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Product Introduction
The Honeywell 2MLR-CPUH/T is a high-performance CPU module within the MasterLogic-200R (ML200R) programmable logic controller (PLC) family. It is purpose-built for automation environments requiring precise, real-time processing, especially where temperature-sensitive or environmentally demanding operations are present.
Tailored for use in temperature-graded installations and high-demand process automation systems, the 2MLR-CPUH/T is engineered with robust processing capabilities, redundant-ready architecture, and compatibility with widely adopted communication protocols. This model provides a solid foundation for scalable and distributed control applications in sectors such as power, oil & gas, chemicals, and more.
The module is compact in size but large in capability, with fast scan cycles, support for thousands of I/O points, and seamless integration with Honeywell’s broader ecosystem of industrial control and monitoring platforms.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | 2MLR-CPUH/T |
| Product Series | MasterLogic-200R (ML200R) |
| Processor Type | High-speed 32-bit ARM-based processor |
| Program Memory (User) | 2 MB |
| Data Memory | 1 MB |
| Backup Battery | Yes (for RAM retention) |
| Redundancy | Supported (Dual CPU configuration) |
| Processing Speed | <1 ms per 1K steps |
| I/O Handling Capacity | Up to 16,384 digital I/O points |
| Communication Interfaces | 2 × Ethernet, 1 × RS232, 1 × RS485 |
| Supported Protocols | Modbus RTU/TCP, Ethernet/IP, DNP3, OPC |
| Power Supply Requirement | 24 VDC |
| Temperature Range (Operation) | -20°C to +70°C (-4°F to 158°F) |
| Temperature Range (Storage) | -40°C to +85°C (-40°F to 185°F) |
| Humidity Tolerance | 5–95% RH, non-condensing |
| Mounting Type | DIN rail |
| Certifications | CE, UL, CSA, RoHS |
| Dimensions (W × H × D) | 150 x 100 x 50 mm |
| Weight | 0.257 kg |
| Shock/Vibration Resistance | IEC 60068-2 compliant |
| Firmware Upgradeable | Yes, via Ethernet port |
Product Applications
The Honeywell 2MLR-CPUH/T is engineered for demanding applications where reliability, temperature tolerance, and rapid I/O processing are essential. Primary application domains include:
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Energy and Power Utilities – Used for distributed control in substations, turbine monitoring, and auxiliary systems.
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Oil & Gas Platforms – Handles offshore platform logic control and pipeline safety interlocking systems.
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Chemical and Petrochemical Plants – Manages reactor sequencing, safety interlocks, and high-speed batch operations.
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Pharmaceutical Manufacturing – Controls HVAC, cleanroom automation, and GMP-compliant batch logging systems.
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Heavy Industrial Machinery – Integrated into large-scale mechanical systems requiring fast and synchronized control.
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Mining and Metallurgy – Deployed in harsh environments for crushing, sorting, and material handling automation.
Product Advantages
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Extended Temperature Range: Operates reliably from -20°C to +70°C, making it ideal for harsh or outdoor environments.
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Redundancy Capability: Enables hot backup systems to ensure process continuity during hardware faults.
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Compact Footprint: Suitable for space-limited control panels without sacrificing performance.
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High-Speed Processing: Provides sub-millisecond scan cycles for rapid automation demands.
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Flexible Communication: Supports multiple industrial communication protocols for open integration.
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Easy to Engineer: Works seamlessly with Honeywell’s ML200R engineering tools and software suite.
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Future-Proofed: Firmware can be updated in the field to keep up with evolving cybersecurity and functionality standards.
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Certified for Industrial Use: CE, UL, CSA, and RoHS compliant for global deployment.
Frequently Asked Questions (FAQ)
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What is the main difference between 2MLR-CPUH/T and 2MLR-CPUH/S-CC?
The 2MLR-CPUH/T is built for wider temperature tolerance, while the S-CC focuses on secure, redundant control in standard environments. -
Can I use this module in outdoor enclosures?
Yes, as long as the enclosure provides IP-rated protection, the module’s wide temperature range supports outdoor or remote installations. -
Does this module support CPU redundancy?
Yes, it supports redundant CPU configurations for mission-critical systems. -
What programming tools are compatible?
Honeywell’s ML200R Engineering Software supports ladder, function block, and structured text programming. -
How many I/O points can this CPU handle?
It supports up to 16,384 digital I/O points, both local and remote. -
Does it come with built-in diagnostics?
Yes, it includes system health diagnostics, watchdog timers, and communication monitoring. -
Is firmware upgrading easy?
Absolutely. It can be upgraded via the Ethernet port without module removal. -
What happens during a power failure?
A backup battery preserves memory data, and configuration remains intact after reboot. -
Can I mount this on any DIN rail?
Yes, it’s designed for standard 35 mm DIN rail installations. -
What kind of cybersecurity protections does it include?
Features include encrypted firmware updates, access control levels, and protocol-level security.
Related Models (Same Series / Functionality)
| Model | Description | Redundancy Support | Temperature Range | Dimensions (mm) |
|---|---|---|---|---|
| 2MLR-CPUH/S-CC | High-end CPU with redundancy | Yes | 0°C to 60°C | 100×130×100 |
| 2MLR-CPUH-CC | Standard high-performance CPU | No | 0°C to 60°C | 100×130×100 |
| 2MLR-CPUL/T | Mid-tier temperature-tolerant CPU | No | -20°C to 70°C | 100×130×90 |
| 2MLR-CPUH-RD | Redundant CPU for critical systems | Yes | -20°C to 70°C | 100×130×110 |
| 2MLR-IO32D | 32-point Digital Input Module | — | -20°C to 60°C | 50×130×85 |
| 2MLR-IO16R | 16-point Relay Output Module | — | -20°C to 60°C | 50×130×85 |
Popular Models from Honeywell (Same Brand)
| Model | Description | Platform | Main Use Case | Certifications |
|---|---|---|---|---|
| HC900-CPU960 | Hybrid controller for complex logic & process | HC900 | Pharma, Food & Beverage, Water | UL, CE, CSA |
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| UDC3200 | Universal temperature/process controller | Standalone | Thermal processes, kilns | NEMA 4X, UL, IP66 |
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| SMV300 | Smart valve positioner with digital interface | Field Instrumentation | Control valves with HART | FM, CSA, SIL2 |
| Safety Manager | TÜV-certified SIS controller | Safety Instrumented System | Emergency shutdown systems | SIL3, TÜV, UL |
