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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.


Fujitsu RAC and VRF systems to Wi-Fi - FJ-RC-WMP-1 (INWMPFGL001R000) Fujitsu RAC and VRF systems to Wi-Fi - FJ-RC-WMP-1 (INWMPFGL001R000)
3 year warranty 5-7 days
Brand: Intesis Model: FJ-RC-WMP-1
Fujitsu RAC and VRF systems to Wi-Fi. IntesisBox FJ-RC-WMP-1 INWMPFGL001R000 allows a complete and natural integration of Fujitsu Air Conditioners into IP based control systems. Compatible with Domestic Air and VRF Air Conditioners commercialized by Fujitsu.The aim of t..
1,184.40 zł
HD674-A020-2-E4V
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A020-2-E4V
Industrial isolated RS232 to Ethernet Converter, metal housing resistant to vibration and shock with triple 4kV isolation between RS232/Ethernet, RS232/power supply and Ethernet/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the ..
1,184.40 zł
HD674-A020-4-E4V
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A020-4-E4V
Industrial isolated RS485 to Ethernet Converter, metal housing resistant to vibration and shock with triple 4kV isolation between RS485/Ethernet, RS485/power supply and Ethernet/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the ..
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I-7522 CR I-7522 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7522 CR
Programmable Intelligent Communication Controller. 1x 5-wire RS-232 or 2-wire RS-485, 1x RS-232 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 in th..
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LG domestic and VRV AC units to Wi-Fi interface - LG-RC-WMP-1 (INWMPLGE001R000) LG domestic and VRV AC units to Wi-Fi interface - LG-RC-WMP-1 (INWMPLGE001R000)
3 year warranty 5-7 days
Brand: Intesis Model: LG-RC-WMP-1
LG domestic and VRV AC units to Wi-Fi interface. IntesisBox LG-RC-WMP-1 (INWMPLGE001R000) interface allows a complete and natural integration of Mitsubishi Electric air conditioners into IP based control systems. Compatible with VRF line models commercialized by LG.The ..
1,184.40 zł
M-7018 CR M-7018 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7018 CR
8-channel Analog Input Module using the DCON and Modbus Protocols. The I-7018/M-7018 is an 8-channel Analog Input module that provides current and voltage input, as well as thermocouple input. The I-7018R/M-7018R is an upgraded version of the I-7018/M-7018 that includes..
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Mitsubishi Heavy Industries FD and KX6 systems to Wi-Fi Interface - MH-RC-WMP-1 (INWMPMHI001R000) Mitsubishi Heavy Industries FD and KX6 systems to Wi-Fi Interface - MH-RC-WMP-1 (INWMPMHI001R000)
3 year warranty 5-7 days
Brand: Intesis Model: MH-RC-WMP-1
Mitsubishi Heavy Industries FD and KX6 systems to Wi-Fi Interface. IntesisBox MH-RC-WMP-1 (INWMPMHI001R000) interface allows a complete and natural integration of Mitsubishi Heavy Industries air conditioners into IP based control systems. Compatible with RAC Series, FD ..
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BMT-AO4
3 year warranty 5-10 days
Brand: Contemporary Controls Model: BMT-AO4
I/O BACnet MS/TP Module with 4 analog 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 ..
1,193.80 zł
ET-7017 CR ET-7017 CR
Warranty 12 months 2-3 weeks
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1,193.80 zł
I-7565-H1 CR I-7565-H1 CR
Warranty 12 months 2-3 weeks
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High Performance Intelligent USB to 1-port CAN Bus Converter. I-7565-H1 is a high performance intelligent USB to CAN converter. It provides faster CAN bus communication performance than I-7565. I-7565-H1 supports CAN2.0A/2.0B protocol and different baud rates from 5 Kbp..
1,193.80 zł
I-7565-H2 CR I-7565-H2 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7565-H2 CR
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1,193.80 zł
I-87017W CR I-87017W CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87017W CR
8-channel Analog Input Module with High Overvoltage Protection. The I-87017RW is an analog input module with an extremely high-quality protection mechanism where the overvoltage protection can be as high as 240 Vrms. The input type can be set to either voltage or curren..
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