HW-group PWR: M-Bus gateway for energy monitoring
€422.50
HW-group PWR: M-Bus Gateway for Energy Monitoring
The HW-group PWR from HW group is an advanced M-Bus gateway designed for precise energy monitoring and remote monitoring of utility meters.
Available in three versions – HWg-PWR 3, HWg-PWR 12, and HWg-PWR 25 – it supports up to 3, 12, or 25 external utility meters for electricity, water, gas, or heat via the standardized M-Bus interface (EN 13757).
With seamless integration into the SensDesk Portal, the HW-group PWR offers a user-friendly solution for IoT monitoring in data centers, commercial properties, and industrial facilities. It ensures transparency, efficiency, and cost savings through accurate energy consumption measurement.
The Importance of Energy Monitoring
In an era of rising energy costs and strict environmental regulations, precise monitoring of energy consumption is essential. The HW-group PWR enables real-time acquisition of consumption data to detect irregularities such as excessive usage or device failures at an early stage. Especially in sensitive environments like server rooms, where server room monitoring is critical, the device protects against power outages and optimizes energy efficiency, reducing operational costs and strengthening sustainability.
The Three Versions of the HW-group PWR
The HW-group PWR is available in three models, differing in their capacity:
- HWg-PWR 3: Supports up to 3 M-Bus meters and is ideal for smaller installations such as offices, small server rooms, or individual rental units. It offers a compact, cost-effective solution for precise monitoring.
- HWg-PWR 12: Designed for medium-sized applications with up to 12 meters. Suitable for larger server rooms, office buildings, or production facilities with multiple consumption points.
- HWg-PWR 25: The most powerful version for up to 25 meters, ideal for large data centers, industrial plants, or shopping centers with high monitoring requirements.
All versions offer the same core features, including M-Bus interface, SensDesk Portal integration, and support for M2M protocols (Modbus/TCP, SNMP, XML), but differ in scalability.
Technical Features
The HW-group PWR is a robust M-Bus gateway that supports vendor-independent utility meters for electricity, water, gas, or heat. It features an Ethernet port (RJ45, 100 Mbit/s) and a password-protected web interface for graphical data visualization (e.g., charts) and data export in Excel-compatible formats.
The device processes up to 100 data points per meter and stores up to 170,000 values (e.g., 3 values every 15 minutes for 590 days), enabling detailed consumption analysis. Eight digital inputs (dry contacts) detect power failures on single-phase 110/230 V AC connections. Power is supplied via 110/230 V AC, with the device directly powering the meters.
Integration with the SensDesk Portal
Integration into the SensDesk Portal makes the HW-group PWR a powerful tool for IoT monitoring. This cloud-based platform enables real-time monitoring, alarm configuration, and detailed reporting. SNMP alarms, email, and SMS notifications (via an optional HWg-SMS-GW3 gateway) provide alerts for threshold violations or failures. Features such as PDF reports, graphical evaluations, and a mobile app (iOS/Android) support remote monitoring from anywhere.
Advantages of M-Bus Technology
The M-Bus interface (EN 13757) enables reliable, vendor-independent communication with utility meters, including those for high currents (up to 1000 A). The technology is energy-efficient and supports automatic meter detection, simplifying installation. Since the HW-group PWR powers the meters directly, no additional power sources are required.
Application Areas
The HW-group PWR is highly versatile and ideal for:
- Server room monitoring: Monitoring power consumption and detecting failures in data centers.
- Building management: Recording electricity, water, or heat consumption in offices or public buildings.
- Industry and production: Optimizing energy consumption in production facilities.
- Rental properties and vacation homes: Remote monitoring for accurate billing and protection against inefficient consumption.
The three versions cover different needs: HWg-PWR 3 for small, HWg-PWR 12 for medium, and HWg-PWR 25 for large installations.
Installation and Configuration
Installation is simple: The device is mounted on a DIN rail and operated via 110/230 V AC. Connection is via Ethernet, and configuration is done through a secure web interface. Alarm thresholds, reporting intervals, and data logging are individually adjustable. Automatic meter detection reduces setup effort.
Reliability and Alarms
The HW-group PWR is robust and reliable. It supports SNMP alarms, email, and SMS notifications for threshold violations or power failures. The digital inputs detect failures, e.g., due to circuit breakers, and enhance server room monitoring. Regular reports ensure seamless documentation.
