 65°C. The unit features built-in redundancy capabilities, allowing seamless failover to a secondary Honeywell 2MLI-CPUU in less than 50 milliseconds—critical for applications where downtime translates to significant financial losses. Compatibility is a strong suit: it natively supports Honeywell’s 2MLF series I/O modules, as well as third-party devices via standard protocols like Modbus TCP/IP and OPC UA, ensuring flexibility in system expansion.
2MLI-CPUU
Technical specifications:
Model2MLI-CPUU
BrandHoneywell
TypeCentral Processing Unit (Modular Control System)
Power Supply24 V DC ± 20%
Operating Temperature-20°C to 65°C (-4°F to 149°F)
MountingDIN rail (35 mm) with locking brackets
Dimensions150 mm x 120 mm x 80 mm (W x H x D)
Weight750 grams
Processing Power3.2 GHz quad-core industrial processor
Memory16 GB RAM, 8 GB non-volatile flash storage
Interfaces2 x Ethernet (10/100/1000BASE-T), 1 x RS-485, 1 x USB-C (configuration), 2 x module bus ports
CertificationsUL 508, CE, ATEX II 3D, IECEx, ISO 13485
CoolingPassive (heat sink with thermal conduction)
Environmental RatingIP20 (when installed in enclosure)
Control CapacityUp to 10,000 control loops, 50,000 I/O points
RedundancyHot-swappable with <50 ms failover time
Programming LanguageIEC 61131-3 (LD, FBD, ST, SCL, IL)
Communication ProtocolsModbus TCP/IP, OPC UA, Ethernet/IP, BACnet
Contact Us Phone:+86 16626708626 WeChat/WhatsApp:+86 16626708626 Email: 3772179818@qq.com
2MLI-CPUU
Application areas:
In the complex web of industrial automation, where seamless coordination between sensors, actuators, and monitoring systems determines operational success, the Honeywell 2MLI-CPUU serves as the central intelligence hub. It excels in large-scale chemical processing plants, where it orchestrates thousands of real-time data points to maintain precise reaction conditions, reducing process variability by up to 30%. In municipal wastewater treatment facilities, the Honeywell2MLI-CPUU manages the delicate balance between aeration systems, sludge pumps, and chemical dosing—ensuring compliance with environmental regulations while minimizing energy use.
Manufacturing execution systems (MES) in electronics production rely on the Honeywell 2MLI-CPUU to synchronize assembly line robots, quality inspection stations, and material handling equipment, cutting changeover times between product variants by nearly half. Across these industrial settings, the unit addresses critical challenges: processing vast amounts of data with minimal latency, maintaining system integrity during component failures, and adapting to evolving production demands—all while providing a secure platform for process optimization algorithms. Its ability to operate in both standalone and redundant configurations makes it a cornerstone for system integrators designing resilient control architectures.
2MLI-CPUU
Related products:
Honeywell 2MLF-AC8A – Analog input module that feeds process data to the Honeywell 2MLI-CPUU for control calculations.
Honeywell 2MLF-AV8A – Analog output module that executes control commands generated by the Honeywell 2MLI-CPUU.
Honeywell 2MLI-PWR24 – Redundant power supply unit designed to provide stable 24V DC to the Honeywell 2MLI-CPUU and I/O modules.
Honeywell 2MLI-ETHX – Ethernet expansion module that adds 4 additional ports to the Honeywell 2MLI-CPUU for large network configurations.
Honeywell 2MLF-DI16 – Digital input module that sends discrete status signals (e.g., valve open/closed) to the Honeywell 2MLI-CPUU.
Honeywell 2MLF-DO16 – Digital output module that triggers alarms and discrete actuators based on Honeywell 2MLI-CPUU decisions.
Honeywell Experion PKS Server – Central supervisory system that collects data and sends setpoints to the Honeywell 2MLI-CPUU.
Honeywell HC900 Configuration Software – Tool used to program control logic and configure parameters for the Honeywell 2MLI-CPUU.
Installation and maintenance:
Before installing the Honeywell 2MLI-CPUU, ensure the mounting rail is securely fastened to a rigid surface capable of supporting the weight of the CPU plus connected modules—vibration exceeding 5 g can disrupt internal connections. Verify that the control cabinet provides a minimum of 100 mm clearance above and below the unit to maintain proper thermal performance, especially when operating in redundant configurations. For redundant setups, use identical power supplies for both primary and secondary Honeywell 2MLI-CPUU units to ensure consistent voltage levels during failover events.
For maintenance, schedule monthly checks using Honeywell’s Control Builder software to verify CPU load (should remain below 70% during normal operation) and memory usage. Inspect Ethernet connections quarterly to ensure proper seating—loose network cables are a leading cause of communication failures with I/O modules. Perform firmware updates annually during planned shutdowns, with a complete backup of control logic stored on a secure server. The Honeywell 2MLI-CPUU features self-diagnostic LEDs that indicate power status, network connectivity, and module health—address any fault indicators immediately using the built-in web-based diagnostic tool.
WhatsApp: +86 16626708626
Email: 3772179818@qq.com
Phone: +86 16626708626
