Building automation and BMS – programming, integration and commissioning
We program and commission control and monitoring systems for buildings and infrastructure: ventilation, room climate control, lighting, energy metering and technical safety functions – with experience from one of Sweden’s largest museums and a Stockholm ferry terminal.
- Control & Regulation Technology for HVAC Systems
- Certified in Siemens TIA Portal, Mitsubishi GX Works and Beijer X2/CODESYS
- OT cybersecurity training (IEC 62443)
- 12+ years of experience · Founded 2019, Stockholm
- Listed in Inductive Automation's integrator directory
What does Robsonus do in building automation?
Robsonus AB is a Stockholm-based automation consultancy that programs, integrates and commissions Building Management Systems (BMS) – based on the control schematics (in Swedish: driftkort) and functional descriptions. We work with PLC-based HVAC control (including Mitsubishi and Siemens), room climate control, DALI lighting control and energy metering via M-Bus and Modbus – and connect it all to HMI panels, supervisory SCADA systems and web-based dashboards. We work directly for property owners and as a subcontractor to installation contractors and system integrators.
Common situations we help with
- A new build or refurbishment needs its control systems programmed to the control schematics (driftkort) and commissioned on schedule
- An installer or system integrator needs extra PLC, HMI and SCADA programming capacity
- Ventilation, heating and lighting run on fixed schedules regardless of actual occupancy
- Energy meters are installed, but the readings never reach a system where anyone sees them
- Control systems from different vendors need to talk to each other
- The original supplier is gone and the program code is undocumented
- Tenants, insurers or NIS2 are imposing new security requirements on the building’s control systems
Services
What we deliver
From control schematics (driftkort) and functional description to a commissioned, documented installation.
- Ventilation, heating and cooling (HVAC) control
- Room control of temperature, humidity and CO₂
- Lighting control via DALI
- Energy metering via M-Bus and Modbus
- Calendar-based operating schedules combined with PID control for energy optimisation
- Integration with technical safety functions and visitor counting
- Supervisory SCADA system for the building in Ignition by Inductive Automation® or Siemens WinCC – with alarm management, trending and historian
- Integration of substations and PLCs from different vendors into one supervisory system via Modbus and OPC UA
- HMI panels (Beijer, Mitsubishi, Siemens) for local operation in the substations
- Migration of legacy control systems and SCADA – e.g. Siemens S5/Step 7 to TIA Portal or Citect to Ignition – with operational continuity during the transition
- BMS dashboards, web-based visualisation and secure remote access for operations and facility management
- Commissioning, functional testing and documentation
Read more about our SCADA services → Read more about PLC and HMI programming →
Process
How we work
- 1
Technical call
(30 min, free)We walk through your facility, systems and goals.
Book directly - 2
Assessment and recommendation
Clear scope, risks and a proposal for delivery – at a fixed price or on a time-and-materials basis.
- 3
Delivery
Programming, testing and phased commissioning designed to minimise production downtime.
- 4
Handover and support
Documentation, knowledge transfer to your team and support after commissioning.
Technologies
Systems and technologies
We are vendor-independent and work with the equipment already in the building.
PLCs and distributed I/O
Mitsubishi PLC (GX Works), Siemens S7/TIA Portal, CODESYS and WAGO – from a single substation to installations with a dozen PLCs and distributed I/O.
Field devices and control
Experience with controllers and components from Regin, Schneider, Fidelix and SAIA, Vacon variable-frequency drives, and lighting control with WAGO and DALI.
Communication
Modbus RTU and Modbus TCP, M-Bus for energy metering, and TCP/IP and OPC UA towards supervisory systems.
Visualisation and supervisory systems
HMI panels from Beijer, Mitsubishi and Siemens (TIA Portal/WinCC), and SCADA in Ignition and Siemens WinCC – with alarms, trends, history and web-based BMS dashboards.
Connected buildings need OT security
Once control systems are connected for remote monitoring, they become part of the attack surface. We separate the building network from the office network, restrict communication paths and secure remote access in line with IEC 62443 – from the start, not as an afterthought. With NIS2, more organisations need to show how their building control systems are protected too.
Book a free technical call (30 min)Experience
Reference projects
Buildings with demanding requirements for climate, safety and operation. These projects were delivered before Robsonus was founded – Robert Wszolek was responsible for programming and commissioning the control systems as an automation engineer at a system integrator. Since then, Robsonus has been called in for modifications, extensions and new functions at both sites while in operation.
Museum – one of Sweden’s largest and most important
- 13 climate zones with control of temperature, humidity and CO₂
- 12 PLCs (Mitsubishi) programmed and commissioned
- Energy metering via M-Bus and Modbus
- Integration with technical safety functions and visitor flows – the permitted number of visitors per zone was calculated from factors such as outdoor temperature and solar radiation, so the climate stayed within each exhibition’s requirements
Ferry terminal and port infrastructure
- Ventilation control and room climate control for the entire terminal
- Lighting control (WAGO/DALI) and the port’s technical infrastructure
- Distributed I/O system controlled via Mitsubishi PLC
- Energy metering via M-Bus and Modbus
- Energy optimisation with calendar-based scheduling and PID control
Certifications
Certified where it counts
Ignition 8.3 Credentialed
Inductive Automation
OT Cybersecurity Training - IEC 62443
Training Center for Automation Systems INTEX, Gliwice
Siemens S7-1200/1500 SCL Advanced in TIA Portal
Training Center for Automation Systems INTEX, Gliwice
Simatic WinCC SCADA in TIA Portal
Siemens AB, Stockholm
CODESYS with Beijer X2 Panel / Soft PLC
Beijer Electronics, Upplands Väsby
Mitsubishi GX Works 2 Advanced
Mitsubishi Electric, Stockholm
Control & Regulation Technology for HVAC Systems
Teknologisk Institut AB
FAQ
Common technical questions
Do you program from our control schematics (driftkort)?
Yes. We program and commission the controls based on the control schematics (driftkort) and functional descriptions drawn up by the consulting engineer.
Do you work as a subcontractor to installers and system integrators?
Yes. We work both directly for property owners and as a subcontractor to installation contractors and system integrators – with PLC and HMI programming, integration and commissioning.
Which systems and protocols do you work with in buildings?
We are vendor-independent. We program Mitsubishi PLCs and Siemens S7 in TIA Portal, have commissioned installations with distributed I/O, worked with equipment from Regin, Schneider, Fidelix, SAIA, Vacon and WAGO, DALI lighting control, and communication via Modbus RTU/TCP, M-Bus, TCP/IP and OPC UA.
How does building automation reduce energy use?
By running ventilation, heating and lighting according to actual demand: per-zone room control based on temperature and CO₂, time schedules that follow the building’s operating hours, PID control, and energy metering via M-Bus and Modbus that makes consumption visible.
Can a building’s control system be monitored remotely in a secure way?
Yes. We separate the building network from the office network, restrict communication paths and secure remote access in line with IEC 62443.
Contact
Let's discuss your project
Whether you have a detailed specification or just a first idea – we're happy to have a technical conversation and help you find the right path forward.
Prefer direct contact?
Based in Stockholm. Assignments across Sweden, on-site and remote – abroad by arrangement. Professional liability insurance in place for all assignments.