HW-group PWR – M-Bus gateway for energy and consumption meters
HW-group PWR – M-Bus Gateway
The HW-group PWR is a powerful M-Bus gateway for integrating energy meters into IT, industrial, and building management systems. It enables real-time acquisition of electricity, gas, and heat consumption and serves as an interface between M-Bus devices and monitoring platforms. Ideal for data centers, industrial sites, and large infrastructures, it provides precise energy management and cost transparency.
Supporting M-Bus meters (EN 13757), the HWg-PWR transfers measured data to SensDesk or via open protocols (SNMP, Modbus/TCP, MQTT, XML) into SCADA and IoT environments. This ensures transparent consumption monitoring and efficient documentation.
Versions
- HWg-PWR 3: Up to 3 M-Bus meters – ideal for offices or small server rooms
- HWg-PWR 12: Up to 12 meters – for mid-size facilities and data centers
- HWg-PWR 25: Up to 25 meters – suited for large industry/critical infrastructures
Key Features
- M-Bus interface (EN 13757) – multi-vendor meter integration
- Real-time data – up to 100 datapoints per meter
- Datalogger – 170,000 values; analyzed with HWg-PDMS & Excel export
- 8 digital inputs (DI) for dry contacts (doors, alarms, sensors)
- Alarming via email, SNMP traps, SMS/voice through gateways
- Protocols: SNMPv3, HTTPS, Modbus/TCP, XML, MQTT
- Power: 110/230 V AC with direct M-Bus supply
Typical Applications
- Data centers & server rooms – detailed load & power monitoring
- Industry – supervision of production plants and networks
- Building management – integration of utility meters for HVAC supervision
- Rental & public buildings – transparent multi-tenant energy billing
- Smart buildings – sustainable energy management strategies
Integration
SensDesk cloud and on-premise platforms allow centralized visualization, alarm management, and PDF reporting. With SNMPv3, HTTPS, Modbus, and XML, the HWg-PWR integrates into more than 50 professional SCADA and network management solutions for enterprise-grade deployment.
Alarm & Control Functions
- Alarms via email, SNMP, SMS, or voice gateways
- Use digital inputs for external sensor/status alarms
- Box-to-box control via virtual outputs
- Documentation via PDF reports, audit trails, compliance logs
Conclusion
The HW-group PWR M-Bus Gateway is a robust, scalable platform for integrating energy consumption meters into IT, SCADA, and IoT systems. With up to 25 meters supported, rich alarm options, secure communication, and detailed logging, it sets a new benchmark for energy monitoring in critical infrastructure, industrial plants, and large facilities.
Summary
Can the HWg-PWR detect water leaks?
Yes, in combination with M-Bus water meters or external water leak detectors, the system can detect even the smallest amounts of liquid and immediately trigger an alarm.
What differentiates the HWg-PWR 3, 12, and 25 versions?
The versions differ in the number of connectable meters: 3, 12, or 25. All models equally support water leakage protection and IoT monitoring.
How are alarms triggered?
Alarms are sent via e-mail, SNMP trap, or SMS (through an SMS gateway). SensDesk can additionally provide device failure detection and reporting.
HW-group PWR: M-Bus Gateway
