# Core Concepts and Terminology
This page explains how Voldeno fits together—whether you are a homeowner planning a smart home (Your Home) or an installer or integrator growing your business (For Professionals). The same building blocks apply to both perspectives.
# What is Voldeno?
Voldeno is a modular building automation system for residential and similar projects. It combines:
- DIN-rail hardware modules (I/O, relays, 1-Wire, analog inputs, HUB, and more) connected on a single field bus
- Local-first processing—automations, scenes, and controls run without requiring the internet
- Professional configuration tools (Voldeno Studio, Logic Blocks, optional Volang) and everyday control (wall switches, Voldeno Mobile)
The system is designed so there is no mandatory cloud: the home stays fully operational offline. Cloud services such as Voldeno Cloud are optional—for example for remote configuration by partners or remote access when you choose to enable it.
# Voldeno Bus and CAN-FD
Voldeno Bus is the wired network that links modules in a panel or cabinet. It is based on CAN-FD, which provides hardware-level error detection, arbitration, and isolation of faulty nodes—important for reliability compared with simpler serial buses.
Modules can communicate directly with each other over the bus where appropriate; logic is not forced through a single bottleneck. For topology, cable rules, and electrical practice, see Bus topology and Bus communication (troubleshooting).
# Modules and HUB
Modules are the physical devices you mount on 35 mm DIN rail—for example:
- HUB—gateway role: coordination, Ethernet, local storage, and remote access paths; it is not a single point of failure for the whole installation in the way a classic “one brain” controller often is
- I/O—digital inputs and relay outputs for switches, loads, and similar
- RELAY—higher-power switching
- 1-WIRE—temperature and other 1-Wire sensors at scale
- ANALOG INPUT—0–10 V and 0/4–20 mA signals
Modules are typically daisy-chained on the bus with built-in termination, without extra jumpers or resistors. Many modules can run Logic Blocks locally so automation stays distributed.
For HUB connections specifically, see HUB wiring.
# Distributed logic and resilience
A core idea—highlighted for professionals and still true for homeowners—is distributed logic:
- Logic often runs on the modules that own the inputs and outputs, not only on one central unit
- No single point of failure in the sense that one module or link failing does not necessarily stop the entire property; the system is built for fault tolerance and continued operation where possible
New automation patterns are delivered as Logic Blocks without requiring firmware updates on modules for each change—faster iteration for installers and fewer risky truck rolls.
# Logic Blocks
Logic Blocks are ready-made, reusable pieces of automation you compose in Voldeno Studio (drag and drop). They cover common scenarios; the library grows over time.
Blocks can be tested in simulation before deployment. For a concrete example, see the Relay logic block article.
# Volang and VolangVM
Volang is Voldeno’s automation language for advanced or custom behaviour—used when visual wiring of blocks is not enough. It runs on VolangVM, embedded in the ecosystem so logic can execute close to hardware.
Introductory material: The Volang language and Standard library.
# Voldeno Studio
Voldeno Studio is the desktop IDE installers use to configure devices, build and connect Logic Blocks, deploy to modules, back up and restore projects, and run simulation. It is the main professional configuration surface.
Overview: Voldeno Studio.
# Voldeno Mobile and everyday control
Voldeno Mobile is the app for daily life: scenes, notifications, energy views, and remote control when you use optional cloud connectivity.
Homeowners are not required to use the app: standard momentary (bell-type) wall switches remain first-class controls. The app adds convenience; the system keeps working if the internet drops—only remote access from outside is affected.
# Integrations and protocols
Beyond the bus, modules and the HUB can talk to other equipment using common interfaces, including HTTP, TCP, UDP, Modbus, 1-Wire, 0–10 V, and 4–20 mA—for alarms, IoT devices, industrial sensors, analog plant, and more. For a compact overview, see FAQ — integrations & connectivity.
# Privacy and “your data stays home”
From a homeowner perspective, Voldeno is built so processing stays local: no requirement to ship your habits to a vendor cloud, end-to-end encryption where remote access is used, and full offline operation. Optional cloud is exactly that—optional.
# Typical journeys
Homeowner
- Find a certified installer (contact).
- Design together—scope rooms, loads, comfort, security, energy.
- Enjoy scenes, schedules, and automations from switches and/or the app, with local execution.
Professional
- Install modules on DIN rail and wire the bus.
- Configure in Studio—Logic Blocks, optional Volang, simulation, then deploy.
- Hand over to the client with Mobile and switches; use optional Voldeno Cloud for remote support and configuration.
# Where to go next
| Topic | Article |
|---|---|
| Deeper architecture for installers | System overview |
| Studio workflow | Voldeno Studio |
| Bus wiring | Bus topology, Power supply |
| Logic Blocks | Logic blocks (example) |
| Volang | Volang language |
| Common questions | FAQ |
If you are new to the product line, reading Your Home and For Professionals alongside this page will align marketing promises with technical terms used throughout the documentation.