Wireless M-Bus – Radio module
The Wireless M-Bus module RC1180-MBUS from Radiocrafts, comes with different firmware feature sets, based on one standard hardware
platform. The form factor, pin-out and interface are the same for all firmware versions. The MBUS2 feature set is compliant with NTA
8130/DSMR for the Netherlands, and the RC1180-MBUS3 feature set to support OMS and MUC compliance according to the German
standardisation work. Custom variation of the module is available on request.
Compact module with embedded protocol
Embedded Wireless M-Bus protocol supporting EN 13757-4:2005 mode S, T and R2
Conforms with EU R&TTE directive (EN 300 220, EN 301 489, EN 60950)
Easy to use UART interface for communication and configuration
12.7 x 25.4 x 3.3 mm compact module for SMD mounting
Wide supply voltage range, 2.0 – 3.6 V
Frequency bands
Ultra low power modes for extended battery lifetime
Number of channels
2 channels (868.3, 868.95 MHz) in mode S and T
Data rate
10 channels in mode R2 (868.03 + n x 0.06 MHz)
Max output power
No external components except antenna
Sensitivity, R/S/T
Configurable Manufacturer ID and serial number
Supply voltage
Designed for EX compliance
Current consumption, RX / TX
Current consumption, SLEEP
2 pins for data, 2 pins for power and 1 pin for antenna!
Temperature range (S and T mode)
868.0 – 870.0
4.8, 32.768, 100
2.0 – 3.6
24 / 37
Typ 0.3
-40 to +85
RC1180-MBUS module series
RF Module with embedded wireless M-Bus protocol (EN13757-4:2005) and CE marking. Choose between wireless
modem software with communication functionality, and a complete embedded solution with support for
NTA 8130/DSMR according to the Dutch standard and support for the OMS in Germany.
Basic Wireless M-Bus EN 13757-4:2005
Supports S, T and R2 modes, flexible solution
No acknowledge or encryption embedded
Wireless M-Bus with NTA 8130 or OMS feature set
Two-way communication with automatic acknowledge,
AES-128 encryption, easy installation and PC tools.
Feature set
Added features for
NTA8130/DSMR compliance
(the Netherlands)
Added features for Open
Metering System compliance
Basic wireless M-bus
functions, flexibility.
Network role
Master or Slave
Master or Slave
Master, Slave or Repeater
S1, S2, T1, T2, R2
T1, T2
S1, S2, T1, T2
Yes, according to OMS spec
No, must be handled
Yes, AES128 according
to NTA8130/DSMR
(mode 4 and 5)
Yes, AES128 according
to Open Metering System
specification (mode 5)
No, Must be handled
Yes, according to
Up to 8 slaves.
Yes, according to Open
Metering System specification.
Up to 64 slaves.
Receives any
MBUS packet.
Message filtering must be
handled externally
Filter function: Master
only receives messages
from installed/registered
Filter function at master.
Automatic access number
handling and accessibility
check. Autonomous Repeater.
acknowledge mailbox
No, must be handled
Yes, automatic acknowledge
by Master in T2 mode
Yes, automatic message
generation and message
mailbox in Master for T2/S2.
Feature sets
The RC1180-MBUS modules are
easy to use and significantly
reduces time-to-market. All the timecritical operations are handled
within the module. With the MBUS2
and MBUS3 feature set integrated
in an off-the shelf module, the time
to market for NTA8130/DSMR or
German OMS compliant equipment
is shortened dramatically. The
customers to implement their own
custom variation of the Wireless MBus EN 13757-4:2005.
Radiocrafts AS, Sandakerveien 64, NO-0484 OSLO, NORWAY. Tel. sw. board: (+47) 4000 5195. F a x: (+ 47) 2271 2915. www.radiocrafts.com
Basic EN 13757-4:2005
This is the basic Wireless M-Bus module with support for all
modes in the EN 13757-4:2005 standard. This module also has
support for the T1 and T2 modes described in NTA 8130, but
does not contain automatic acknowledge or encryption.
Developers who are implementing two-way communication with
handshake and encryption can do this in an external controller
but need to handle all timing externally. This basic feature set
makes it possible to make adjustments on the timing and the
module has greater flexibility.
This module has full support for the T1 and T2 mode according
to NTA 8130 P2 interface. The two-way communication with
acknowledge is done by the firmware included in the RC1180MBUS2 radio module. All time critical events needed to be
compliant with the NTA 8130 are handled internally. An easy to
use UART interface make this a complete communication
module, handling all radio communication including encryption.
This module also supports all other modes S1/S2 and R2.
OMS specification
The new MBUS3 firmware from Radiocrafts is now available,
and can be acquired for implementation. Some of the new
features to comply with the Open Metering Specification
released in Germany are:
Easy installation support, embedded in the module
HW encryption in module (Encryption co-processor)
Full support for 64 slave nodes
Auto message, standard messages, mailbox, templates
Auto-message generation for T2 mode within 2-3 ms
Encryption on the fly, ultra fast message generation
Automatic MUC status, with RSSI information
Frame Count Bit (FCB) according to the EN13757-4
Automatic Access Number handling for each message
Fully autonomous OMS repeater functionality
Improved MBUS Demo PC Tool to help developers
T2 mode according to NTA 8130 P2 interface
The RC1180-MBUS2
support for the T2
mode according to the
DSMR P2 interface in
the Netherlands. The
module has a fully
embedded which is adapted to work according to the
NTA8130/SDMR standard. The firmware stack is running on
the existing RC1180-MBUS hardware platform. It is possible for
customers already using the module to get access to upgrades.
