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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.


I-7530A CR I-7530A CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7530A CR
Industrial Intelligent RS-232/RS-485/RS-422 to CAN Converter. The I-7530A is an RS-232/422/485 to CAN converter. It is a member of the I-7530 serial family, and inherits all of the features of the I-7530. The CAN interface of the I-7530A follows ISO 11898-2 specifi cati..
1,113.90 zł
M-7088 CR M-7088 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7088 CR
8-channel PWM Output and 8-channel High-speed Counter Module using the DCON and Modbus Protocols. The I-7088 provides 8-channel PWM (Pulse Width Modulation) Output and 8-channel Counter Input, and can be used to develop powerful and cost-effective analog control systems..
1,118.60 zł
Industrial MBus repeater for 20 meters - HD67032-B2-20 Industrial MBus repeater for 20 meters - HD67032-B2-20
2 year warranty 3-4 days
Brand: ADF Web Model: HD67032-B2-20
Industrial MBus repeater & isolator, master MBus up to 20 slaves, housing type B (wide), DIN rail mount. HD67032M-20 allows to Isolate and Extend a MBus Line, ensuring galvanic isolation between the various MBus branches. HD67032 is a configurable device with Logic ..
1,132.70 zł
Mbus to 485 converter, max 20 meters - HD67022-B2-20 Mbus to 485 converter, max 20 meters - HD67022-B2-20
2 year warranty 3-4 days
Brand: ADF Web Model: HD67022-B2-20
Industrial MBus to RS485 converter, master MBus up to 20 slaves, housing type B (wide), DIN rail mount. This series allows to read/write MBus Slaves by RS-485, ensuring galvanic isolation between MBus and RS-485. HD67022 is a configurable device with logic inside and it..
1,132.70 zł
MBus to RS232 gateway, max 20 meters - HD67021-B2-20
2 year warranty 3-4 days
Brand: ADF Web Model: HD67021-B2-20
Industrial MBus to RS232 converter, master Mbus up to 20 slaves, housing type B (wide), DIN rail mount. This series allows to read/write MBus Slaves by RS-232, ensuring galvanic isolation between MBus and RS-232. HD67021 is a configurable device with logic inside and it..
1,132.70 zł
MBus to USB converter for up to 40 meters - HD67024-B2-40
2 year warranty 3-4 days
Brand: ADF Web Model: HD67024-B2-40
Industrial MBus to USB converter, master MBus up to 40 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 insid..
1,132.70 zł
BMT-DO4
3 year warranty 5-10 days
Brand: Contemporary Controls Model: BMT-DO4
I/O BACnet MS/TP Module with 4 digital outputs.For those installations that support a fieldbus solution such as BACnet MS/TP, Contemporary Controls provides solutions for expanding the number of I/O points in the field. These compact cost-effective modules are available..
1,151.50 zł
I-7521D CR I-7521D CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7521D CR
Programmable Intelligent Communication Controller with LED Display. 1x 5-wire RS-232 or 2-wire RS-485 port and 1x RS-485 port.Onboard 1 KB Queue bufferThe I-752N series module is equipped with a 1 KB queue buffer for its local RS-232 device. All input data can be stored..
1,151.50 zł
HD67150 HD67150
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67150
Industrial J1939 to CANopen Converter, housing type A (slim), DIN rail mount. HD67150 allows you to connect some CANopen devices with a J1939 net (for example an engine, joysticks, etc.) in order to exchange the informations between the networks. Converter is easy ..
1,156.20 zł 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 -25 % 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..
1,156.20 zł 1,546.30 zł
HD67735-A1 HD67735-A1
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67735-A1
Industrial IEC 61850 server to Modbus TCP master converter, housing type A (slim), DIN rail mount. HD67735-A1 allows you to connect a IEC 61850 Client network (for example a SCADA, HMI etc..) with some Modbus TCP slaves in order to exchange informations between the nets..
1,156.20 zł 1,546.30 zł
HD67B08-2-B2
2 year warranty -25 % 3-4 days
Brand: ADF Web Model: HD67B08-2-B2
Industrial OPC UA client to serial converter RS232, housing type B, DIN rail mount. HD67B08-2-B2 is an OPC UA Client to serial converter RS232 and it allows you to read/write the data from one or more OPC UA Servers using Serial devices (like PLC, PC etc). Specification..
1,156.20 zł 1,546.30 zł
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