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Building Management System BMS - building automation

Building Management System BMS – Comprehensive Solutions for Automation and Integration

A Building Management System (BMS) is a centralized platform that enables intelligent monitoring and control of building infrastructure, such as HVAC, lighting, access, and energy. To ensure smooth data exchange and automation across different technologies, a BMS requires specialized converters, communication modules, and industrial networking equipment. At CONSTEEL, we offer a full range of industrial-grade solutions to support efficient, reliable, and scalable BMS deployments.

M-Bus Converters – Integrating Energy and Water Meters

M-Bus to Modbus converters enable BMS platforms to retrieve real-time readings from thermal, electric, gas, and water meters. They are essential for accurate energy monitoring, cost allocation, and integration with building analytics systems.

DALI Converters – Smart Lighting Management

DALI converters support the integration of lighting systems into the BMS architecture. They offer advanced control over individual luminaires, groups, and scenes. These devices help reduce energy costs and enhance occupant comfort through automation.

BACnet, Modbus, KNX Converters – Multi-Protocol Communication

Our protocol converters bridge communication between BACnet IP, Modbus RTU/TCP, and KNX systems. They are key components for linking HVAC units, lighting controls, fire systems, and access control into a unified BMS dashboard.

AC Communication Modules – BMS Control for Air Conditioning

Specialized communication modules allow direct integration of split units and VRF/VRV air conditioners (Daikin, LG, Mitsubishi, etc.) into BMS networks. These devices enable centralized temperature, mode, and schedule control across all zones.

I/O Modules – Digital and Analog Signal Handling

Input/output modules expand the control capabilities of your BMS. They collect signals from sensors and switches, and control actuators, fans, relays, or dampers. Ideal for HVAC, alarm, shading, and access control systems.

Industrial Switches – Reliable Ethernet Networks

Our industrial-grade Ethernet switches are designed for high-performance BMS networks. They feature wide temperature ranges, redundant power supply, VLAN, QoS, and ring redundancy support – ensuring network stability in harsh environments.

Serial Device Servers – Integration of RS232/RS485 Devices

Serial servers allow legacy devices with RS232 or RS485 interfaces to communicate over IP-based BMS platforms. Perfect for extending the life and connectivity of meters, controllers, and older field devices.

Fiber Media Converters – Long-Distance Communication

Fiber media converters provide reliable data transmission over long distances and ensure electromagnetic interference resistance. Crucial in large buildings, campuses, and industrial areas where wired Ethernet cannot reach.

Frequently Asked Questions (FAQ)

What is a Building Management System?
A BMS is an integrated platform that enables the automated control and monitoring of building systems, such as HVAC, lighting, and power distribution, improving comfort, energy efficiency, and operational safety.

Why are protocol converters necessary in BMS?
They ensure compatibility between devices using different communication standards. This enables centralized control and expands integration across building technologies from various manufacturers.

Which devices can be integrated into a BMS?
HVAC units, lighting systems, power meters, access control, fire alarms, and other building subsystems – using converters, I/O modules, and network equipment.

Is BMS suitable for industrial environments?
Yes – with our robust industrial solutions such as Ethernet switches and serial servers, BMS platforms can operate reliably even in harsh industrial conditions.

Explore our full product offering to build a powerful and future-proof Building Management System. Our team is ready to assist you with technical support and custom-tailored solutions.


