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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.


HD67876-A1-2B HD67876-A1-2B
Shipping 24h Test for Free! 2 year warranty Quantity discount
Brand: ADF Web Model: HD67876-A1-2B
Industrial IO-Link to PROFINET slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: B The HD67876-A1 is a IO-Link Master / PROFINET Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a PROFINET Master in order to exchange informations between the nets. Features: Up to 1440 bytes in reading and 1440 bytes in writing Two-directional information between PROFINET and IO-L..
1 029,30 zł
HD67930-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67930-B2
Industrial Ethernet to MQTT converter, housing type B (wide), DIN rail mount. HD67930-B2 allows to publish the data received from Ethernet (TCP/UDP messages) into a MQTT Server. These gateways allow a fast and easy access to the IoT world and they are compatible with IoT Servers that support MQTT. The MQTT communication can be encrypted using TLS / SSL protocols, ensuring a SECURE and SAFE communication.The Ethernet messages and the commands to s..
1 029,30 zł
HD67932-2-B2 HD67932-2-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67932-2-B2
Industrial Serial (RS232) to MQTT converter, housing type B (wide), DIN rail mount. HD67934-B2 allows to publish the data received from Serial into a MQTT Server. These gateways allow a fast and easy access to the IoT world and they are compatible with IoT Servers that support MQTT protocol. The MQTT communication can be encrypted using TLS / SSL protocols, ensuring a SECURE and SAFE communication.The Serial messages and the commands to send will..
1 029,30 zł
HD67932-4-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67932-4-B2
Industrial Serial (RS485) to MQTT converter, housing type B (wide), DIN rail mount. HD67934-B2 allows to publish the data received from Serial into a MQTT Server. These gateways allow a fast and easy access to the IoT world and they are compatible with IoT Servers that support MQTT protocol. The MQTT communication can be encrypted using TLS / SSL protocols, ensuring a SECURE and SAFE communication.The Serial messages and the commands to send will..
1 029,30 zł
HD67933-2-B2 - Modbus Master to MQTT converter with TLS/SSL, housing type B, DIN rail mount, RS-232 port, RJ45 Ethernet, 115200 bps, IIoT integration HD67933-2-B2 - Modbus Master to MQTT converter with TLS/SSL, housing type B, DIN rail mount, RS-232 port, RJ45 Ethernet, 115200 bps, IIoT integration
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67933-2-B2
Industrial Modbus master to MQTT converter, housing type B (wide), DIN rail mount. The HD67933-B2 is a high-performance industrial gateway designed to connect Modbus Master networks to MQTT-based IoT platforms. It enables real-time publishing of data read from Modbus Slave devices into MQTT servers, providing a direct bridge between traditional automation systems and the modern Industrial Internet of Things (IIoT). This allows process data..
1 029,30 zł
HD67933-4-B2 - Modbus Master to MQTT converter with TLS/SSL, RS-485, RJ45 Ethernet, housing type B, DIN rail mount, 115200 bps, for IIoT integration HD67933-4-B2 - Modbus Master to MQTT converter with TLS/SSL, RS-485, RJ45 Ethernet, housing type B, DIN rail mount, 115200 bps, for IIoT integration
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67933-4-B2
Industrial Modbus master to MQTT converter, housing type B (wide), DIN rail mount.  The HD67933-4-B2 is a high-performance industrial gateway that enables direct integration between Modbus Master networks and MQTT-based IoT platforms. It allows users to publish data read from Modbus Slave devices into an MQTT server in real time, creating a bridge between traditional field devices and modern IIoT infrastructures. With TLS/SSL encryption..
1 029,30 zł
HD67934-2-B2 - Modbus Slave to MQTT converter with TLS/SSL, RS-232, RJ45 Ethernet, sniffer mode, housing type B, DIN rail mount, 115200 bps, IIoT integration
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67934-2-B2
Industrial Modbus slave to MQTT converter, housing type B (wide), DIN rail mount.  The HD67934-2-B2 is a high-performance industrial gateway that enables seamless integration between Modbus Slave devices and MQTT-based IoT infrastructures. It allows both publishing and receiving data via an MQTT server, enabling full bidirectional communication with Modbus Masters such as PLCs, SCADA systems, or building management controllers. In addit..
1 029,30 zł
HD67934-4-B2 - Modbus Slave to MQTT converter with TLS/SSL, RS-485, sniffer mode, DIN rail mount, housing type B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67934-4-B2
Industrial Modbus slave to MQTT converter, housing type B (wide), DIN rail mount. HD67934-4-B2 is a high-performance industrial gateway designed to seamlessly integrate Modbus Slave devices with the IoT ecosystem using the MQTT protocol. It enables both publishing and retrieving data from an MQTT Server via a Modbus Master, such as PLC, SCADA systems, or building management systems. Additionally, the device supports an advanced Sniffer mod..
1 029,30 zł
HD67935-B2 - Modbus TCP Master to MQTT converter with TLS/SSL, 1x Ethernet, DIN rail mount, secure IoT integration, 10/100 Base-T, housing type B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67935-B2
Industrial Modbus TCP master to MQTT converter, housing type B (wide), DIN rail mount. The HD67935-B2 is a robust industrial gateway that enables seamless integration between a Modbus TCP Master network and the IoT ecosystem using the MQTT protocol. It allows reading data from multiple Modbus TCP slave devices and publishing it directly to an MQTT server, as well as receiving commands from MQTT and forwarding them to Modbus TCP devices. Th..
1 029,30 zł
HD67936-B2 - Modbus TCP Slave to MQTT with TLS/SSL,, Type B housing DIN-rail
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67936-B2
Industrial Modbus TCP slave to MQTT converter, housing type B (wide), DIN rail mount.  HD67936-B2 allows to integrate a Modbus TCP network with the IoT world based on MQTT net. It also allows to publish and get the data into/from a MQTT Server using a Modbus TCP Master (like PLC, SCADA etc.). By bridging Modbus registers to MQTT topics, the device exposes field data to dashboards and analytics without changing existing PLC logic. E..
1 029,30 zł
MBus to USB converter for up to 20 meters - HD67024-B2-20
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67024-B2-20
Industrial MBus to USB converter, master MBus up to 20 slaves, DIN rali mount, housing type B (wide), DIN rail mount. This series allows to read/write MBus Slaves by USB, ensuring galvanic isolation between MBus and USB. HD67024 is a configurable device with logic inside and it allows to connect up to 20 MBus Slaves to USB. Converter is easy to configure thanks to free SW67024 software.Configuration:Thanks to SW67024 software on your PC you can:D..
1 029,30 zł
NS-200AFCS-T CR NS-200AFCS-T CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: NS-200AFCS-T CR
Industrial Ethernet to Fiber Media Converter, single mode, SC connector. The NS-200AF series is a Ethernet (10/100 Base-TX) to Media (100 Base-FX) converter. The Ethernet supports 10/100M auto negotiation feature and auto MDI/MDI-X function. NS-200A can work normally from -30 ~ 75°C and accepts a wide voltage range from +12 ~ 48 VDC.Features:Automatic MDI/MDI-X crossover for plug-and-playSupports both 10/100 Mbps speed auto negotiationStore-and-f..
1 034,00 zł
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