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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.


HD67813-KNX-232-B2 – Modbus RS232 Slave to KNX TP converter, DIN rail mount, housing type B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67813-KNX-232-B2
Industrial Modbus RS232 slave to KNX TP converter, housing type B (wide), DIN rail mount. HD67813 allows to communicate KNX TP with RS232 Modbus RTU devices like SCADA, HMI or Modbus controllers. This RS232 Slave version is ideal for projects where the converter must act as a Modbus slave device connected to a master system while still bridging data to the KNX TP bus. The robust housing type B ensures a solid mechanical design, suitable fo..
1 546,30 zł
HD67813-KNX-485-B2 - Modbus RS485 Slave to KNX TP Converter, housing type B, DIN rail mount
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67813-KNX-485-B2
Industrial Modbus RS485 slave to KNX TP converter, type B (wide) housing, DIN rail mounting. HD67813 allows communication between KNX devices such as air conditioning, heating, lighting, security systems and Modbus RTU devices with RS485 such as controllers or HMI panels. The product features a capacity of up to 1440 bytes for both reading and writing. An important aspect is the triple isolation between the different parts of the ..
1 546,30 zł
HD67821-KNX-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67821-KNX-B2
Industrial DMX to KNX Converter, housing type B (wide), DIN rail mount. HD67821-KNX-B2 allows you to connect some DMX devices (for example a Light System...) with an KNX network (for example some sensors, dimmers, KNX smart HOME System...) in order to exchange the informations between the networks. Converter is easy to configure thanks to free SW67821 software.Configuration:Thanks to the SW67821 software on your PC you can:Define the parameters o..
1 546,30 zł
HD67834-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67834-B2
Industrial DALI to CAN converter, housing type B (wide), DIN rail mount. HD67834-B2 is a DALI / CAN Converter so you can connect a DALI net (a light system etc...) with a CAN network in order to exchange informations between the nets. Converter is easy to configure thanks to free SW67834 software.Specifications:Ports: 1x DALI; 1x CANDALI protocol: DALICAN protocol: CANData Rates DALI: 1200 bpsData Rates CAN: Up to 1 MbpsDALI Connector: 2way 5mm t..
1 546,30 zł
HD67835-B2
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67835-B2
Industrial DALI to CANopen converter, housing type B (wide), DIN rail mount. HD67835-B2 is a DALI / CANopen Converter so you can connect a DALI net (a light system etc...) with a CANopen network in order to exchange informations between the nets. Converter is easy to configure thanks to free SW67835 software.Specifications:Ports: 1x DALI; 1x CANDALI protocol: DALICAN protocol: CANopenData Rates DALI: 1200 bpsData Rates CANopen: Up to 1 MbpsDALI C..
1 546,30 zł
HD67861-5-A1-4B – Industrial IO-Link Master / Modbus Slave Converter with 4 IO-Link Class B Ports
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67861-5-A1-4B
HD67861-5-A1-4B Converter – IO-Link Master with four Class B ports and Modbus RTU Slave support. The HD67861-5-A1-4B is a high-performance industrial IO-Link Master / Modbus RTU Slave converter designed for applications requiring efficient integration of IO-Link devices with automation systems based on the Modbus RTU protocol. It enables seamless communication between modern IO-Link sensors, actuators and intelligent modules, and Modbus-b..
1 546,30 zł
HD67861-A1-2A-2B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67861-A1-2A-2B
Industrial IO-Link to Modbus slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: A, 2xIO-Link ports: B The HD67861-A1 is a IO-Link Master to Modbus RTU Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a Modbus Master ( like a PLC, PC..) in order to exchange informations between the nets. The converters are available in different configurations and support type A and..
1 546,30 zł
HD67861-A1-4A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67861-A1-4A
Industrial IO-Link to Modbus slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 4xIO-Link ports: A The HD67861-A1 is a IO-Link Master to Modbus RTU Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a Modbus Master ( like a PLC, PC..) in order to exchange informations between the nets. The converters are available in different configurations and support type A and type B IO-Link comm..
1 546,30 zł
HD67865-IP-A1-2A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67865-IP-A1-2A
Industrial IO-Link to BACnet IP Slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: A The HD67865-A1 is a IO-Link Master to BACnet Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a BACnet Master ( like a Supervisory System, PC..) in order to exchange informations between the nets.​ The converters are available in different configurations and support type A and type..
1 546,30 zł
HD67865-IP-A1-2B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67865-IP-A1-2B
Industrial IO-Link to BACnet IP slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: B The HD67865-A1 is a IO-Link Master to BACnet Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a BACnet Master ( like a Supervisory System, PC..) in order to exchange informations between the nets.​ The converters are available in different configurations and support type A and type..
1 546,30 zł
HD67865-MSTP-A1-2A
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67865-MSTP-A1-2A
Industrial IO-Link to BACnet MSTP Slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: A The HD67865-A1 is a IO-Link Master to BACnet Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a BACnet Master ( like a Supervisory System, PC..) in order to exchange informations between the nets.​ The converters are available in different configurations and support type A and ty..
1 546,30 zł
HD67865-MSTP-A1-2B
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67865-MSTP-A1-2B
Industrial IO-Link to BACnet MSTP slave - converter, housing type A, DIN rail mount. Terminal Blocks Connectors, 2xIO-Link ports: B The HD67865-A1 is a IO-Link Master to BACnet Slave Converter so you can connect some IO-Link Slaves (like Sensors / Actuators) with a BACnet Master ( like a Supervisory System, PC..) in order to exchange informations between the nets.​ The converters are available in different configurations and support type A and ty..
1 546,30 zł
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