Not sure if this is right for your project?
Before you spec it, talk to an engineer. We'll tell you honestly whether this product is the right call — and if it isn't, we'll point you to one that is. Free. No obligation.
Get a free project consultation →M-Bus Converter RS485
About the product
NOTE: This product supports only BUS Network Topology on the MBus port.
Any other network topology is not supported and could cause errors on the network.
The M-Bus is a bus optimized for the reading of measurement instruments like energy counters, hot and cold water counters, gas, pressure, sensors and actuators, etc. Nowadays, more and more manufacturers implement the M-Bus interface in their counters, making it the ideal basis for remote reading applications. Our M-Bus Master (M-Bus converter) is universal and simple M-Bus Master that can be connected up to 250 M-Bus devices. This device also convert M-Bus signal to RS232 or RS485 so basically you can integrate this device in your remote data acquisition systems with ease.
Main features:
 - RS485  transmission direction: Automatic
 - MAX amount of M-Bus devices: Up to 250 units of any M-BUs devices (375mA)
 - M-Bus short connection protection: Yes
 - Power supplier: 90-250V ~, 50-60Hz
 - Mounting type: on DIN rail
| Description | M-Bus to RS232 / RS485 converter technical specification |
|---|---|
| M-Bus permissible load | up to 250 units of any M-Bus devices (375 mA) |
| RS485 / RS232 direction control | Auto |
| Protection of MBus short connection | Yes, triggering current 500 mA |
| Short connection reaction time | Programmable - 1 - 4s (recover 10 - 60s) |
| M-Bus line voltage | Mark - 36 - 40 V. Space 24 - 27 V |
| Data transfer speed | From 300 to 9600 bods |
| Galvanic isolation | Power– RS232 / RS485 Power – M-Bus M-Bus - RS232 / RS485 |
| Insulation breakdown voltage | > 1,5 kV |
| Power supplier | 90-250V~, 50-60Hz |
| Power consumption | Not loaded up to 3,5W, fully loaded up to 20W |
| Indication | LED |
| Enclosure | DIN rail mountable |
| Dimensions | 45 mm x 75 mm x 110 mm |
| Operating conditions | From - 30 oC to + 50 oC / 80 % RH, without condensate |
Do you have a question about this product?
Delivery times
For UK clients, we deliver all goods ordered by 14:00 on the next working day, subject to stock availability.