KNX energy metering, load shedding and solar with Can’nX
Can’nX measures and manages the energy of a KNX building with four applications. Emergy’nX shows instantaneous flows (solar, battery, grid, building) and controls equipment: load shedding, solar surplus, off-peak hours or Tempo days. Chart’nX presents the history of KNX or Modbus meters in dashboards and exports the measurements. Boss’nX brings these dashboards into supervision and hypervision, and Link’nX connects an Atmoce photovoltaic and battery gateway to the bus.
Solutions for your need
Section titled “Solutions for your need”| Need | Application | Guide |
|---|---|---|
| Read the flows, self-consumption and the consumption breakdown | Emergy’nX, Dashboard | Read flows and consumption |
| Force a device on or off, then return to automatic | Emergy’nX, Dashboard → Equip. | Choose Auto, OFF or ON |
| Declare a device and its KNX measurements and commands | Emergy’nX, Equipment | Configure KNX measurements and commands |
| Shed loads or use the solar surplus according to power thresholds | Emergy’nX, Energy Control | Load shedding and solar surplus |
| Control devices during off-peak, peak or red peak hours | Emergy’nX, Energy Control | Tariff rules |
| Describe the grid connection, tariff, solar production and battery | Emergy’nX, Building Config | Grid and tariffs, production and battery |
| Configure the meters of an energy dashboard | Chart’nX, Configure | Main meters |
| Declare a Modbus gateway and registers, test a reading | Chart’nX, Modbus catalog | Modbus configuration, test read |
| Choose the chart period and export measurements to CSV | Chart’nX, viewing | Period and precision, export |
| Show the energy breakdown in a supervision or a hypervision | Boss’nX, Dashboard or Hypervision dashboard | Energy widget, hypervision energy |
| Plot and export to CSV the measurements of tracked datapoints | Boss’nX, Analytics, Trends tab | View measurements |
| Connect an Atmoce PV and battery gateway to KNX | Link’nX | Atmoce commands and measurements |
Chart’nX opens from Emergy’nX (access) or from Analyses in Boss’nX (access); dashboards are configured through the Emergy’nX entry point. After saving, handle KNX address monitoring if it is offered.
Good to know
Section titled “Good to know”- The power values on the Emergy’nX dashboard are instantaneous, in W or kW. For energy in kWh over a period, use Chart’nX.
- Load shedding and optimization thresholds are in watts, delays in minutes. The gap between the rising and falling thresholds forms a hysteresis.
- Grid measurement: with the Meter type 1 signed reading, active power is positive for consumption and negative for export; 2 readings (one per direction) separate production and consumption. Each measurement is read over KNX or Modbus.
- Solar production and the battery are read through the bus, over KNX or Modbus, or directly from a Huawei inverter over Modbus TCP.
- In Chart’nX, Index suits a cumulative meter and Not indexed a period value; the Custom Factor multiplies the received value.
- A missing value or a missing site does not mean zero consumption.
See also Atmoce, EV charging, Water metering and Modbus.
All Energy and metering guides
Section titled “All Energy and metering guides”Access and getting started
Section titled “Access and getting started”- Open a Chart’nX dashboard from the Boss’nX Analytics page
- Open or create a Chart’nX dashboard from Emergy’nX
- Find your way around Emergy’nX: menus, language, TV mode and demo
- Install the Emergy’nX app on a computer, iPhone or iPad
Configuration and use
Section titled “Configuration and use”- Chart historical measurements in Boss’nX analytics
- Export Boss’nX analytics measurements to CSV
- Create and reuse datapoint favorites in Boss’nX analytics
- Period, aggregation and chart reading in Boss’nX analytics
- Chart’nX battery meter: energy and state of charge over KNX or Modbus
- Time zone, language, unit and Y scale in Chart’nX
- Export data from a Chart’nX dashboard to a CSV file
- Chart’nX CSV export: choose the format and read the file
- Chart’nX export labels: French and English equivalents
- Chart’nX energy dashboard: name, power in kVA and phases
- Group submeters and set the display order in Chart’nX
- Overlay temperature or presence on a Chart’nX meter chart
- Configure the L1, L2 and L3 phases of a three-phase Chart’nX meter
- Configure the KNX or Modbus main meters of a Chart’nX dashboard
- Total energy in Chart’nX: add and subtract meters
- Set the period and precision of a Chart’nX dashboard
- Read per-phase current and phase imbalance in Chart’nX
- Read the charts of a Chart’nX dashboard and change their presentation
- Save a Chart’nX dashboard: preview, save and close the generator
- Add, duplicate or delete a Chart’nX energy submeter
- Emergy’nX general meter: calculated or measured total consumption
- Emergy’nX power network: tariffs, off-peak hours, Tempo and metering
- Emergy’nX solar production and battery: KNX, Modbus or Huawei
- Emergy’nX: configure Presence/Absence and Summer/Winter KNX feedback
- Emergy’nX: enter the site’s GPS coordinates for weather data
- Emergy’nX: force equipment ON or OFF, then return to Auto
- Send a custom value to Emergy’nX equipment with the Custom button
- Emergy’nX dashboard: read solar, battery and grid energy flows
- Load shedding and solar surplus: configure thresholds in Emergy’nX
- Create, edit or duplicate equipment in Emergy’nX
- Find or delete equipment in Emergy’nX
- Set up Emergy’nX equipment characteristics for each equipment type
- EV charger (IRVE) in Emergy’nX: model, connection and optimization
- Monitor EV charging stations (IRVE) in Emergy’nX
- Emergy’nX tariff-based control: off-peak, peak and red peak hours
Dashboards and hypervision
Section titled “Dashboards and hypervision”- Boss’nX energy breakdown: read a supervision’s energy widget
- Add a Boss’nX energy widget and link it to a Chart’nX dashboard
- Multi-site energy consumption in the Boss’nX hypervision
- Set up the Boss’nX hypervision energy widget with Chart’nX
Devices and integrations
Section titled “Devices and integrations”Protocols, imports and monitoring
Section titled “Protocols, imports and monitoring”- Archive, restore or delete a Modbus configuration in Chart’nX
- Chart’nX Modbus catalog: find a meter configuration
- Declare, edit or duplicate a Modbus configuration in Chart’nX
- Create, edit or disable a Modbus gateway in Chart’nX
- Import Modbus configurations as Chart’nX submeters
- Test a Modbus reading in Chart’nX: result and unavailable test
- Assign KNX addresses to monitoring gateways in Chart’nX
- Emergy’nX and KNX: map measurements and commands to group addresses
- Atmoce and KNX: control the battery and read PV measurements
Questions and troubleshooting
Section titled “Questions and troubleshooting”- Boss’nX energy breakdown: troubleshooting and frequently asked questions
- Boss’nX hypervision energy: troubleshooting and FAQ
- Chart’nX CSV export: missing button, missing panel or failure
- Chart’nX dashboards: frequently asked questions about viewing
- Chart’nX energy meter: troubleshooting and frequently asked questions
- Modbus in Chart’nX: missing measurements and frequently asked questions
- Troubleshoot KNX address monitoring in Chart’nX
- Emergy’nX: troubleshooting and frequently asked questions