IN775FGL00SO000 – Fujitsu to KNX, Modbus & BACnet Gateway
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: IN775FGL00SO000
IN775FGL00SO000 – Fujitsu to KNX, Modbus & BACnet Gateway for Home Automation.  The IN775FGL00SO000 gateway is a professional-grade interface designed to provide full bi-directional communication between Fujitsu VRF systems and popular building automation protocols such as KNX, Modbus (RTU/TCP) and BACnet (IP/MS/TP). Supporting integration of up to 64 indoor units and 12 outdoor units, this versatile device is ideal for home automatio..
8,366.00 zł
INKNXACA016I000 - Bosch Commercial and VRF Interface to KNX, 16 units
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INKNXACA016I000
INKNXACA016I000 – Bosch Commercial and VRF to KNX Interface for Up to 16 AC Units.  The INKNXACA016I000 gateway from Intesis enables seamless bi-directional integration between Bosch Commercial & VRF air conditioning systems and KNX automation networks. It supports communication with up to 16 indoor units, offering centralised control, energy-saving functions, and real-time monitoring via KNX. This compact interface is direct..
8,403.60 zł
INKNXLGE016O000 – LG VRF to KNX Interface, 16 Units
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INKNXLGE016O000
INKNXLGE016O000 – LG VRF to KNX Interface for Up to 16 Indoor Units.  The INKNXLGE016O000 gateway from Intesis has been specifically developed to enable fully bidirectional integration between LG VRF air conditioning systems and KNX automation installations. Designed for professional building automation environments, this interface provides a seamless solution for controlling and monitoring up to 16 indoor LG AC units via a single devic..
8,601.00 zł
LG-AC-KNX LG-AC-KNX
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: LG-AC-KNX
LG VRF systems to KNX Gateway. The LG-AC-KNX IntesisBox Gateway has been specially designed to allow bidirectional control and monitoring of LG VRF solutions from a KNX installation.Specification:Ports:KNX (EIB) port: 1x KNX TP1 (EIB) port opto-isolated, Plug-in terminal block (2 poles)RS485 (LG) port: 1x RS485 connector, Plug-in terminal block (2 poles)Console port: RS232. DB9 female connector (DCE), also allows configuration and upgrades firmwa..
8,601.00 zł
INMBSACA032I000 - Bosch Commercial VRF to Modbus RTU interface, 32 units, DIP switch, window contact function
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INMBSACA032I000
INMBSACA032I000 – Bosch Commercial & VRF to Modbus RTU Interface, 32 units.  The INMBSACA032I000 Modbus interface by Intesis enables fully bidirectional communication between Bosch Commercial and VRF air conditioning systems and Modbus RTU (RS-485) networks. Supporting up to 32 indoor units in a single interface, this solution is ideal for integrating Bosch HVAC systems into centralized building automation infrastructures such as BM..
8,671.50 zł
IN776MHI00SO000 – Interface for Mitsubishi Heavy Industries VRF (16 indoor, 12 outdoor units)
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: IN776MHI00SO000
IN776MHI00SO000 – Interface for Mitsubishi Heavy Industries VRF (16 indoor, 12 outdoor units).  The IN776MHI00SO000 interface is a professional gateway that enables full bidirectional integration of Mitsubishi Heavy Industries VRF systems with home and building automation environments via KNX, Modbus, BACnet, and IP-based systems. Designed specifically for applications requiring advanced control and monitoring, this model supports up to 1..
8,695.00 zł
INMBSKNX1K20000 - Modbus RTU and TCP Gateway to KNX, 1200 points, Intesis MAPS
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INMBSKNX1K20000
INMBSKNX1K20000 – Industrial KNX to Modbus RTU/TCP Gateway with Support for 1200 Data Points The INMBSKNX1K20000 gateway from Intesis enables reliable and seamless bidirectional integration between KNX TP devices and Modbus RTU or TCP-based systems. Whether you are using a BMS, SCADA, PLC, or any Modbus-compatible controller, this device allows you to read and write to KNX communication objects as if they were native Modbus registers, and ..
8,770.20 zł
INKNXTOS016O000 - Toshiba TCC-Link interface to KNX, up to 16 indoor units
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INKNXTOS016O000
INKNXTOS016O000 – Toshiba TCC-Link to KNX Gateway for 16 Indoor VRF Units.  The INKNXTOS016O000 gateway enables seamless two-way communication between Toshiba VRF air conditioning systems (via the TCC-Link protocol) and KNX building automation networks. Designed to control and monitor up to 16 indoor units, this device ensures that all HVAC functions are available directly from the KNX bus – allowing full integration into home, commerci..
8,967.60 zł
TO-AC-KNX (INKNXTOS016O000) TO-AC-KNX (INKNXTOS016O000)
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: TO-AC-KNX
Toshiba AC TCC-Link to KNX Gateway. The TO-AC-KNX (INKNXTOS016O000) IntesisBox Gateway has been specially designed to allow bidirectional control and monitoring of Toshiba VRF systems (through TCC-Link bus) from a KNX installation.The TO-AC-KNX (INKNXTOS016O000) gateway is directly connected to the outdoor units communication bus and enables the control of all the indoor units connected to the system. The connection between the two networks is qu..
8,967.60 zł
PA-AC-KNX PA-AC-KNX
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: PA-AC-KNX
Panasonic VRF systems (CZ-CFUNC2) to KNX Gateway. The PA-AC-KNX IntesisBox Gateway has been specially designed to allow bidirectional control and monitoring of Panasonic VRF systems through the CZ-CFUNC2 addaptor from a KNX installation.Specification:Ports:KNX port: 1 x KNX TP1 (EIB) opto-isolated, 2 poles plug-in screw terminal blockCZ-CFUNC2 port: 1 x EIA485, 2 poles plug-in screw terminal blockEthernet port: 1 x Ethernet 10Base-T (RJ45)Console..
9,001.11 zł
INBACMBM1K20000 – Modbus RTU or TCP to BACnet Gateway 1200 Points
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INBACMBM1K20000
INBACMBM1K20000 – Modbus RTU or TCP to BACnet Gateway 1200 Points.  The INBACMBM1K20000 gateway by Intesis (previously IBOX-BAC-MBM) is a powerful and compact solution that enables seamless integration of Modbus RTU and Modbus TCP slave devices with BACnet-based building automation systems. Supporting both BACnet/IP and BACnet MS/TP, the device maps up to 1200 data points, ensuring high-capacity interoperability for large-scale automati..
9,150.90 zł
INMBSBAC1K20000 - BACnet IP/MSTP Gateway to Modbus, 1200 points, Intesis MAPS
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INMBSBAC1K20000
Integration of BACnet IP or BACnet MSTP devices into a Modbus TCP or Modbus RTU installation- 1200 points. Integrate any BACnet MS/TP or BACnet IP server device, with a Modbus BMS or any Modbus TCP or Modbus RTU controller. The aim of this integration is to make accessible BACnet objects data and resources from a Modbus based control system or device, as if it was a part of the own Modbus system and vice-versa.This bidirectional INMBSBAC1K20..
9,150.90 zł
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