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HWg-PWR is a smart Ethernet gateway for remote energy metering and consumption monitoring. To measure the consumption of water, electricity and other energies, external meters with the M-Bus interface are used. Up to 3 / 12 / 25 M-Bus meters can be connected to the HWg-PWR unit. Individual meters (electricity meter, water meter, gas meter, heat meter etc.) are produced by third parties and connected via their M-Bus interface. HWg-PWR is a smart gateway that monitors energy consumption and warns about abnormal values The unit provides a Web interface, charts, SNMP and Modbus/TCP output, data logging, e-mail and SMS alerts, and much more.
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HWg-PWR 3/12/25 monitors energy consumption using standard external energy meters produced by well-known manufacturers. It is possible to mix electricity meters, water meters, gas meters etc. by different manufacturers. Depending on version, HWg-PWR supports 3, 12 or 25 external meters with the M-Bus interface (EN 13757). HWg-PWR 3 / 12 / 25 – Energy monitoring gateway:
Advantages of using third-party M-Bus meters
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Features
Online demo- Ethernet: RJ45 (100 Mbit)
- WEB: Built-in Web server, charts
- Data input: 3 / 12 / 25 external meters equipped with the M-Bus (EN 13757-2) interface
- M-Bus power: Meters powered from HWg-PWR
- M-Bus standards: EN 13757-2 (physical layer) & EN 13757-3 (application layer)
- Variables (data points): Up to 100 different variables from all (max. 25) meters
- M-Bus: Automatic detection of meters and available values
- Digital inputs: 8x Digital Input for 110/230V phase failure detection (senses tripped circuit breakers)
- Data logging: 170,000 values (3 values every 15 minutes = 590 days)
- Power: 110 or 230V AC
- Mechanical: Fits on a DIN rail
- M2M communication protocols: SNMP, XML, Modbus/TCP
- Response to thresholds: SNMP trap, E-mail, SMS (via SMS-GW)
- Portal: HWg-Push protocol, supports
- Graphs: Logging of values with the option to plot graphs
- Counter: Independent counter for periodic consumption readouts (daily, weekly, monthly, annually, …)
- Report: Periodic e-mailing of measured values
SMS Gateway: Device can send SMS by external "HWg-SMS-GW" without any software.
- Support for programmers: HWg SDK
- Supported software
- HWg-PD Trigger: Control of other IP devices, alarm redirection to SMS
- HWg-PDMS: Logging, export to MS Excel
- >> Third-party SNMP software
(HP OpenView, IBM Tivoli, Nagios, Zabbix, Cacti, Monitor one, The Dude, Paessler IPCheck, Ipswitch WhatsUp, Axence nVision, CBR little:eye, LoriotPro, GFi NSM, SNMPc 7, CA NSM, ActiveXperts NM, Intellipool NM, MSC Operations Manager 2007)
External M-Bus meters (third-party products)
- Values available over M-Bus depend on the meter – we recommend to always check the supported values with the manufacturer!
- Support for certified and calibrated meters
- Support for single-phase and polyphase electricity meters
- Support for single-tariff and multi-tariff meters
- Current transformers enable measurements of high currents
- Examples of typically available values:
- Instantaneous power input
- Total consumption
- Line voltage
- Line current
- Power factor (cos φ)
- Flow speed
| Inputs | Power | Web | M2M outputs | |||||||
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| M-Bus meters | M-Bus variables | Digital inputs | Modbus/TCP SNMP |
SMS GW | E-mail report | HWg-Push | ||||
| HWg-PWR 3 | 3 | Max 100 | 8x 110/230VAC | 110/230VAC |  |
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| HWg-PWR 12 | 12 | Max 100 | 8x 110/230VAC | 110/230VAC | |
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| HWg-PWR 25 | 25 | Max 100 | 8x 110/230VAC | 110/230VAC | |
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| HWg-PWR Old model – no longer in production |
3 | Max 30 | 3x Dry Contact | 230V | |
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M-Bus or S0 pulse counter
S0 is a legacy system of counting pulses that correspond to a certain amount of energy.
The M-Bus interface is the current standard for energy metering. Unlike pulse counting (S0), it works with absolute values (that can be used for customer billing). In addition, M-Bus provides more values, such as the immediate current and voltage, cos φ, and so on.
An S0 to M-Bus converter can be used to connect S0 devices:
- HWg-CS52: M-Bus and S0 pulse counter energy metering
- HWg-CS33: S0 pulse counter with SNMP & Modbus/TCP output
M-Bus meter manufacturers
Caution: We recommend to always check and test what values does the manufacturer guarantee at the M-Bus interface.
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Gas meters |
Water meters |
Heat meters |
Electricity meters |
Other accessories |
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| ABB | – | – | – | TESTED |
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| AllMess | – | |
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| Aquametro | – | |
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| Bmeters | – | |
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| Carlo Gavazzi | – | – | – | |
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| DEIF | – | – | – | TESTED |
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| DIEHL | – | – | TESTED |
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| EIZ – SCHRACK | – | – | – | TESTED |
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| Elster | – | – | – | |
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| Elvaco | – | – | – | |
TESTED |
| EMH | – | – | – | |
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| EMU | – | – | – | |
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| Günther Schell | – | – | – | – | TESTED |
| GMC-I | – | – | – | |
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| GWF | |
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TESTED |
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| IME | – | – | – | |
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| Inepro / DMMetering | – | – | – | |
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| ISKRAEMECO | – | – | – | |
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| ista | – | |
TESTED |
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| Itron | |
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| Janitza electronics | – | – | – | Resource & Download
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PHỔ BIẾNHOT NEWS |
Supported M-Bus meters
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Graphs: 
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