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Buildings that coordinate themselves.

S4 integrates building automation and its management system (BMS): lighting, HVAC, access control, security and energy coordinated from a single console, with open protocols, to operate with less manual intervention and with data to decide.

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Content reviewed in November 2026

Temperatureand CO2 Presence Consumption Controller Gateway BMS Lighting HVAC Access andfire
  1. C1Field
  2. C2Control
  3. C3Platform
  4. C4Integration
Sensors, controllers and gateways feeding a BMS that coordinates the building.

Who it is for

Facility manager

A view of the whole building, to act before the complaint.

IT director

A segmented, secure and documented BMS on the network.

Contractor or developer

A building integrated from handover.

Many systems, many screens, no common logic.

Each system arrived with its own contractor and its own console. HVAC does not know the floor is empty, lighting does not know the schedule and nobody sees the whole building.

You need it if you recognize any of these signs:

  • Each system is operated from a different console.
  • HVAC and lighting run the same whether the building is full or empty.
  • Technical alarms are found out when a user complains.
  • There is no history to plan maintenance.

How the system is built.

We integrate through open protocols: BACnet (ISO 16484-5) and Modbus for HVAC and energy, KNX and DALI for lighting, and gateways or APIs for security. The building is not tied to one manufacturer and each system can be renewed separately.

C1

Field

  • Temperature, CO2, occupancy and consumption sensors
  • Valve, damper and circuit actuators
C2

Control

  • Automation controllers
  • Protocol gateways
C3

Platform

  • BMS with a unified console
  • Rules, schedules and scenes
  • History and trends
C4

Integration

  • Lighting, HVAC and energy
  • Access control and fire detection
  • Technical alarms and maintenance
Reference layer diagram. Each project specifies it in its technical report.

What is included and what is not.

Included in the service

  • Inventory of existing systems and their protocols
  • Integration architecture and list of points to supervise
  • Supply of controllers, sensors and gateways
  • Programming of rules, schedules and scenes
  • Unified console, alarms and history
  • Point-by-point testing and training

Out of scope

  • Mechanical HVAC equipment, supplied by the mechanical contractor
  • Licenses for third-party proprietary systems with no open protocol
  • Major electrical works

Anything out of scope is coordinated with the right party or quoted separately, and is always stated in writing before we start.

How we do it, step by step.

  1. Assessment

    Inventory of systems, controllers and protocols; operating problems gathered with your maintenance team.

    DeliverableInventory of systems and possible integrations

  2. Design

    Integration architecture, point list, operating rules and phased plan.

    DeliverableTechnical report and point list

  3. Integration

    Installation of controllers and gateways, programming and integration with each system.

    DeliverableIntegrated BMS

  4. Commissioning

    Point-by-point testing, verification of every rule and training for the maintenance team.

    DeliverablePoint-by-point test report

  5. Operation and improvement

    Rule tuning with real data, support and evolution.

    DeliverableOperation reports

Work sequence: each step closes with a written deliverable.
See the full methodology

Reference regulations and standards.

These are the usual references for this type of system. The technical report of each project identifies which ones apply, depending on the use, size and location of the installation.

Regulatory reference, indicative

BACnet (ISO 16484-5)
Open communication protocol for building automation and control.
Modbus
Open protocol widely used in meters and HVAC equipment.
KNX (ISO/IEC 14543-3)
Open standard for home and building automation.
LEED and EDGE
Automation contributes to the efficiency and metering requirements of these certifications.
RETIE
Colombian technical regulation for electrical installations: governs the service connections and circuits that power the equipment.

What stays in your hands.

  1. Systems inventory

    Equipment, protocols and condition.

  2. Point list

    Every variable supervised or controlled.

  3. Technical report

    Architecture and operating rules.

  4. Point-by-point test report

    Every signal and every rule verified.

How we apply it in your sector.

Works better alongside these services.

Lighting controlThe lighting layer of the building.Energy efficiencyConsumption data to tune rules.Access controlReal occupancy to drive HVAC and lighting.

What people ask us most.

What is a BMS?

A building management system: a platform that supervises and controls HVAC, lighting, energy and other systems from a single console, with alarms and history.

Is it only for new buildings?

No. It is also applied in phases in existing buildings, starting with the highest-impact systems.

Which systems can be integrated?

It depends on the existing installation and on the protocols each device offers; the assessment determines it.

What if my equipment is from different brands?

That is the usual case. With open protocols and gateways they integrate; if a device has no open protocol, the assessment lays out the alternatives.

Is it safe to connect the building to the network?

Yes, if the building network is segmented from the corporate one and remote access is controlled. We design it together with your IT team.

Let's talk about your project.

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Or call us: +57 314 460 0683 · +34 848 88 04 04

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