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Product Introduction
The Honeywell 2MLB-M12A is a high-performance Main CPU Base designed specifically for the Experion PKS and ControlEdge control systems. Equipped with 12 modular slots, this base serves as the central backbone for mounting CPU modules, communication interfaces, power supplies, and I/O cards. As part of Honeywell’s industrial automation portfolio, it is built for reliability and long-term deployment in critical control environments such as oil & gas, petrochemical, power generation, and advanced manufacturing.
This base unit is crafted with rugged industrial-grade materials and engineered for high shock and vibration tolerance. It allows for seamless data exchange, easy module replacement, and supports hot-swapping capabilities, reducing downtime during maintenance. It is also backward compatible with earlier modules, making it ideal for system upgrades without overhauling existing infrastructure.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 2MLB-M12A |
| Manufacturer | Honeywell |
| Product Type | Main CPU Base Module |
| Number of Slots | 12 |
| Supported Modules | CPU, Communication, Power Supply, I/O Modules |
| Compatibility | Experion PKS, ControlEdge |
| Mounting Type | Panel/DIN Rail Mountable |
| Construction Material | Industrial-grade thermoplastic with metal housing |
| Operating Temperature Range | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Shock Resistance | IEC 60068-2-27 (30G peak, 11ms) |
| Vibration Resistance | IEC 60068-2-6 (10–500 Hz, 2G) |
| Power Supply Type | Externally powered via backplane module |
| Dimensions (L × W × H) | 426 x 98 x 19 mm |
| Weight | 0.54 kg |
| Compliance Certifications | CE, UL, CSA, RoHS, ATEX (Zone 2 optional) |
| Communication Support | Ethernet/IP, Modbus TCP, OPC UA, HART Pass-through |
Product Applications
The Honeywell 2MLB-M12A is commonly used in the following sectors:
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Oil & Gas Refining Plants – Provides centralized control for complex processes.
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Chemical Manufacturing – Integrates with batch automation and recipe control.
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Power Plants – Supports turbine and boiler control applications.
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Pharmaceutical Industry – Ensures FDA-compliant control infrastructure.
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Water and Wastewater Treatment – Manages distributed control for remote stations.
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Pulp and Paper Mills – Handles process automation in continuous operations.
Product Advantages
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High Capacity: Offers 12 expansion slots to accommodate multiple modules, reducing the need for multiple base units.
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Modular Flexibility: Hot-swappable design allows live replacement or upgrading of modules without halting operations.
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Scalable Integration: Easily integrates with existing Experion or ControlEdge systems, providing scalability for growing automation needs.
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Rugged Design: Designed for harsh industrial environments with extreme temperatures, vibration, and dust conditions.
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Longevity and Reliability: Honeywell’s proven track record ensures dependable performance over long deployment cycles.
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Reduced Downtime: Diagnostic LEDs and modular architecture simplify maintenance and troubleshooting.
Frequently Asked Questions (FAQ)
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What type of modules can be installed in the 2MLB-M12A base?
It supports CPU modules, communication interfaces, power supplies, and various I/O modules designed for Experion and ControlEdge systems. -
Can modules be hot-swapped in this base?
Yes, the design supports hot-swapping, allowing module replacement during live operation with minimal disruption. -
Is it compatible with older Honeywell systems?
Yes, it maintains backward compatibility with several legacy Honeywell modules, aiding system upgrades. -
How do I mount the 2MLB-M12A?
It can be mounted on a DIN rail or directly on a panel using provided mounting brackets. -
Does the base come with a power supply module?
No, power supply modules must be installed separately in one of the available slots. -
What is the environmental rating of the product?
The unit can operate in temperatures ranging from -40°C to +70°C and withstands high levels of vibration and shock. -
How is communication handled between modules?
Communication is managed via an integrated backplane bus, with support for Ethernet/IP, Modbus TCP, and other protocols. -
Is there ATEX certification for hazardous zones?
Yes, an ATEX Zone 2 certified version is available for use in hazardous environments. -
Can this unit be used in a redundant system setup?
Yes, it supports redundant configurations for high-availability systems. -
What maintenance is required for the base unit?
Minimal maintenance is needed. Periodic inspection and cleaning of the contacts and connections are recommended.
Related Models from Same Series or Category
| Model | Description | Number of Slots | Compatibility |
|---|---|---|---|
| 2MLB-M06A | Main CPU Base, 6 Slots | 6 | ControlEdge, Experion |
| 2MLB-M09A | Main CPU Base, 9 Slots | 9 | ControlEdge, Experion |
| 2MLI-CPU40 | ControlEdge PLC CPU Module | N/A | Fits in 2MLB-M12A |
| 2MLI-PWR10 | Power Supply Module for Base Units | N/A | All MLB Bases |
| 2MLI-COMM10 | Ethernet Communication Module | N/A | All MLB Bases |
| 2MLB-M12A-Z2 | Main CPU Base, 12 Slots, ATEX Zone 2 Compliant | 12 | ControlEdge, Experion |
Popular Honeywell Automation Models
| Model | Description | Category | Application |
|---|---|---|---|
| HC900-CPU-064 | Hybrid Controller CPU, 64 I/O Support | Controller | Process automation |
| C300 Controller | Experion PKS Series Distributed Control Unit | DCS Controller | Advanced process control |
| UDC3500 | Universal Digital Controller | Temperature Controller | Industrial ovens, kilns |
| HC900 I/O Rack | Input/Output Expansion for HC900 | I/O Base | Modular I/O expansion |
| 51199929-100 | Power Supply Module | Power Supply | ControlEdge, Experion PKS |
| Experion LX | Compact DCS for small to mid-sized applications | DCS System | Process, batch, discrete |
