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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.


HD67405-E4V
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67405-E4V
Industrial isolated CAN Repeater, line extender, with filter data configurable. Metal housing resistant to vibration and shock with triple 4kV isolation between CAN ports and CAN/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector and in fragile environments.Two versions, one with a coating of the PCB (suffix code V) that ensures total protection to the dust (IP65) and another encapsulatio..
1 546,30 zł
HD67411-E4V - CAN to Modbus Master, Mini-Fit®, IP65, metal housing, DIN rail
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67411-E4V
Industrial CAN to Modbus Master converter, metal housing resistant to vibration and shock with triple 4kV isolation between CAN/Modbus Master, CAN/power supply and Modbus Master/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector and in fragile environments. The HD67411-E4V version is equipped with Mini-Fit® connectors and provides IP65 protection, making it resistant to dust an..
1 546,30 zł
HD67412-E4V - CAN to Modbus Slave converter, metal housing, IP65, Mini-Fit® connectors, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67412-E4V
Industrial CAN to Modbus Slave converter, metal housing resistant to vibration and shock with triple 4kV isolation between CAN/Modbus Slave, CAN/power supply and Modbus Slave/power supply. Particularly suitable for installation in cars, trucks, trains, boats, as well as in heavy-duty industrial applications where vibrations, shocks and electrical noise can compromise communication reliability. The HD67412-E4V offers a robust solution ..
1 546,30 zł
HD67421-E4V - CANopen to Modbus RTU (RS485) Master Converter, IP65, metal housing, Mini-Fit® connectors, DIN rail mount
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67421-E4V
Industrial CANopen to Modbus RTU (RS485) master converter, metal housing resistant to vibration and shock with triple 4kV isolation between CANopen/Modbus RTU Master, CANopen/power supply and Modbus RTU Master/power supply. Particularly suitable for installation in cars, trucks, trains, boats, as well as in demanding industrial automation environments where electrical noise, vibrations and shocks are present. The HD67421-E4V has been ..
1 546,30 zł
HD67422-E4V - CANopen to Modbus RTU Slave converter, IP65, metal housing, DIN rail mount, Mini-Fit®
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67422-E4V
Industrial CANopen to Modbus RTU (RS485) slave converter, metal housing resistant to vibration and shock with triple 4kV isolation between CANopen/Modbus RTU Slave, CANopen/power supply and Modbus RTU Slave/power supply. The HD67422-E4V is particularly suitable for installation in cars, trucks, trains, boats, and in demanding industrial automation environments where high resistance to mechanical stress, shocks, and vibrations is required. ..
1 546,30 zł
HD67431-E4V HD67431-E4V
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67431-E4V
Industrial J1939 to Modbus Master converter, metal housing resistant to vibration and shock with triple 4kV isolation between J1939/Modbus Master, J1939/power supply and Modbus Master/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector and in fragile environments.Two versions, one with a coating of the PCB (suffix code V) that ensures total protection to the dust (IP65) and another encapsu..
1 546,30 zł
HD67432-E4V
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67432-E4V
Industrial J1939 to Modbus Slave converter, metal housing resistant to vibration and shock with triple 4kV isolation between J1939/Modbus Slave, J1939/power supply and Modbus Slave/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector and in fragile environments.Two versions, one with a coating of the PCB (suffix code V) that ensures total protection to the dust (IP65) and another encapsulat..
1 546,30 zł
HD67502 - CANopen to Modbus Slave converter, slim housing type A, DIN rail mounting HD67502 - CANopen to Modbus Slave converter, slim housing type A, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67502
Industrial CANopen to Modbus Slave converter, housing type: A (slim), DIN rail mounting. The HD67502 allows seamless conversion between CANopen and Modbus RTU protocols, enabling reliable integration of CANopen devices into Modbus-based supervisory systems. With support for up to 64 RPDO and 32 TPDO, this converter is designed for projects requiring a high number of data objects. One of its strengths is the ability to select from five dif..
1 546,30 zł
HD67507-WiFi-B2-232 - Modbus TCP to RTU master converter, DIN rail, WiFi, up to 240 devices, triple isolation, 8–35VDC, housing type A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67507-WiFi-B2-232
Industrial Modbus TCP slave to Modbus RTU master converter, housing type A (slim), DIN rail mount. On Modbus RTU side you can connect up to 240 devices on one HD67507-WiFi-B2-232 Converter. HD67507-WiFi-B2-232 allows to connect Modbus TCP master with one or more Modbus RTU slaves. Converter is able to manage up to 10 connections from Ethernet side at once, product is easy to install and configure thanks to free SW67507 software. In additio..
1 546,30 zł
HD67507-WiFi-B2-485 - Modbus TCP slave to RTU master converter, WiFi, DIN rail mount, up to 240 RTU devices, housing type A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67507-WiFi-B2-485
Industrial Modbus TCP slave to Modbus RTU master converter, housing type A (slim), DIN rail mount. On Modbus RTU side you can connect up to 240 devices on one HD67507-WiFi-B2-485 converter. HD67507-WiFi-B2-485 allows seamless integration between a Modbus TCP master and multiple Modbus RTU slaves, offering reliable communication for industrial automation, building management, energy monitoring, and SCADA applications. The device supports up..
1 546,30 zł
HD67509-B2 - DMX to Modbus TCP slave converter, 250 kbps, triple isolation, DIN rail mount, housing type: B HD67509-B2 - DMX to Modbus TCP slave converter, 250 kbps, triple isolation, DIN rail mount, housing type: B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67509-B2
Industrial DMX to Modbus TCP Slave converter, housing type: B (wide), DIN rail mounting. HD67509-B2 allows you to connect DMX devices (for example lighting systems, dimmers, stage controllers) with a Modbus TCP network (for example PLCs, PCs, or SCADA supervisory systems) in order to exchange data between the networks. The converter is easy to configure thanks to the free SW67509 software. This device enables the integration of enterta..
1 546,30 zł
HD67511-A1 - CAN to Modbus Master converter, slim DIN rail housing A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67511-A1
Industrial CAN to Modbus Master converter, housing type: A (slim), DIN rail mounting. The HD67511 allows you to connect Modbus RTU Slaves with an existing CAN network. It acts as a reliable bridge between the two communication standards, enabling the exchange of data in real time. The converter is widely used in industrial automation, building management systems and the automotive sector, where robust communication between CAN-based d..
1 546,30 zł
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