NET WIZARDS

    M-Bus Data Concentrator NW-MBC-64E

    Wired M-Bus master that powers and reads up to 64 water, gas or heat meters and delivers normalised readings over MQTT, HTTPS or TCP via Ethernet, 4G or NB-IoT.

    M-Bus Data Concentrator NW-MBC-64E by NET WIZARDS, main product view
    Edge Computing and Gateways

    M-Bus Data Concentrator NW-MBC-64E

    The NW-MBC-64E is a wired M-Bus (EN 13757-2/-3) master and data concentrator designed by NET WIZARDS and engineered with WOM Technologies. It powers and polls up to 64 water, gas or heat meters daisy-chained on one two-wire bus, decodes each manufacturer's telegram into a normalised reading and delivers it over MQTT, HTTP(S) or TCP to the NET WIZARDS cloud platform or any Meter Data Management (MDM) system for billing and analytics. Ethernet is standard. A Mini PCIe expansion slot accepts a 4G LTE or NB-IoT / LTE-M module, so the same unit serves LAN-connected plant rooms and cellular-only sites. Typical applications: Residential towers and compounds: one concentrator per riser or per three floors reads apartment water meters for sub-billing by the developer, owners' association or utility. Industrial and commercial estates: tenant-level water, gas and chilled-water heat meters consolidated into one MQTT feed for the facility energy and billing platform. District and utility networks: bulk and boundary meters in pump rooms and valve chambers, with 4G or NB-IoT backhaul where no LAN exists.
    Standard
    EN 13757-2 (physical / link), EN 13757-3 (application); compatible with EN 1434-3 meters and OMS wired profiles
    Capacity
    64 unit loads (64 x 1.5 mA) = 64 meters on one bus; automatic load adjustment
    Bus voltage / current
    Mark 36 V DC / Space = Mark - 12 V; max. bus current 120 mA; internal resistance up to 10 ohm
    Baud rates
    300 / 600 / 1200 / 2400 / 4800 / 9600 bps, 8E1; automatic baud-rate detection per meter
    Request Quote Datasheet

    Key Specifications

    Detailed datasheet available on request.

    M-Bus Master Interface

    Standard
    EN 13757-2 (physical / link), EN 13757-3 (application); compatible with EN 1434-3 meters and OMS wired profiles
    Capacity
    64 unit loads (64 x 1.5 mA) = 64 meters on one bus; automatic load adjustment
    Bus voltage / current
    Mark 36 V DC / Space = Mark - 12 V; max. bus current 120 mA; internal resistance up to 10 ohm
    Baud rates
    300 / 600 / 1200 / 2400 / 4800 / 9600 bps, 8E1; automatic baud-rate detection per meter
    Addressing
    Primary (1-250), secondary (ID / manufacturer / version / medium), wildcard search, broadcast
    Protection
    Short-circuit and over-current cut-off with automatic recovery; ESD 12 kV (contact), surge 1 kV line-to-line
    Cable / distance
    Unshielded 2-wire, 0.5-1.5 mm2; up to 1000 m per segment at 2400 bps (longer at 300 bps or with repeater)
    Connection
    Pluggable screw terminal, 3-pole (M+, M-, shield), polarity-free

    Uplink Communication

    Ethernet (standard)
    2 x 10/100BASE-TX, RJ45, auto-MDI/X (WAN + LAN pass-through); IPv4 (IPv6), DHCP client / static; NTP time sync
    Cellular (modular)
    1 x Mini PCIe slot + 1 x nano-SIM; 4G LTE Cat-1 / Cat-4 with 3G/2G fallback, NB-IoT (Cat-NB1/NB2) / LTE-M (Cat-M1); GCC bands LTE B1/B3/B8/B20/B28, NB-IoT B8/B20
    Antenna
    1 x SMA (female) for cellular; optional external antenna for pits / basements
    WAN failover
    Ethernet primary, cellular backup (configurable)

    Data and Protocols

    Head-end protocols
    MQTT 3.1.1 / 5.0, MQTTS (TLS 1.2), HTTP / HTTPS POST (JSON), raw TCP client; optional Modbus TCP server
    Payload
    Normalised JSON per meter: ID, manufacturer, medium, volume, flow, reverse volume, status / alarm flags, battery, timestamps, RSSI; raw telegram pass-through optional
    Meter profiles
    Generic EN 13757-3 decoder plus Diehl, Kamstrup, Integra, Itron, Sensus, Zenner, Axioma, Apator and Relay PadPuls profiles; custom profiles during integration
    Readout schedule
    1 min to 31 days, global or per meter; on-demand read via MQTT command; retries and time-outs per meter
    Local storage
    Store-and-forward ring buffer of at least 100,000 readings (about 60 days of hourly reads for 64 meters); event log
    Security
    TLS 1.2 with server / client certificates, per-device credentials, HTTPS web UI with role-based users, signed firmware
    Management
    Embedded web UI, NET WIZARDS cloud device management, OTA firmware and profile update, configuration backup / restore