See details below about the new Appnote on firmware upgrade.
Please contact [email protected] if you would like to start
implementing with the T2 mode for your meter application.
OMS Primary communication interface
The OMS primary communication interface is based on the
Wireless M-Bus standard (EN 13757-4:2005) and specifies the
communication between a Multi Utility Communication (MUC)
controller or gateway, and electricity, gas, water and heat
meters. The specification is becoming widely accepted in
Europe as a basis for new Advanced Metering Infrastructure
(AMI) installations. Radiocrafts has participated in the
development of the new specification together with leading
meter manufacturers and other communication technology
providers in Europe.
M-Bus protocol on 433 MHz
NEW! RC1140-MBUS2 for non-European to be used in
regions where 868 MHz is not license-free. Identical
protocol and pin-out as for the 868 MHz family RC1180MBUS, just different frequencies.
Metering application layer NTA8130/DSMR and German Open Metering Specification
There are different options for protocols in the application layer in NTA (NE) and OMS (DE). NTA has defined M-Bus application layer to
the electricity meter. OMS has also opening for the DLMS/COSEM and the SML (Smart Message Language v. 1.02) optionally.
Both NTA and the OMS have defined the DLMS/COSEM from
the Electricity meter/MUC to the back-bone system. OMS has
also openings for the SML protocol over IP at this interface.
The RC1180-MBUS module supports both M-Bus application
layer (EN13757-3) and COSEM/DLMS/SML application layer
(EN13757-1). The first is used in the Netherlands (NTA 8130),
and the second is an option in Germany (OMS). The CI field, as
the first byte in the application layer, distinguishes between
these to application layer protocols.
(DE: El.mtr)
OMS spec
Appl. layer
Appl. layer
=> over IP
Physical layer:
Wired or
Wireless M-Bus
MUC unit
Physical layer:
IP over GPRS
Ehternet or PLC
DLMS/Cosem appl.
SML: Smart Message
Language v. 1.02
SML: Smart Message
Language v. 1.02
From the OMS standard regarding application layers:
4.1 Overview of application layers
The Application layer has always a fixed frame structure as described in EN13757-3. It may transport either the meter application layer concerning EN13757-3 (M-Bus), or
alternatively EN13757-1 (COSEM/DLMS/SML)-type communication (primarily used by electricity meters). Note that the CI field as the first byte of the application layer
distinguishes between these two application layer protocol types and frame structure. A MUC or a user display shall be able to handle both application protocol types at least
to the extent that it can extract from the telegrams the values required for its function or application………
Radiocrafts AS, Sandakerveien 64, NO-0484 OSLO, NORWAY. Tel. sw. board: (+47) 4000 5195. F a x: (+ 47) 2271 2915. www.radiocrafts.com
RC1180-MBUS Customer specific Feature set
UART interface:
Data in – RF out
2.0 – 3.6 V
Based on the standard feature set Radiocrafts also offers
customer specific feature sets. Additional features might
include, but are not limited to:
Reading of pulse input
Storing main index
Tampering alarm
Low Battery alarm
Installation support
Wired M-Bus link protocol
Reading meter data via serial interface
Accurate event timing with internal RTC
Handling application layer of wireless M-Bus standard.
To host meter or
The RC1180-MBUS module has an easy to use UART
interface (easily translates to RS232/RS422/RS485/USB). This
is a standard interface which enables customers to use an
existing external microcontroller to work with the radio module.
We have experienced customers who have made a complete
Wireless M-Bus compliant meter in less than 3 weeks.
2 pins for data, 2 pins for power and 1 pin for antenna!
RC1180-MBUS Firmware upgrade option
Radiocrafts can now offer customers who have
purchased the RC1180-MBUS Demo Kit the option to
upgrade the firmware of the module, in order to be
updated on the latest develop-ments from
FlashPro-CC connected to RC1180DB-USB
Radiocrafts. The RC1180-MBUS Demo Boards
include an on board firmware upgrade connector
compatible with the flash programming adapter from Elprotronic. The application note describes
how to firmware upgrade RC1180-MBUS Demo Boards using the FlashPro-CC tool. Please go to
www.elprotronic.com for purchasing information and software download.
Wireless M-Bus packet sniffer with RC1180-MBUS Demo Kits
The MBUS-DEMO software is a part of Radiocrafts’ RCTools
PC suite tailored for use with Radiocrafts’ RF Modules.
Radiocrafts has developed MBUS-DEMO, which is designed to
demonstrate a wireless MBUS system using the RC1180MBUS module. The program enables you to easily set up a
meter emulator and a meter collector.
