Product overview

The CMe3100 is, directly out of the box, a powerful and versatile M-Bus Metering gateway. It can be extended in several ways using a flexible model for license and add-on upgrades.

While there are many ways to utilize the potential in the CMe3100, its core application areas are:

Additionally, all features can be used in a mix to address application specific needs. It also fully supports all types of utility meters that are M-Bus or Wireless M-Bus compliant.

For standard applications with a medium requirement for integration, the CMe3100 is very quickly setup using its predefined readout schedules and metering reports (Push Reports). Once the meters have been installed, the device can be configured to readout meter values at specific time intervals and compile them in a suitable report format to be sent to a receiving system. Reports are transmitted using standardized internet protocols, such as SMTP (e-mail), FTP, HTTP or MQTT.

Thanks to the device’s built-in M-Bus decoder, meter values can be delivered in a human readable form with correct precision and unit.

The built-in database, storing all meter values locally in the CMe3100, provides a solid base for its system robustness. All Push Reports have intelligent retry mechanisms that automatically schedules retries for failed reports including all values for which previous transmissions have failed.

The built-in database also enables excellent and reliable options for local integration with a Digital Control System (DCS) or a Programmable Logic Controller (PLC). These types of system components are usually found in real-estate systems to control, for example heat and ventilation. Interfacing systems may choose to connect using BACnet, Modbus, M-Bus, or JSON (TCP/IP) to retrieve meter values directly from the CMe3100 without affecting its normal operation or having to communicate with the M-Bus meters directly.

If the CMe3100 is used in a mixed application with metering reports and high demand for real-time meter values being supplied to a PLC or a DCS, there is an additional mode available, Continuous Readout Mode. When activated, the CMe3100 reads all meters as frequent as possible and makes the readouts available to interfacing systems but without affecting the reporting mechanism. This enables metering reports to be configured independently from how the interfacing system’s meter value requirements.

Metering and local integration with DCS

For demanding applications that require vertical integration, the CMe3100 supports the REST or DLMS protocols. Using these protocols, meter values and configuration settings are available without having to bother about specific details of the M-Bus metering format. A head-end system may access most current readouts, historical values as well as log information, Meter Lists and change notifications. CMe3100 is certified by DLMS organization.

The built-in database, storing all meter values locally in the CMe3100, provides a solid base for its system robustness as historical meter can be recovered by the head-end system at any time.

Full Gateway integration