    Hardware and Power

    Processor
    32-bit industrial SoC
    Indicators
    4 x LED: Rx, Tx, Power, Uplink; RJ45 link / activity LEDs
    Service port
    USB / console for local configuration and recovery
    Power supply
    9-36 V DC (24 V DC nominal); reverse-polarity and surge protected; optional 100-240 V AC adapter / DIN PSU
    Power consumption
    Typ. 3 W idle, max. 8 W with 64 loads and cellular TX

    Mechanical and Environmental

    Installation
    Wall mount (fastening triangle) or 35 mm DIN rail clip
    Enclosure
    PC+ABS alloy, UL94 V-0, fire-retardant, low CIH, EN 60695-2-11
    Dimensions
    116 x 173.9 x 50 mm (W x H x D)
    Ingress protection
    IP51 (IEC 60529); IEC 61140 class II
    Weight
    Around 350 g without package / antenna
    Temperature
    Operating -25 to +70 C; limit range -40 to +85 C; storage -40 to +85 C
    Humidity
    5-98 % RH at 50 C, non-condensing

    Compliance and Reliability

    EMC / safety
    IEC/EN 61000-6-2, -6-4; IEC 61000-4-2/-3/-4/-5/-6/-8; EN 62368-1; CE / RED; UAE TDRA type approval (cellular variants)
    Environment
    WEEE 2012/19/EU, RoHS 2011/65/EU
    MTBF
    More than 200,000 hours
    Warranty
    3 years

    Ordering Information

    NW-MBC-64E
    64 unit loads, 2 x Ethernet, Mini PCIe slot (empty), wall / DIN rail, 9-36 V DC
    NW-MBC-64E-4G
    With 4G LTE Cat-4 module and antenna fitted
    NW-MBC-64E-NB
    With NB-IoT / LTE-M module and antenna fitted
    NW-MBC-PSU-24
    100-240 V AC to 24 V DC power adapter
    NW-MBC-CLOUD
    Cloud device management and MDM integration licence (per device / per year)

    Product Features

    Engineered for industrial reliability and long-term TCO.

    64 meters on one bus

    EN 13757 M-Bus master for up to 64 unit loads with automatic load adjustment, per-meter baud-rate search and primary or secondary addressing.

    Meter-profile engine

    Decodes manufacturer-specific telegrams from Diehl, Kamstrup, Itron, Sensus, Zenner, Axioma, Apator and more into one normalised JSON payload, with new profiles loaded in the field.

    Ethernet plus modular cellular

    Two RJ45 Ethernet ports as standard and a Mini PCIe slot for 4G LTE or NB-IoT / LTE-M, with Ethernet primary and cellular backup.

    Secure cloud delivery

    MQTT, HTTPS or TCP with TLS 1.2, per-device credentials and signed firmware, to the NET WIZARDS cloud or any MDM.

    Store-and-forward buffer

    Keeps 100,000+ readings during WAN outages and clears them only after the platform acknowledges receipt.

    Rugged and easy to install

    Wall or DIN rail mount, polarity-free two-wire bus, short-circuit protection, IP51, -25 to +70 C operation, 3 year warranty.

    Solution Architecture

    How M-Bus Data Concentrator NW-MBC-64E integrates into a complete NET WIZARDS architecture.

    Data flow

    Where M-Bus Data Concentrator NW-MBC-64E fits, from field to decision

    1. Field devices

      PLCs, meters, fire panels and controllers

    2. M-Bus Data Concentrator NW-MBC-64E

      Protocol conversion and edge processing

    3. Backhaul

      Ethernet, 4G, NB-IoT or satellite

    4. Cloud platform

      Industrial Cloud Platform, dashboards, alerts and API

    5. Operations

      Control room, mobile alerts, reports and integrations

    Used in:Industry 4.0 plants Connected buildings Utilities and energy

    Integration Overview

    Typical residential-tower deployment: apartment water meters on each floor are daisy-chained on a two-wire M-Bus. One NW-MBC-64E per three floors (or per riser, up to 64 meters) powers the bus, reads every meter on schedule and pushes normalised readings over the building TCP/IP network to the Internet and on to the NET WIZARDS cloud platform / MDM for billing, leak analytics, alerts and the consumer portal. Where no LAN exists, the Mini PCIe 4G or NB-IoT module takes over the uplink. Readings are time-stamped, buffered locally and only cleared after the platform acknowledges them.

    Connectivity Architecture

    Device data flow of M-Bus Data Concentrator NW-MBC-64E, from field devices through the uplink options to the cloud platform.

    M-Bus Data Concentrator NW-MBC-64E connectivity architecture showing device data flow to the cloud platform

    Downloads

    Datasheets, manuals and technical documentation.

    Product Datasheet
    PDF · Technical specifications
    User Manual
    Available on request

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