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EthMBus-3SL SMART, Base line
Ethernet to M-Bus communication converter
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Converter for SMART metering
Designed for remote communication with M-Bus meters using the Ethernet computer network in building or home automation and similar applications.
In the Smart M-Bus mode the converter works as a server.
It communicates with the M-Bus meters independently, processes their data and stores it in its own memory.
The meter data is simultaneously available in form of:
- table on a webpage
- xml, xml(REST) and csv export
- M-Bus protocol communication
- e-mail with attached xml, csv exports
- exports uploaded to an FTP server
In the basic mode the converter works as a transparent gateway for transfer of M-Bus messages using TCP or UDP Ethernet protocols.
Main characteristics
M-Bus port
- Connection of 1 to 3 M-Bus slave devices.
The most commonly used devices are heat, water, gas and electricity consumption meters.
- Surge protection with standard level of protection against overvoltage.
- Current protection against overload and short circuit on the communication line with LED status indication.
Power supply
- Wide power supply operating ranges of 8,5-36V DC and 8-26V AC (converter version 4 and higher).
- Overvoltage protection.
- LED power supply indication.
Ethernet
- TCP, UDP protocols and virtual COM port software.
- 10/100BASE-TX ethernet port, RJ45 connector.
Mechanical construction
- Plastic box with mounting on 35 mm DIN rail.
Main software characteristics
Transparent gateway mode:
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TCP/IP connection
- server or client mode
- backup IP addresses for connection
- connection to a web address (DNS)
- UDP connection
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Smart M-Bus application mode:
- web page with meter data
- xml, xml(REST), csv exports
- e-mails with exports and service information
- exports uploaded to an FTP server
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Software functions
- Configuration of the converter through a web interface or Telnet.
- TCP and UDP communication in server or client mode including
connection backup IP addresses.
- DNS support (host name instead of IP)
- Logging of Ethernet activity and error states.
- Search for meter addresses and their change (meter must support this functionality).
- Success rate statistics for communication with individual meters.
Main differences from the EthMBus-5 SMART converter
- Connection of 3 M-Bus slave devices.
- Considerably smaller mounting width on the DIN rail.
- Less powerful overvoltage protections on the M-Bus line and the power port.
- Less powerful M-Bus line driver. Maximum length of the M-Bus line is in range of tens of meters.
- Smaller range of operating temperatures.
Main differences from the EthMBus-3SL LITE converter
- SMART functions for independent readout, processing and export of M-Bus data.
- Offers data in form of a webpage table, XML, XML(REST) or as CSV exports.
- Offers ability to send data via e-mail attachments or as exports to FTP.
- Offers Telnet interface.
- Offers logging of Ethernet activity and error states.
- Offers functionality for searching and setting meter addresses.
- Ability to set backup IP addreses for TCP/IP connection.
Guarantee of quality
- Each converter passes through several functional electrical tests during the production.
Additionally a communication test is performed after final assembly.
- EMC certification in an accredited laboratory for industrial environment.
- Solid design and construction based on many years practical experience.
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| Communications interface | 10BASE-T or 100BASE-TX (auto-sensing) |
| Communication protocols | ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, SNMP |
| Connector | RJ45 |
| Compatibility | Ethernet: Version 2.0/IEEE 802.3 |
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| Number of devices that can be connected | 1 to 3 SLAVE devices, idle current max. 4.5mA |
| Baud rate | 300 - 9600 bps |
| Protection | - overvoltage protection TVS 400W |
- electronic protection against overloads and short circuit on the communication line |
note: converter can withstand temporary short circuit on the communication line |
| Galvanic separation | up to 1kV from power supply, more than 1kV from Ethernet |
| Connector | terminals for wires of up to 2.5mm2 cross-section area |
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| Recommended range of power supply voltages, note: applies to converter version 4 and higher. |
| DC power supply | 8.5V to 36V |
| AC power supply | 8V to 26V |
| Maximum limits of supply voltage - permanent operation at these voltages is not recommended |
| Minimum power | 8V DC, 7.5V AC |
| Maximum power | 39V DC, 27V AC |
| Protection | overvoltage protection TVS 400W |
| Power consumption | 1.5W to 2.2W. Depends on M-Bus line load and communication. |
| Maximum consumption during M-Bus line short is 3.3W. |
| Connector | terminals for wires of up to 2.5mm2 cross-section area |
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| Power - blue | indication of connected supply voltage |
| Transmit - green | indication of data transmission on the M-Bus line |
| Receive/Overload - yellow | indication of data reception on the M-Bus line - LED is flashing |
| indication of M-Bus line overload - LED stays on (idle current > 7.5mA) |
| Short - red | indication of short on the M-Bus line – turned on (resistance of the line < 1kΩ) |
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| Operating range | 0°C to 45°C |
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| Mechanical design | plastic box |
| Mounting | 35 mm DIN rail (EN 50022 top hat rail) |
| Dimensions: height x width x length | 56.5 x 17.5 x 97.5mm |
| Protection classification | IP20 |
| Weight | 52g |
EMC compatibility of the M-Bus converter has been tested according to the following standards for IT environments.
