Wired M-Bus Module| ECL-MBUS
ECL-MBUS is designed mainly for use in remote water meter reading…
Wireless M-Bus Module| ECL-WMBUS
ECL-WMBUS is designed mainly for use in remote wireless water meter…

Which M-Bus – OMS Module is better for my project?

ECL-MBUS ECL-WMBUS
Connectivity
  • Wired
  • Wireless
Physical
  • 41x10x24,5mm
  • 41x10x24,5mm
Environmental
  • -35… +75 C operating temperature
  • -35… +75 C operating temperature
Power Input
  • +12VDC supply max: 500mA for M-Bus
  • 3.3VDC for TTL interface
  • +3.3 VDC supply max:50mA
Serial Interface
  • 3V3 TTL UART
  • Baud Rate : 300bps-19200bps
  • 3v3 TTL UART
  • Baud Rate : 115200bps
M-Bus Interface
  • 35,5 VDC Bus voltage
  • Max Output Current 110mA
  • Max current requirement of 1.5mA per slave
  • Up to 1 km cable length
  • 433,868,915MHz ISM
  • TX at +10 dBm: 13.4 mA
  • Receiver Sensitivity -124 dBm Using Long-Range Mode, -110 dBm at 50 kbps
  • Selectivity (+,- 100kHz): 56 dB
  • Blocking Performance (+,- 10 MHz):90 dB
  • Programmable Output Power up to +15 dBm
  • Single-Ended or Differential RF Interface
  • Suitable for Systems Targeting Compliance with Worldwide Radio Frequency Regulations
  • U.FL socket connector
  • Optional Chip antenna support
# of Slaves Max 64 Slaves
Stack Support
  • T1, C1, T2, C2 Modes
  • Ready M-Bus stack

M-Bus OMS Modules

Meter Bus or M-Bus is a standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for remote reading of water, gas or electricity meters. In more detail, M-Bus was developed to eliminate the need to go by the meters to collect energy consumption data. Thanks to M-Bus, remote measurement of electricity, water and natural gas meters is provided very easily. Digital data of the utility network is collected in the M-Bus device and the meter consumption data is transferred to the IT network.

M-Bus OMS communication technology is classified as wired and wireless.

Wired M-Bus Module

M-Bus is a hierarchical system, consisting of a master, a number of slaves and two-wire connecting cable. All M-Bus equipment meters (slaves) are connected in parallel to the master through the transmission medium (cable). Current flows in master-slave direction with a change of 12 V, and in the answering direction with at least 11 mA. This allows remote powering of slaves and insensitivity to external interference besides serial communication.

Wireless M-Bus Module

Wireless M-Bus (wM-Bus) is an open standard developed for smart metering and Advanced Metering Infrastructure (AMI) applications. Wireless M-Bus network is based on a star topology network with master and slave devices described in the EN 13757 standard. Eclipse wireless M-Bus stack supports all the S, T, R and C (868 MHz), F (433 MHz) and N (169 MHz) operating modes. Eclipse modems support low power battery operation, that will allow long battery life time up to 5-10 years, depending on the water meter reading application scenario.

M-Bus OMS Modules

Eclipse M-Bus OMS module supports open, vendor independent communication interfaces and basic requirements for water metering developed according to standard Open Metering System specification of OMS-Group.