M-Bus & Wireless M-Bus
The metering bus for water, gas, heat and electricity
M-Bus is the European standard for reading utility meters — water, gas, heat and electricity — over a robust two-wire field bus. Wireless M-Bus extends the same protocol to battery-powered nodes over sub-GHz radio. Wiman is engineering metering-class gateways with native M-Bus support for sub-metering and utility integration.
Where it is used
- Sub-metering rollouts in residential and commercial buildings
- District heating and cooling networks
- Water and gas distribution networks
- Battery-powered remote meters via Wireless M-Bus (T / S / C modes)
How Wiman supports it
Master (engineering) · Wired M-Bus + Wireless M-Bus listener
- Primary and secondary addressing — read meters by ID or scan the bus
- EN-13757 frame parsing for wired M-Bus telegrams
- Wireless M-Bus T1 / S1 / C1 mode listening (sub-GHz)
- Mapped to clean tag data and forwarded over MQTT / HTTP
- In active development — pilot deployments under way
Integration tip
Wired M-Bus is polarity-insensitive and tolerates long runs — talk to engineering about your meter make/model for compatibility.
In active engineering
There is no shipping M-Bus & Wireless M-Bus product in the catalogue yet — we are validating against real-world equipment now. Pilot units and early-access firmware are available for projects where M-Bus & Wireless M-Bus is on the spec.
Request a pilot unitBuilding with M-Bus & Wireless M-Bus?
Send us your device list, protocol mix and target platform — our engineers will recommend the right gateway or converter, and email you a datasheet.