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| Standard | Test | Level |
| EN 55022 | Power line - CONDUCTED EMISSIONS 10/150 kHz - 30 MHz | Class B |
| EN 55022 | RADIATED EMISSIONS (Electric Field) 30 MHz - 1000 MHz | Class B |
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| Standard | Test | Level |
| EN 61000-4-2 | ELECTROSTATIC DISCHARGE (ESD) - Contact discharge | ± 4 kV |
| EN 61000-4-2 | ELECTROSTATIC DISCHARGE (ESD) - Air discharge | ± 8 kV |
| EN 61000-4-4 | ELECTRICAL FAST TRANSIENT/BURST - Power line | ± 4 kV |
| EN 61000-4-4 | ELECTRICAL FAST TRANSIENT/BURST - M-Bus line | ± 4 kV |
| EN 61000-4-5 | SURGE IMMUNITY - Power line. Common/differential mode. | ± 1 kV / ± 0.5 kV |
| EN 61000-4-5 | SURGE IMMUNITY - M-Bus line. Cable shielding. | ± 4 kV |
| EN 61000-4-5 | SURGE IMMUNITY - M-Bus line. Common/differential mode.* | ± 1 kV / ± 0.5 kV |
| EN 61000-4-6 | CONDUCTED DISTURBANCES, INDUCED BY RADIO-FREQUENCY | 3 V |
| FIELDS 0.15MHz - 80 MHZ. Power line and M-Bus line. |
* test carried out at the request of the manufacturer.
The M-Bus port has an increased durability against overvoltage. Carrying out this type of test is not required with the use of shield cable.
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End user
Price list for individuals and companies
which do not buy converters for resale.
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Integrator
Price list for companies which buy converters for the purpose of resale
to their custommers as manufacturers or suppliers.
The price list is available only to registered business partners.
Registration request.
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Promotional leaflet
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Download
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EthMBus3SL_SMART_flyer_v1_4_EN.pdf
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20.4. 2021
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384 kB
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Manuals for new converters with Smart firmware
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Short overview of modes and functions
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Download
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Ethernet_SMART_features_flyer_v0_13_EN.pdf
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19.10. 2016
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640 kB
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Manual
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Download
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EthMBus3SL_SMART_manual_v1_5_EN.pdf
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20.4. 2021
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1.23 MB
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Web Interface manual
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Download
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Ethernet_SMART_Web_Interface_v0_52_EN.pdf
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29.11. 2019
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2.29 MB
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Telnet Setup manual
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Download
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Ethernet_SMART_Telnet_v1_29_EN.pdf
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29.11. 2019
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1.23 MB
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Data exports manual
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Download
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Ethernet_SMART_exports_v1_04_EN.pdf
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2.8. 2016
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1.06 MB
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Readout software
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Excel® file for M-Bus data collection and processing
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Download
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JC-E_readout_v11_6_EN.xlsm
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16.3. 2018
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228 kB
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Manual for the data collecting Excel® file
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Download
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JC-E_readout_xls_manual_v1_12_EN.pdf
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11.1. 2023
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2.13 MB
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Legacy manuals for old converters
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Manual (applies to converter versions 1, 2, 3)
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Download
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EthMBus3SL_SMART_manual_v1_3_EN.pdf
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25.3. 2019
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1.19 MB
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Lantronix utilities
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Top view
Typical application
Typical wiring of the converter with M-Bus devices, power supply and Ethernet network connection to a computer.
LED indication
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| Power |
Indication of connected supply voltage. |
blue |
| Transmit |
Indication of data transmission on the M-Bus line. |
green |
| Receive/Overload |
Indication of data reception and overload on the M-Bus line |
yellow |
- indication of data reception on the M-Bus line - LED is flashing |
- indication of M-Bus line overload - LED stays on (idle current > 7.5mA) |
| Short |
Indication of a short on the M-Bus line - LED turned on (resistance of line < 1kΩ). |
red |
Connectors on the M-Bus side
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M-Bus |
Connector for the M-Bus line. |
built-in |
Power |
Connector for power supply. |
built-in |
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Power supply terminal. |
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Power supply terminal. |
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Earth ground terminal. |
Connectors on the Ethernet side
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| Ethernet RJ45 |
Connector for Ethernet. |
RJ45 |
| Link |
10Mbps connection speed |
orange |
| 100Mbps connection speed |
green |
| Rx/Tx |
Half-duplex | orange |
| Full-duplex |
green |
Web Interface
M-Bus meter table
Dimensions
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Slovensky
English
EthMBus-XL SMART
EthMBus-3SL SMART
