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M2M2

Bridges Modbus RTU, Modbus TCP, BACnet/IP, CAN and Ethernet within a single platform.

  • Multi-Protocol Support
    Modbus RTU, Modbus TCP, CANbus, BACnet/IP
  • Web-Based Configuration
    Real-time diagnostics, parameter adjustments and software updates
  • Enhanced Operational Reliability
    Designed for reliable operation in critical industrial environments
  • Scalable Solution
    Supports multiple third-party devices on a single unit

Universal Communication Gateway for Advanced System Integration

Bridges Modbus RTU, Modbus TCP, BACnet/IP, CAN and Ethernet within a single platform.

M2M2 is an industrial communication gateway that enables reliable and stable communication between Danfoss System Managers and third-party equipment. The platform is designed to handle multiple protocols and interfaces within a single device and can be configured with different software variants for specific integration requirements.

By combining RS-485, CAN, Ethernet and WiFi in a single hardware platform, M2M2 provides a flexible gateway between field devices and supervisory systems.

The Challenge

Modern refrigeration, HVAC and energy systems often use different communication protocols.
This can result in:

  • Complex system design
  • Lengthy commissioning
  • Custom integration solutions
  • Limited scalability
  • Increased risk of communication issues

Many projects require multiple gateways or custom-developed logic to enable communication between systems.

The Solution

M2M2 acts as a protocol converter and integration platform.

Different software variants configure the unit to:

  • Normalize data
  • Emulate compatible devices
  • Integrate third-party equipment into the Danfoss ecosystem
  • Establish reliable communication between different networks

The result is a standardized, scalable and future-ready integration solution.

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Software

  • M2M2-10
    Gateway for Danfoss AK2 Controllers

    M2M2-10 is a gateway that extends Danfoss AK2 controllers with Modbus TCP, Modbus RTU and BACnet/IP communication, enabling them to connect to BMS or SCADA systems.

  • M2M2-70
    Gateway for Energy Meters to Danfoss AK-SM 800/800A

    M2M2-70 is a gateway that enables energy meters from multiple manufacturers to be integrated with Danfoss AK-SM 800/800A.

    The gateway reads the energy meters via Modbus RTU and presents them to the Danfoss System Manager as a Carlo Gavazzi EM210 meter, enabling seamless integration into the Danfoss system.

Technical Specifications

Protocols

  • Modbus RTU
  • Modbus TCP
  • BACnet/IP

Power Supply

  • 12–24 V DC
  • < 1 W power consumption
  • Overvoltage and reverse polarity protection

Mechanical

  • Dimensions: 70 × 90 × 32 mm
  • Plastic enclosure
  • DIN rail mounting
  • IP20
  • CE, RoHS

Network & Interfaces

  • 1 × Ethernet-port
  • 1 x CANbus
  • 2 x RS-485
  • Web GUI via WiFi or Ethernet

Features

  • Built-in WiFi for configuration
  • Support for Modbus RTU, Modbus TCP, CAN bus and BACnet/IP
  • Integration of wireless sensors via gateway
  • Ethernet connectivity
  • Status LED for clear operating status indication
  • Web-based interface for:
    • Configuration
    • Diagnostics
    • Real-time data
    • Software updates

Typical Applications

  • Integration of AK2 controllers with BMS/SCADA systems
  • Integration of wireless sensors
  • Exposing multiple Modbus RTU devices over TCP or to a Danfoss System Manager
  • Emulating third-party products as compatible devices

Business Benefits

Fewer Devices per Project – A single communication gateway replaces multiple custom integration solutions.

Shorter Commissioning Time – The web interface and standard protocols reduce configuration time.

Lower Integration Risk – Proven industrial protocols replace customer-specific integration logic.

Scalable Architecture – New devices can be added easily without redesigning the entire system.

Lower Service Costs – Remote access and centralized management reduce the need for on-site visits.

Support & Remote Access

Technical Support
We provide:

  • Selection of the appropriate software for the application
  • Preconfigured units
  • Remote support during commissioning and troubleshooting
  • Software updates
  • Customized integration solutions
  • On-site installation and commissioning

You get access to technicians with in-depth knowledge of both Danfoss System Managers and integration environments.

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