M-Bus level converter

The M-Bus is a bus designed to read measuring instruments such as energy meters, hot and cold water meters, gas, pressure, sensors and actuators, etc. Nowadays, more and more manufacturers are implementing the M-Bus interface in their meters, making it an optimal device for remote reading and intelligent measurement applications.

Our M-Bus master (M-Bus converter) is a universal and simple M-Bus master that can be connected to up to 250 M-Bus devices. This device can convert M-Bus to RS232 or RS485, so it is possible to easily integrate this device into remote data acquisition systems.

General:
• RS232/RS485 version
• Power supply 90-250V~, 50-60Hz
• Over-voltage protection >1000V
• M-Bus line power mark 36-40V, space 24-27V
• Adjustment to M-Bus loads Automatic
• M-Bus short circuit event current ≥500mA
• M-Bus short circuit reaction time Configurable, 1-4s.
• Recover after short connection Configurable, 10-60s.

Physical characteristics:
• Dimensions 105x75x45 mm
• Weight 170 g
• Mounting type on DIN rail
• Protection type IP20

Climate conditions:
• Operating temperature -20 to +50 oC
• Storage temperature -50 to +70 oC
• Humidity range 5 – 95%, non-condensing

LED indication:
• Off line M-Bus not loaded (ON)
• Overload M-Bus short connection
• Operating M-Bus power (ON/Off)
• RXD M-Bus data transfer
• TXD M-Bus data receive