M-Bus – Level converters, splitters and gateways
Efficient M-Bus integration for modern communication networks
With our M-Bus level converters, gateways and splitters, you can seamlessly integrate measurement data into existing system landscapes – flexibly, reliably and future-proof. Whether USB, Ethernet, serial interfaces or IP-based networks via Modbus, BACnet, MQTT or Secure MQTT: Our devices create a fast and uncomplicated connection without any special configuration effort.
All IP-based devices have an integrated web server that enables convenient installation, parameterisation and maintenance. Password protection, optional TLS encryption and comprehensive diagnostic functions ensure maximum security and transparency – including measurement of voltage and power consumption for easy commissioning and troubleshooting.
Thanks to IPv4 and IPv6 support, you are ideally prepared for future requirements. In addition, we offer tailor-made solutions for processing and integrating M-Bus data into customised software and system environments.
Easy integration of M-Bus installations
M-Bus level converter
M-Bus gateways
for integrating M-Bus installations into Modbus and BACnet networks. Modbus and Bacnet masters can access M-Bus meter. The gateways also support RS-485 for RTU/ASCII protocols.
Wireless M-Bus gateway
supports the Wireless M-Bus standard (OMS, EN 13757-4) in the 868 MHz range including AES encryption and, thanks to the manager interface, enables the reading of meters with transmission rates from 300 to 38400 baud.
M-Bus splitters
tap into existing M-Bus installations without disrupting their function. They transmit all data from the M-Bus devices via serial interface, second M-Bus master interface, IP or MQTT/Secure MQTT protocol.
M-Bus repeaters
for signal refreshing and range extension, supplies additional meters with energy and can itself be operated as an M-Bus device. An integrated web server simplifies analysis and configuration.
M-Bus level converter
M-Bus gateways
Wireless M-Bus gateway
M-Bus splitter and
M-Bus repeater
M-Bus products at a glance
M-Bus installations.
- Supply voltage: 24 V DC (± 20 %) / 24 V AC (± 5 %)
- Mounting: DIN rail TS35 or with screw tabs
- Protection class: IP20 (095606: IP40)
| Standard loads (1.5 mA each) | max. 2 | max. 6 | max. 16 | max. 32 | max. 64 | max. 128 |
| Mounting rail TS35 | 1 TE | 2 TE | 3 TE | 4 TE | 4 TE | 4 TE |
| Dimensions WxHxD (mm) | 18 x 90 x 64 | 35 x 90 x 64 | 54 x 90 x 57 | 72 x 90 x 64 | 72 x 90 x 64 | 72 x 90 x 64 |
| Weight (g) | approx. 72 | approx. 72 | approx. 135 | approx. 170 | approx. 170 | approx. 170 |
| Level converter | MPW-2 | MPW-6 | MPW-16 | MPW-32 | MPW-64 | MPW-128 |
| RS-232** | 095075 | 095074 | 095560 | 095562 | 095569 | 095576 |
| RS-485** | 095076 | 095073 | 095561 | 095564 | 095570 | 095577 |
| USB/MQTT* | 095582 | 095563 | 095572 | 095578 | ||
| Ethernet/MQTT | 095079 | 095566 | 095573 | 095579 | ||
| Ethernet/MQTT and RS-232 | 095567 | 095574 | 095580 | |||
| Ethernet/MQTT and RS-485 | 095568 | 095575 | 095581 | |||
| Gateways M-Bus to | MGW-32 | MGW-64 | ||||
| Bacnet IP/MSTP | 095591 | 095593 | ||||
| Modbus IP/RTU | 095590 | 095592 | ||||
| Gateway Wireless M-Bus | wMGW-50 | |||||
| wMGW-PoE-M-Bus-Gateway for max. 50 wireless M-Bus devices at 1.5 mA Dimensions (WxHxD): 112 x 90 x 52 mm |
095606 | |||||
| Splitter | MSP-32 | MSP-64 | MSP-128 | |||
| Ethernet/MQTT and M-Bus | 095595 | 095596 | 095597 | |||
| Ethernet/MQTT, RS232, Modbus TCP | 095601 | 095602 | 095603 | |||
| Ethernet/MQTT dual M-Bus Manager | 095604 | 095605 | ||||
| Repeater | MRP-32 | |||||
| Ethernet/MQTT | 095598 | |||||
*Configuration via USB | ** without web configuration
Additional information M-Bus level converter
| Standard loads (1.5 mA each) | max. 2 | max. 6 | max. 16 | max. 32 | max. 64 | max. 128 |
| Mounting rail TS35 | 1 TE | 2 TE | 3 TE | 4 TE | 4 TE | 4 TE |
All devices are characterised by simple commissioning. Devices with a serial interface (RS-232, RS-485 or USB) do not require parameterisation. The devices with an IP interface support IPv4 and IPv6 as well as MQTT and Secure MQTT and have a simple parameterisation interface with additional diagnostic functions. They can be parameterised remotely. You can find more information on this in the instruction manual under downloads.
The high M-Bus voltage of 37-40 V makes it possible to operate large M-Bus networks safely. The intelligent controller takes over the management.
With M-Bus transmission rates of 300 to 38,400 baud, the level converters are also suitable for fast M-Bus devices.
This gives you control over your energy management and resource consumption at all times and enables you to operate your systems and buildings efficiently, even remotely.
Additional information M-Bus splitter
An M-Bus splitter divides an existing M-Bus network into several segments or expands it to connect several managers or remote meters without disrupting communication.
The splitter is integrated into the existing M-Bus network and reads all connected devices via its own M-Bus interface and stores the data internally. Via the integrated Ma(nager) interface, the splitter provides the existing M-Bus master with the data as usual. Depending on the splitter version, the data can then be accessed simultaneously via Ethernet, MQTT, Modbus TCP or via a second M-Bus Ma(nager) interface.
Areas of application include the simultaneous querying of meters by different systems (building management system and external billing service provider) or the expansion of large systems (splitters supply remote segments).
Additional information Wireless M-Bus
wMGW-PoE Gateway – Flexibility meets efficiency
Thanks to Power over Ethernet (PoE), the gateway can be conveniently supplied with voltage via a standardised RJ45 network cable – without any additional power supply. Alternatively, a direct supply voltage via 24 V is also possible, which offers additional flexibility during installation. This makes commissioning particularly easy and allows both use in existing network environments and in classic supply structures.
Meter data can be conveniently read out at the integrated Ma(nager) interface; in addition, the device can also be queried via Ethernet as well as via MQTT and Secure MQTT. The Ma(nager) interface supports data transmission rates from 300 to 38,400 baud in accordance with EN 13757-3 and enables direct integration into existing systems. The devices are parameterised via the integrated web interface.
The robust housing allows quick and secure wall mounting. An adapter plate is available as an optional accessory for use on a mounting rail or for mast mounting. This makes the gateway suitable for a wide range of applications – from mechanical engineering and industrial automation to building and domestic technology.
Product properties at a glance
- Integration into existing M-Bus systems via the internal M-Bus (Ma)nager interface
- Parameterisation via an integrated web interface
- Automatic documentation of meter data in CSV format
- Forwarding of data points via MQTT or Ethernet for seamless system integration
- Supports modern AES encryption methods
- Flexible wireless transmission modes for various application requirements
For all those who want to transmit precise measurement data simply and securely – the wMGW-PoE Gateway is your versatile, reliable and future-proof solution.
