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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.


HD67421-E7R - CANopen to Modbus RTU Master (RS485) converter, IP67, SuperSeal 1.5 connectors, metal housing
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67421-E7R
Industrial CANopen to Modbus RTU (RS485) master converter, SuperSeal 1.5 Connectors, varnished, galvanic isolation 4000V, Connectors SuperSeal 1.5, IP67Converter has a robust metal housing, resistant to vibration and shock, ensuring reliability even in harsh env..
1,625.03 zł 2,166.70 zł
HD67422-E7R
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67422-E7R
Industrial CANopen to Modbus RTU (RS485) slave converter, SuperSeal 1.5 Connectors, varnished, galvanic isolation 4000V, Connectors SuperSeal 1.5, IP67Converter has metal housing, it's resistant to mechanical stress (such as vibration and shock) and has triple galvanic ..
1,625.03 zł 2,166.70 zł
HD67615-A1 HD67615-A1
Shipping 24h Test for Free! 2 year warranty -25 %
Brand: ADF Web Model: HD67615-A1
Industrial PROFINET to NMEA 0183 converter, housing type A (slim), DIN rail mount. HD67615 allows you to connect some NMEA0183 devices (for example fluid level sensors, management of heat and cold, lights, etc) with a PROFINET net (for example a SIEMENS PLC, etc) in ord..
2,710.73 zł 3,614.30 zł
HD67931-B2-G43-80
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67931-B2-G43-80
Industrial M-Bus Master to MQTT converter up to 80 Slaves, housing type B (wide), DIN rail mounting. The HD67931-B2-G43-80 model is an industrial converter equipped with a DIN rail mounting function. With an operating temperature range of -40°C to +70°C and IP20 protect..
1,625.03 zł 2,166.70 zł
HD67B19-G43-B2 – Industrial OPC UA Client to MQTT Converter with LAN, LTE SIM and eSIM
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67B19-G43-B2
HD67B19-G43-B2 Converter – advanced OPC UA Client to MQTT gateway with dual Ethernet and LTE connectivity.The HD67B19-G43-B2 is an industrial-grade OPC UA Client to MQTT converter designed to seamlessly integrate automation systems, OPC UA servers and IoT infra..
1,625.03 zł 2,166.70 zł
HD67B42-G43-B2 – Industrial OPC UA Server to MQTT Converter with LAN and LTE SIM
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67B42-G43-B2
HD67B42-G43-B2 Converter – Industrial OPC UA Server to MQTT gateway with dual Ethernet and LTE connectivity.The HD67B42-G43-B2 is a high-performance OPC UA Server to MQTT converter designed for modern industrial, automation and IIoT applications. Built in a com..
1,625.03 zł 2,166.70 zł
HD67C03-5-G43-E-B2 – Industrial RS485 to MQTT Broker Converter with LAN, LTE SIM and eSIM
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C03-5-G43-E-B2
HD67C03-5-G43-E-B2 – RS485 to MQTT Broker Converter with LAN, LTE SIM, eSIM and Housing Type B.The HD67C03-5-G43-E-B2 is an advanced industrial-grade communication converter designed to integrate RS485 serial devices into modern IoT and IIoT platforms using t..
1,625.03 zł 2,166.70 zł
HD67C03-5-G43-E-VPN-B2 – Industrial RS485 to MQTT Broker Converter with LAN, LTE SIM, eSIM and VPN
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C03-5-G43-E-VPN-B2
HD67C03-5-G43-E-VPN-B2 – RS485 to MQTT Broker Converter with LAN, LTE SIM, eSIM, VPN and Housing Type B.The HD67C03-5-G43-E-VPN-B2 is a highly advanced industrial communication converter designed to integrate RS485 serial devices into modern IoT and IIoT ecos..
1,625.03 zł 2,166.70 zł
HD67C04-2-G43-E-B2 Modbus Master and MQTT Broker Converter with LAN, LTE SIM and eSIM
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C04-2-G43-E-B2
HD67C04-2-G43-E-B2 Modbus Master and MQTT Broker Converter with LAN, LTE SIM and eSIM.The HD67C04-2-G43-E-B2 is a high-performance industrial protocol converter designed for applications that require reliable integration between Modbus Master devices and modern..
1,625.03 zł 2,166.70 zł
HD67C04-2-G43-E-VPN-B2 Modbus Master and MQTT Broker Converter with LAN, LTE SIM, eSIM and VPN
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C04-2-G43-E-VPN-B2
HD67C04-2-G43-E-VPN-B2 Modbus Master and MQTT Broker Converter with LAN, LTE SIM, eSIM and VPN.The HD67C04-2-G43-E-VPN-B2 is a high-performance industrial converter that integrates Modbus Master communication with an on-board MQTT Broker, enhanced with a secu..
1,625.03 zł 2,166.70 zł
HD67C04-5-G43-E-B2 Modbus Master and MQTT Broker with LAN, LTE SIM and eSIM
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C04-5-G43-E-B2
HD67C04-5-G43-E-B2 – Industrial Modbus Master and MQTT Broker Converter with LAN, LTE SIM and eSIM.The HD67C04-5-G43-E-B2 is a powerful industrial protocol converter that combines Modbus RTU communication with modern MQTT technology, enhanced with both LTE S..
1,625.03 zł 2,166.70 zł
HD67C04-5-G43-E-VPN-B2 Modbus Master and MQTT Broker with LAN, LTE, eSIM and VPN – Industrial Communication Converter
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67C04-5-G43-E-VPN-B2
HD67C04-5-G43-E-VPN-B2 – Industrial Modbus Master and MQTT Broker with LAN, LTE, eSIM and VPN.The HD67C04-5-G43-E-VPN-B2 is an advanced industrial communication converter designed to connect Modbus RTU field networks with modern MQTT-based cloud, SCADA and Io..
1,625.03 zł 2,166.70 zł
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