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Product Introduction
The Honeywell 2MLL-CH2B-CC Computer Link Interface Module is a critical component designed to provide reliable, high-speed communication between Honeywell’s distributed control system (DCS) components and the central host computers or controllers. It acts as a robust interface, bridging control hardware with computer systems, facilitating seamless data exchange, command transfer, and operational synchronization.
This module is part of Honeywell’s advanced automation hardware family, engineered specifically for use in process control environments such as refineries, power plants, chemical industries, and manufacturing facilities. It supports complex communication protocols while ensuring minimal latency and high data integrity, which is essential for mission-critical industrial automation tasks.
Built for durability and operational continuity, the 2MLL-CH2B-CC supports a wide range of industrial protocols, contributing to the flexible integration of legacy systems with modern network infrastructures. It plays a vital role in optimizing system performance and enhancing the overall control architecture.
Product Parameters
| Parameter | Specification |
|---|---|
| Model Number | 2MLL-CH2B-CC |
| Module Type | Computer Link Interface Module |
| Communication Interface | Serial RS-232/RS-422 and Ethernet (optional) |
| Supported Protocols | Honeywell proprietary protocols, Modbus, TCP/IP |
| Data Transfer Rate | Up to 115.2 kbps (serial), 10/100 Mbps (Ethernet) |
| Number of Ports | 2 serial ports, 1 Ethernet port (optional) |
| Operating Voltage | 24 VDC nominal (18-32 VDC) |
| Power Consumption | Approx. 10 W |
| Operating Temperature Range | -20 °C to +60 °C |
| Storage Temperature Range | -40 °C to +85 °C |
| Relative Humidity | 5% to 95%, non-condensing |
| Dimensions (H x W x D) | 50 x 130 x 120 mm |
| Weight | 0.15 kg |
| Mounting Method | DIN rail or rack-mounted |
| Isolation | Optical isolation on communication lines |
| Certifications | CE, UL, cUL, RoHS compliant |
Applications
The Honeywell 2MLL-CH2B-CC module is widely utilized in industrial automation and process control systems where reliable communication between controllers and computing systems is paramount:
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Distributed Control Systems (DCS): Enables efficient data exchange between control modules and host computers in refining, petrochemical, and power industries.
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SCADA Systems: Facilitates communication links in Supervisory Control and Data Acquisition applications for remote monitoring.
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Manufacturing Automation: Supports integration of automated lines with centralized control and monitoring systems.
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Energy Management Systems: Interfaces between field devices and energy management platforms for real-time data collection.
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Process Control Networks: Provides seamless connectivity for real-time control and process monitoring.
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Legacy System Integration: Acts as a bridge for connecting older Honeywell systems with newer computer architectures.
Product Advantages
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Robust Communication: Provides stable and reliable data transfer between multiple control system components, minimizing communication errors.
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Multiple Interface Support: Includes serial and optional Ethernet ports for versatile connectivity options.
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Industrial-Grade Durability: Designed to operate within wide temperature and humidity ranges, suitable for harsh industrial environments.
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Easy Installation: Supports both DIN rail and rack mounting to fit diverse hardware configurations.
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Optical Isolation: Enhances signal integrity and protects against electrical interference.
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Wide Protocol Compatibility: Supports Honeywell proprietary and common industrial communication protocols.
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Low Power Consumption: Efficient design reduces overall system power requirements.
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Compact Form Factor: Saves valuable panel space without compromising functionality.
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Field Serviceable: Easy to replace and upgrade without extensive system downtime.
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Certified for Safety and Compliance: Meets international standards, ensuring operational safety and regulatory adherence.
Frequently Asked Questions (FAQ)
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What is the primary role of the 2MLL-CH2B-CC module in a control system?
It acts as an interface module that links Honeywell DCS components with host computers, enabling high-speed, reliable data communication. -
Which communication protocols does this module support?
It supports Honeywell proprietary protocols, Modbus, and TCP/IP for flexible integration. -
Can the 2MLL-CH2B-CC module be used in harsh industrial environments?
Yes, it is built to withstand wide temperature ranges and high humidity, with optical isolation to reduce electrical noise. -
Is Ethernet communication standard on this module?
Ethernet is optional; the module primarily supports dual serial communication ports but can include Ethernet for network flexibility. -
What mounting options are available for the module?
It supports both DIN rail mounting and rack installation, allowing adaptable system integration. -
How does the module ensure communication reliability?
Through optical isolation on the communication lines and industrial-grade hardware design, it minimizes noise and signal degradation. -
What power supply requirements does the module have?
It requires a nominal 24 VDC power supply within an 18-32 VDC input range. -
Is the module backward compatible with older Honeywell systems?
Yes, it supports legacy Honeywell communication protocols, enabling integration with existing infrastructure. -
What are typical applications for this interface module?
It is widely used in DCS, SCADA, energy management, and manufacturing automation systems for communication purposes. -
Can the firmware or software on the module be updated in the field?
Firmware updates can be performed via connected computer interfaces using Honeywell engineering tools, ensuring the latest features and security patches.
Related Models (Same Series or Functionally Similar)
| Model Number | Description |
|---|---|
| 2MLL-CH2B-CA | Computer Link I/F Module, alternate configuration |
| 2MLL-CH2A-CC | Computer Link Interface Module, single port |
| 2MLL-CH3B-CC | Multi-port Computer Link Interface Module |
| 2MLL-CH1B-CC | Single Port Computer Link Interface Module |
| 2MLL-COMM-01 | Communications Interface Module |
| 2MLL-ETH1-CC | Ethernet Communication Module |
Popular Honeywell Modules (Same Brand, High Demand)
| Model Number | Description |
|---|---|
| 2MLK-CPUS-CC | Processor Module |
| 2MLK-IOPS-AA | I/O Processor Module |
| 2MLK-COMS-AA | Communications Interface Module |
| 2MLL-CH2B-CC | Computer Link Interface Module |
| 2MLK-IMPS-AA | Input/Output Management Processor |
| 2MLK-DPS-CC | Dual Power Supply Processor Module |
