Cost effective and small M-Bus Display / Datalogger for up to 3 or 20 meters.
Levelconverter for up to 3 or 20 meters
Mounting on DIN rail
Operation of all meters according to EN1434-3
Independent M-bus Display
Data transmission rates 300.. 9600 Baud
Durable short circuit proof
Operated locally by keyboard and LCD
Like M-Bus Display, but additionally with adjustable periodic bus read out and storage of meter data
Presentation of historical meter data on LCD
1MByte Flash memory, optionally up to 4MByte
C3 / C20 - the ideal master for your small M-Bus installation.
The members of the C3/C20 family are ideally suited for M-Bus installations with up to 3 or 20 meters.
All devices offer a RS232C to M-Bus level converter function for remote read-out of meter-data by a PC with software.
Additionally the M-Bus Display allows real stand-allone operation with the integrated LCD and keypad.
Therefore meter data can be displayed on-site with few keystrokes.
The M-Bus Data Logger version is also able to save meter data automatically at free selectable times.
For this purpose even the standard version of the M-Bus Data Logger is equipped with large memory,
which can also be extended if it is required. The collected data can be read out and evaluated by PC, Laptop or Modem at any time.
The scope of supply contains the software FService, which makes set-up and parametrization of the masters much easier.
11V .. 28VDC / 13V .. 28VAC
M-Bus Voltage (without load)
M-Bus Idle Current
Max. M-Bus Quiescent Current
M-Bus Current (C20)
max. 30mA (20 unit loads)
M-Bus Current (C3)
max. 4,5mA (3 unit loads)
M-Bus Quiescent Current
M-Bus Standby Current
Internal Bus Resistance
approx. 100 Ω
300 .. 9600 Baud
Transmission Speed Optical
M-Bus Baud Rate
light-grey plastic, protection type
IP40 H x W x D: 58 x 106 x 96 mm
for DIN rail EN50022 TS35
LED Status Indicators
4 pushbutton switches
LCD with 2 lines a. 16 columns,
power supply (GND, TXD, RXD)
2 RS232 as 9-pin. DSUB-socket 1 x PC / 1 x Modem
(shared to the number of meters)
1MB standard, 2MB or 4MB on
Dimensions H x W x D
Firmware WebGUI Version 1 (Broadway)
Firmware WebGUI Version 2 (HTML5)
M-Bus Display for 3 meters
M-Bus Datalogger for 3 meters
M-Bus Display for 20 meters
M-Bus Datalogger for 20 meters