MR006DL M-Bus data logger for 20 meters with LCD and RS232C

MR006DL enables local reading and automatic data logging from 20 M-Bus meters.

MR006DL is a compact and independent M-Bus data logger designed for central reading and data archiving from up to 20 M-Bus devices (20 unit loads). The device combines several practical functions in one housing: local operation via a keypad, direct data display on a backlit 2×16 LCD, RS232C communication and automatic logging of readings in internal memory. Thanks to this, MR006DL is a strong choice for billing installations, utility monitoring and systems where meter readings must be archived without the permanent presence of a computer.

From the perspective of an integrator and service engineer, MR006DL is a practical solution because it combines centralized access to M-Bus meter data with local value preview and remote communication through RS232C. This is a device for projects where easy deployment, convenient servicing and reliable readout history are required without a complex IT infrastructure.

MR006DL for local M-Bus meter reading without a laptop

One of the most important advantages of MR006DL is the ability to read data locally without using a laptop. The built-in keypad and 2×16 LCD make it possible to select a meter from the list and quickly preview values directly on site. This significantly simplifies commissioning, routine inspections and service tasks in facilities where meters are read centrally, but quick data verification is still required.

In practice, MR006DL allows technical staff and building operators to check meter readings from one point, without entering every apartment or technical room. This is particularly useful in residential buildings, hotels, commercial facilities and billing installations, where service time matters.

Automatic data logging from 20 M-Bus devices

A key feature of MR006DL is the periodic reading and storage of M-Bus telegrams in the device memory. This makes it possible to build a history of consumption and events for multiple meters without maintaining a permanent PC connection. It is a highly practical solution for systems where data must be archived locally and readouts retrieved only at selected intervals.

The device supports a wide range of logging intervals, from short minute-based cycles to daily, weekly, monthly and yearly schedules. This gives strong flexibility when matching the logging frequency to the installation type and to the requirements of billing or utility monitoring.

RS232C DB9 for PC and MODEM and integration with the supervisory system

MR006DL provides RS232C communication through two DB9 connectors: one dedicated to PC and one dedicated to MODEM. This architecture simplifies integration with a service computer or a remote access path when data must be retrieved without the operator being physically present at the device. Only one of these connections can be active at a time, which helps maintain organized and predictable communication.

Another advantage is the possibility of using MR006DL as a transparent RS232C - M-Bus level converter when the device is not performing local operation or automatic reading. From a project perspective, this means more flexibility when integrating with supervisory systems that also want to use the device as the physical communication layer for M-Bus meters.

Stable bus operation and convenient diagnostics

MR006DL is designed for operation in networks of up to 20 unit loads, ensuring stable communication in typical small and medium-sized M-Bus installations. Local operation through the keypad and display speeds up diagnostics, while stored data enables later analysis of readings without the need for permanent supervision by computer software.

In practice, this means easier servicing, simpler validation of correct operation and faster identification of problems in installations where continuity of data archiving is important. This is one of the features that becomes especially valuable when the device is expected to work reliably for a long time as a central data collection point.

DIN rail mounting and power supply for technical applications

MR006DL is designed for DIN rail mounting, which makes it easy to integrate into control cabinets and central meter reading points. The power supply range includes 10..28 VDC or 13..28 VAC, making it easy to adapt the device to typical power infrastructure in technical facilities. The IP20 housing is suitable for standard indoor installation conditions.

Product features

• M-Bus data logger for up to 20 meters,
• local operation via keypad and backlit 2×16 LCD,
• automatic logging of M-Bus telegrams in internal memory,
• RS232C interface through DB9 connectors for PC and MODEM,
• can operate as a transparent RS232C - M-Bus level converter,
• central reading and data archiving without a permanently connected computer,
• DIN rail mounting in control cabinets and metering points,
• wide power supply range of 10..28 VDC or 13..28 VAC,
• compact IP20 housing for indoor applications.

Technical specification

• Model: MR006DL
• Device type: M-Bus data logger
• Maximum number of M-Bus devices: 20 unit loads
• Local operation: keypad and backlit 2×16 LCD display
• Serial interfaces: RS232C PC (DB9), RS232C MODEM (DB9)
• Additional function: transparent RS232C - M-Bus level converter
• Data logging: automatic storage of readings in FLASH memory
• Available logging intervals: from 1 minute up to yearly schedules
• Data memory: 1 MB standard, optionally 2 MB or 4 MB
• Power supply: 10..28 VDC, 5 W or 13..28 VAC, 9 W
• Operating temperature range: 0..+45°C
• Storage temperature range: -10..+60°C
• Humidity: 10..70% non-condensing
• Dimensions: 105 × 94 × 58 mm
• Protection rating: IP20
• Mounting: DIN rail

MR006DL is a very practical choice for installations where you need to combine central M-Bus meter reading, local data preview, automatic logging and RS232C communication in one compact device. It is especially well suited to billing projects and technical metering points where simplicity, stability and convenient service access matter.

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