M-Bus Converters

Compare CNV150 and CNV250 M-Bus converters: meter capacity, USB/RS232 interfaces, bus planning and the 4G alternative. Request a technical quote.

Connect M-Bus meters to a local reading system

An M-Bus converter provides communication between compatible heat, water or energy meters and the reading computer. ATLAS product information lists CNV150 and CNV250 options. Selection must consider each meter’s M-Bus load and the cable network alongside the total meter count.

Model comparison

Model Stated maximum capacity Selection check
CNV150 150 meters Verify total M-Bus loading, cabling and the polling plan.
CNV250 250 meters Verify total M-Bus loading, cabling and the polling plan.

Interfaces and operating features

  • RS232 and USB 2.0 computer interfaces; verify compatibility with the reading software and drivers.
  • M-Bus communication at 300–19200 baud. Meter and converter settings must match.
  • Product information lists short-circuit/overcurrent protection, LEDs and audible alerts.
  • For a two-wire M-Bus network, assess distance together with cable cross-section, capacitance, topology, device loading and data rate.

Local converter or 4G data collector?

For local computer-based meter reading, assess the converter interfaces. ATLAS M-BUS CONVERTER-4G is a separate option for direct MQTT transmission without a computer or external modem. Confirm the GSM hardware and exact CNV150/CNV250 variant during quotation.

Verify meter compatibility

A suitable M-Bus meter interface is required. A standard designation alone does not demonstrate compatibility with every make/model and every data record. Check addressing, reading software and data mapping.

Information needed for model selection

Send meter makes/models, quantity, existing software, the cable layout and your preference for local or cloud reading. These details support capacity and interface selection.

Request a technical converter quote

Other communication solutions

CNV Series (Wired Converter)
CNV Series (Wired Converter)
Capacity and Models

CNV150: 150 Meter Capacity
CNV250: 250 Meter Capacity

Protection Systems

Short circuit and high current protection (Active output protection)
Galvanically isolated USB Port (Protects the computer against high voltage)

Alert System

LED and Audible Warning System (In case of fault and short circuit)

Connection Interfaces

RS232 and USB 2.0 Support (Direct PC connection without requiring a converter)

Communication Speed

Between 300 baud and 19,200 baud

Power Management

Sleep Mode (Provides energy saving and protects the line when not in use)

GSM Option

Optional internal GSM modem available

Line and Installation Features
Line and Installation Features
Wiring

Non-polarized connection via two wires, regardless of direction

Range

Product information states up to 1500 metres. Verify the usable distance for the project against cable cross-section/capacitance, topology, meter loading and data rate.

Noise Filtering

Filters out external noise on the line

Environmental and Standards
Environmental and Standards
Operating Temperature

Between -20°C and +70°C

Compatibility

Complies with TS EN 1434-3 and TS EN 13757-2 standards

Brand Support

For meters with a suitable M-Bus interface. Verify make/model, data records, addressing and reading-software compatibility before commissioning.

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