Honeywell 2MLL-PSRA-CC Remote I/F Module

The Honeywell 2MLL-PSRA-CC Remote Interface (I/F) Module is an essential component in Honeywell’s automation ecosystem, designed to provide reliable and secure communication between remote field devices and the main control system. This interface module acts as a bridge, enabling seamless data transfer over long distances while ensuring signal integrity, isolation, and high-speed communication.

Built with industrial-grade components and featuring robust communication protocols, the 2MLL-PSRA-CC is engineered for critical process control environments. It supports applications where remote monitoring and control are required — especially in large-scale, distributed, or geographically dispersed systems.

Compatible with Honeywell’s range of Distributed Control Systems (DCS), SCADA platforms, and Programmable Logic Controllers (PLCs), the 2MLL-PSRA-CC delivers flexibility, performance, and reliability that plant operators can trust.

Product Specifications

Product Applications

The Honeywell 2MLL-PSRA-CC Remote I/F Module is widely deployed across many industries where remote communication and distributed automation are critical. Typical applications include:

• Oil & Gas

  Remote monitoring and control of field instrumentation on pipelines, wellheads, and offshore platforms.

• Power Generation

  Integration of remote turbine sensors, auxiliary systems, and balance of plant devices.

• Chemical & Petrochemical

  Distributed process unit control across large chemical plants.

• Water & Wastewater Treatment

  Supervisory control of pumps, valves, and sensors across dispersed water distribution networks.

• Mining & Metals

  Real-time control of conveyors, crushers, and auxiliary equipment in surface and underground operations.

• Building Automation

  Integration of HVAC and lighting systems in large facilities with distributed control architecture.

• Pharmaceuticals

  Control and monitoring of GMP-compliant manufacturing equipment in separate cleanrooms.

Product Advantages

• Reliable Communication

  Provides fast, noise-resistant communication even across long distances.

• Flexible Protocol Support

  Supports both industry-standard (Modbus) and Honeywell proprietary protocols for wide compatibility.

• Secure Data Transfer

  Optical isolation ensures signal integrity and prevents ground loops and EMI-related faults.

• Industrial-Grade Durability

  Designed for 24/7 operation in harsh industrial environments.

• Compact and Easy to Install

  Slim DIN rail form factor fits well into standard control cabinets.

• Efficient Diagnostics

  Integrated LED indicators for instant troubleshooting and module status.

• Versatile Power Supply

  Wide input range from 18 to 36 VDC supports field installations with flexible power sources.

• Seamless Integration

  Works natively with Honeywell DCS/SCADA platforms, simplifying system engineering.

• Low Power Consumption

  Energy-efficient design contributes to overall lower operational costs.

• Field-Proven Reliability

  Extensively tested and proven in thousands of field applications globally.

Frequently Asked Questions (FAQ)

1. What is the primary role of the Honeywell 2MLL-PSRA-CC module?

It serves as a communication interface between remote field devices and Honeywell control systems.

2. What communication protocols are supported?

Modbus RTU, Modbus TCP/IP, and Honeywell proprietary protocols.

3. Can it handle both serial and Ethernet communication?

Yes, it supports RS-485 serial and 10/100 Mbps Ethernet communication.

4. Does it offer isolation between data channels?

Yes, it features optical isolation to protect data integrity.

5. What is the power supply requirement?

24 VDC nominal, with an input range of 18 to 36 VDC.

6. What types of systems can it be integrated with?

Honeywell DCS, SCADA, and PLC systems.

7. Is it suitable for outdoor or harsh environments?

Yes, it operates reliably in temperatures from -20°C to +70°C and is compliant with industrial EMC standards.

8. How is the module mounted?

It is designed for DIN rail mounting inside standard control panels.

9. How does the module indicate system status?

Via integrated LED indicators for power, communication, and fault diagnostics.

10. What is the typical service life of this module?

The service life exceeds 10 years under normal operating conditions.