Connect existing building meters and equipment

Start with the equipment already installed. Map the available interfaces and useful measurements before deciding what a connected pilot should include.

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Map the route from the device to the platform

A local gateway links building equipment to Metraon. In the pilot, a Linux gateway communicates with existing meters, bridges, controllers, and relays; MQTT connects it to the cloud platform. Equipment and readings are associated with the building systems they describe.

The first task is to understand the topology and data definitions. Identify the devices, communication paths, registers, units, and operating states that answer the operator’s question. Existing compatible equipment can remain in place.

Connections used by the pilot

These connections describe the pilot and supported integration approaches. They are not a promise that every device exposing the same protocol will work without configuration.

  • Modbus TCP for accessible device registers
  • M-Bus meters through M-Bus-to-Modbus bridges
  • Modbus I/O for supported inputs and relay commands
  • HTTP APIs as a source of configured virtual readings

Agree access and responsibilities before installation

Review device documentation, gateway placement, power, network access, and the people responsible for installation and operation. Confirm which readings can be retrieved and which controls, if any, may be connected.

Start with monitoring when that answers the immediate need. Adding control requires suitable equipment interfaces and an explicitly agreed configuration, including priorities and fallback behavior. Internet and gateway dependencies should be considered as part of that review.

Verify the pilot before extending it

Use a scoped set of sources to compare platform readings with the original device values. Check timestamps, units, and consumption calculations. For control, review commands and physical feedback separately so a delivered instruction is not mistaken for a verified equipment state.

Bring model numbers, interface or register documentation, a network overview, and the operational outcome you want. Together we define the building, sources, access, installation work, and acceptance criteria. Timing, pricing, and support are agreed for that scope.

Read the residential heat-pump case study

Discuss your building and the data you need

Start with the operational question. Review the readings, connections, and responsibilities before choosing a pilot.

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