Version Comparison
- HWg-PWR 3: For up to 3 meters, ideal for small environments such as offices or server rooms.
- HWg-PWR 12: Supports up to 12 meters, suitable for larger server rooms or buildings.
- HWg-PWR 25: For up to 25 meters, perfect for large data centers or industrial plants.
All models offer M-Bus interface, SensDesk Portal integration, and M2M protocols.
Cost Efficiency and Sustainability
Investment in the HW-group PWR pays off through energy cost savings and failure prevention. It converts consumption data directly, without additional software. Certified M-Bus meters enable accurate billing. The energy-efficient M-Bus technology and durable design promote sustainability.
Developer Support
The HW-group PWR supports M2M protocols (Modbus/TCP, SNMP, XML) and is compatible with over 50 SNMP and SCADA applications. The HWg-SDK provides programming examples in C++, PHP, and Java.
The HW-group PWR is the ideal solution for precise energy monitoring. With three versions – HWg-PWR 3, HWg-PWR 12, and HWg-PWR 25 – it covers all requirements. Integration into the SensDesk Portal, SNMP alarms, and robust M-Bus technology ensure reliability and flexibility. Invest in the HW-group PWR for a modern, cost-effective solution for server room monitoring and energy consumption measurement.
YouTube
- HWg-PWR 3:
For up to 3 meters - HWg-PWR 12:
For up to 12 meters - HWg-PWR 25:
For up to 25 meters
HWg-PWR 3
M-Bus Connections:
- Up to 3 M-Bus meters
- Integrated power supply for M-Bus meters
- Automatic detection of connected meters
- Supports electricity, heat, gas, and water meters
Voltage Inputs:
- 8 voltage inputs for 110V/230V
- Common protective earth
- Phase failure detection
- Undervoltage monitoring
Data Processing:
- 100 variables for all M-Bus devices
- Up to 100 values per connected meter
- Internal memory for 170,000 values
- Data logging and archiving
HWg-PWR 12
M-Bus Connections:
- Up to 12 M-Bus meters
- Integrated power supply for M-Bus meters
- Automatic detection of connected meters
- Supports electricity, heat, gas, and water meters
Voltage Inputs:
- 8 voltage inputs for 110V/230V
- Common protective earth
- Phase failure detection
- Undervoltage monitoring
Data Processing:
- 100 variables for all M-Bus devices
- Up to 100 values per connected meter
- Internal memory for 170,000 values
- Extended data logging capacity for more meters
HWg-PWR 25
M-Bus Connections:
- Up to 25 M-Bus meters
- Integrated power supply for M-Bus meters
- Automatic detection of connected meters
- Supports electricity, heat, gas, and water meters
Voltage Inputs:
- 8 voltage inputs for 110V/230V
- Common protective earth
- Phase failure detection
- Undervoltage monitoring
Data Processing:
- 100 variables for all M-Bus devices
- Up to 100 values per connected meter
- Internal memory for 170,000 values
- Maximum data logging capacity for large installations
Common Technical Specifications (all versions)
Power Supply:
- 110V/230V input voltage
- 10W power consumption
- DIN rail mounting
Network Connectivity:
- Ethernet: 100 Base Tx
- IP protocols: ARP, TCP/IP (HTTP, NTP, SMTP, Modbus/TCP)
- UDP/IP: SNMP
- M2M protocols: HTTP (XML), SNMP, SNMP Trap, Modbus/TCP, HWg-PUSH
M-Bus Standard:
- European standard EN 13757
- Certified M-Bus meters from various manufacturers
- Additional values: voltage, current, cos φ, flow, drift
- Measurement accuracy depends on the connected meter
Reporting and Alarms:
- Weekly/monthly email reports
- Consumption and price information per meter
- Email alarms for threshold exceedances
- SMS notifications
- SNMP Trap support
Web Interface:
- Integrated web server
- Graphical display of consumption and prices
- Remote access via IP
- XML data export
Software Support:
- HWg-PDMS Windows application
- Database integration
- MS Excel data export
- Export function for up to 20 values
Other devices
Available sensors
Extension units
Accessories
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
I/O Controller
IP WatchDog
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