Meter Emulator
The Meter Emulator allows you to set up one of the RC1180MBUS modules as a meter, sending meter status on request or
periodically. The UART package from the PC to the RC1180MBUS is listed, and the message can be changed by the user.
The package is received from the meter via the UART interface.
Meter Collector
The Meter Collector allows you
to set up one RC1180-MBUS
module as a wireless M-BUS
message collector. This board
will act as a Wireless M-BUS
packet sniffer receiving and
listing all incoming Wireless MBUS packets. All collected data
can be selected in order to copypaste the information to an Excel
spreadsheet for further analysis.
Radiocrafts RF + Sierra Wireless AirLink GSM
Radiocrafts module portfolio is available for the Sierra Wireless AirLink GPRS/GSM/EDGE modem.
Sierra Wireless is the leading provider of M2M modems. The combination of Radiocrafts’ RF modules
and Sierra Wireless GPRS modems makes an easy to use out-of-the-box gateway solution with full
TCP/IP capability and processing power for extensive embedded applications. The Xtend directly
connects to Radiocrafts I/O on the internal IESM card. The Open AT IDE is easy to use and the
development tools are free of charge with extensive application support inside the Open-AT Software
Suite. This will give a cost competitive, high performance combination. The slot-in-card works with all
types of Radiocrafts modules. From Radiocrafts it is available a free Radio Test Gateway (RTG)
software for local connection to the RS232 port of the modem or for enabling transparent GPRS
connection via AT-commands.
Radiocrafts AS, Sandakerveien 64, NO-0484 OSLO, NORWAY. Tel. sw. board: (+47) 4000 5195. F a x: (+ 47) 2271 2915. www.radiocrafts.com
High Speed Flashing and Testing
Spurious measurements – important vs CE qualification
Radiocrafts has implemented a unique solution for high speed
volume production. This is an innovative test system for high
volume flashing, RF testing and taping of radio modules.. This
machine combines all our experience and expertise in radio
modules and have the capacity of testing more than 10k
modules per day.
We have experienced customers and competition which are
making radio solutions with unknown compliance status
versus CE regulations. This is often based on a lack of
knowledge about the different CE regulations and not enough
control of process variation. We know by experience it is
difficult to confirm to regulations with certain chips and SoC’s.
This is one of the reasons why we ALWAYS test our radio
modules 100% before shipping to customers.
Radiocrafts is testing the following parameters
on the RC1180-MBUS radio module before shipping:
Freq accuracy (ppm)
Output power (dBm)
2nd harmonic (dBm)
3rd harmonic (dBm)
Spurious emission (freq/max level, dBm)
RX sensitivity
TX supply current (mA)
RX supply current (mA)
Idle supply current (mA)
Sleep supply current (uA)
Program memory verification
UART communication
Radiocrafts ATS – Automatic Test Station – module boards
Benefits of 100% test coverage:
Testing of all these parameters will make further detailed
testing unnecessary, and only functional testing needs to be
done to ensure that the total application is working properly.
Little or no variations on delivered product
Avoid yield problems, and costs
Ensure regulations compliancy for every radio module
No extensive testing needed at later stage
One form factor – pin compatible – Different radio technologies
Radiocrafts can offer full flexibility for manufacturers who is looking for different radio solutions. It is now possible to make one PCB
design and combine several radio technologies, by only changing the radio module and the antenna. Only minor adjustments in the
host controller firmware are necessary to swap between different firmware. The footprint compatible wireless M-Bus solution and the
new high power IEEE 802.15.4 ZigBee, Smart Energy and RF4CE radio module gives a unique flexibility for metering applications.
Wireless M-Bus
ZigBee Smart Energy
2,4GHz Narrowband
868MHz 500mW
433 MHz
915 MHz
Complete embedded solution
Complete embedded solution
IEEE 802.15.4 platform
IEEE 802.15.4 platform
IEEE 802.15.4 platform
High power, embedded FW
Long range, 3+ km range
Cost effective, embedded FW
USA frequency ISM band
Footprint compatible radio modules
Radiocrafts can offer a wide range of different radio modules which are footprint compatible. The high power IEEE802.15.4 module is
platform for ZigBee, Smart Energy, 6LowPAN and RF4CE. The radio module is working with the latest ZigBee Smart Energy profile 1.5
and will also be able to run the new SE 2.0 which is under development. The OMS (Germany) and NTA8130/DSMR compliant Wireless
M-Bus radio modules has a complete software stack embedded, making it a complete communication module. Several sub 1GHz
frequencies are also available in the same footprint. All modules are pin compatible for full flexibility.
“Radiocrafts is a clear leader for radio modules dedicated to the metering industry. Their Wireless M-Bus module provides the most
complete solution supporting OMS and NTA8130/DSMR on the market. Their new ZigBee platform is ideal for the Smart Energy profile.
They have succeeded in combining high RF performance with a compact form factor, achieving a complete RF solution that is easy to
use for metering.”
Emmanuel Sambuis,
General Manager – Metering, Texas Instruments
Radiocrafts AS, Sandakerveien 64, NO-0484 OSLO, NORWAY. Tel. sw. board: (+47) 4000 5195. F a x: (+ 47) 2271 2915. www.radiocrafts.com
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