Wireless M-Bus is an industrial wireless protocol that was developed as a standardized solution for wireless meter reading (EN 13757) and provides interoperability between different vendors. The use of an RF module ensures standard compliance, and also the flexibility to choose between different modes and frequency bands depending on application and geography. Radiocrafts is a leading provider of Wireless M-Bus solutions, and takes actively part in the standardization work in CEN and OMS.
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Wireless M-Bus Module Selection
|Module||Frequency band [MHz]||Radio channels [#]||Data rate [kbps]||RX sensitivity [dBm]||RX current [mA]||Pout [dBm]||TX current [mA]||SLEEP current [uA]||Operating supply voltage [V]||Operating temperature [deg C]||Indicative LOS [m]||Region / compliance|
|RC1140-MBUS3||433||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||1000||OMS / non-EU|
|RC1160-MBUS3||868||1||100||-102||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||OMS / Russia|
|RC1170-MBUS3||865||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||OMS / India|
|RC1180-MBUS3||868||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||OMS / EU / CE|
|RC1701HP-MBUS4||169||10||2.4/4.8/19.2||-119/-115/-107||31||27||403||0,6||2,8 – 3,6||-30 to +85||5000||EU / CE|
|RC1701VHP-MBUS4||169||10||2.4/4.8/19.2||-119/-115/-107||31||30||703||0,6||2,8 – 3,6||-30 to +85||8000||EU / CE|
|RC1140-MPC1||433||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||1000||non-EU|
|RC1160-MPC1||868||1||100||-102||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||Russia|
|RC1170-MPC1||865||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||India|
|RC1180-MPC1||868||12||4.8/32/100||-106/-102/-101||24||10||37||0,3||2,0 – 3,6||-40 to +85||500||EU / CE|
|RC1701HP-MPC1||169||10||2.4/4.8/19.2||-119/-115/-107||31||27||403||0,6||2,8 – 3,6||-30 to +85||5000||EU / CE|
The Wireless M-Bus RF Transceiver Modules are compact surface-mounted high performance modules with embedded Wireless M-Bus protocol. The RC11xx series cover 868 MHz, as well as variants at 433, 865, 869, and 815/923 MHz. The RC17xx series cover 169 MHz. The module can be configured to operate as Slave (in the meter), Master (in the concentrator), or as Repeater (single hop).
The modules have an easy to use UART interface for serial communication and configuration and a one-pin antenna connection. When used with quarter-wave antennas a line-of-sight range of over 800 meters can be achieved at 868 MHz, and several km at 169 MHz. Ultra low power mode extends battery lifetime.
The MPC1 (M-Bus Pulse Counter) variant contains an autonomous application for pulse counting, alarm supervision and transmission scheduling. It also supports over-the-air configuration and installation.
- Full feature Wireless M-Bus stack embedded
- EN 13757-3:2013, EN 13757-4:2013 and EN13757-5:2013
- 868 MHz (C,R,S,T modes) and 169 MHz (N mode)
- 433, 865, 869, 915, 923 MHz for non-EU operation
- Master module with 256 slaves
- Auto-message generator
- AES-128 hardware encryption
- Designed for Open Meater Reading (OMS) specification
- Designed for NTA8130/DSMR/SMR
- Special support for CIG (Italy) TS 11291-11-4
- UART interface for communication and configuration
- Pulse counter and automatically scheduled transmissions (MPC variant)
- Ultra low power modes for battery lifetime > 15 years
- High power option (27/30 dBm) in same footprint
- Compact shielded module 12.7 x 25.4 x 3.3 mm for SMD mounting
- Designed for CE compliance
For all our Wireless M-Bus modules, Development Kit suitcases are available for rapid prototyping and proof of concept. The kits contain:
- Two Development Boards with the module of choice, onboard USB level shifter and USB connector, SMA antenna connector, I/O break-out
- Quarterwave stub antennas with SMA connector
- USB cables
- The HP variants include additionally AC/DC Power Supplies
One kit will make a wireless link “out of the box” and feature easy access to all the modules I/O-pins. The kit can be used together with the PC software tools.
RCxxxxDK-USB Quick Start 1.1
This is a quick start guide for the Development Kit.
RCxxxxDK-USB User Manual 1.12
This is a complete User Manual for the Development Kit, how to set it up and use it. It also includes schematics and layout for the Development Boards.
Tools & Manuals
Read the installation guide prior to download or installation: RCTools Installation guide
Download Our Tools:
The RCTools-MBUS contains PC software tools supporting modules Wireless M-Bus protocol.
The MBUS-DEMO (M-Bus Development Tool) is a software suite containing tool for easy module configuration and concentrator/meter emulators. The tool helps you transmit encrypted Wireless M-Bus packets, set up two-way communication, and provides a packet sniffer.
The MBUS-CCT (Configuration & Communication Tool) helps you to work with your Radiocrafts modules. The program enables you to easily configure the module and can additionally work as a terminal window, where data can be sent or received to / from any serial port. The RSSI (Received Signal Strength Indicator) informs you about the Link budget and helps you estimate range.
What is Wireless M-Bus?
Wireless M-Bus is the only European standard (norm) for wireless meter reading (EN 13757). The standard was originally developed for communication with battery operated gas, water and heat meters, operating at 868 MHz with a focus on low power consumption and low implementation cost. The standard has later been updated and expanded to include narrowband radio, security (encryption and authentication), and repeater networks. It supports all types of utility meters as well as environmental sensors. Wireless M-Bus is the basis for OMS (Open Metering System) and other national companion standards (France, Italy, Netherlands) for meter reading.