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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.


USB232
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: USB232
USB to RS-232 industrial converter. USB232 smart adapter cable lets PC users add an additional serial port for RS-232 connections using USB. It provides an external plug-and-play port for convenient connection of cell phones, digital cameras, modems and ISDN terminals. Just plug the device into the serial cable and the cable into the USB port. Automatic handshake is supported. No IRQs are required. This smart cable Transmits up to 230 kbps with a..
122,76 zł
MODEL485P MODEL485P
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Brand: 3onedata Model: MODEL485P
RS232 to RS485/422 converter, 2500V isolation, 9VDC. The Model485P is a high performance, multifunctional RS-232/485/422 interface converter. The product configure out connect power, optic-electrical isolation more than 2.5KV. Have small volume, far transmission distance, high rate, steadily performance and so on. It is abroad used in industry control system, It is an interface convert product that have good between performance to price. Adopt it..
133,48 zł
Model1200-M Model1200-M
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Brand: 3onedata Model: Model1200-M
Industrial Ethernet Media Converter with 2 10/100BaseT(X) Ethernet ports to multi-mode optic fiber. Model1200, 10/100M Media Converter, provides a cost effective plug-and-play solution for long-range 10Base-T or 100Base-TX Ethernet extensions and added benefit of 10/100 auto-negotiation, making it the perfect choice when planning future upgrades of 10Base-T networks. Model1200 Ethernet Fiber converters are ultra-miniature in size and feature a sh..
147,53 zł
Model1200-S Model1200-S
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: Model1200-S
Industrial Ethernet Media Converter with 2 10/100BaseT(X) Ethernet ports to multi-mode optic fiber. Model1200, 10/100M Media Converter, provides a cost effective plug-and-play solution for long-range 10Base-T or 100Base-TX Ethernet extensions and added benefit of 10/100 auto-negotiation, making it the perfect choice when planning future upgrades of 10Base-T networks. Model1200 Ethernet Fiber converters are ultra-miniature in size and feature a sh..
162,29 zł
Model1200-SS Model1200-SS
6 year warranty Quantity discount -3 % 5-10 days
Brand: 3onedata Model: Model1200-SS
Industrial Ethernet Media Converter with 2 10/100BaseT(X) Ethernet ports to single-mode, single fiber. Model1200, 10/100M Media Converter, provides a cost effective plug-and-play solution for long-range 10Base-T or 100Base-TX Ethernet extensions and added benefit of 10/100 auto-negotiation, making it the perfect choice when planning future upgrades of 10Base-T networks. Model1200 Ethernet Fiber converters are ultra-miniature in size and feature a..
157,42 zł 162,29 zł
FL45-E1000
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: FL45-1000
Surge protector for 1000M Ethernet RJ45 signal, limit voltage 40V, working temperature range from -20°C to 60°C. The FL45-E1000 features high-performance surge arresters, which feature clamping voltage and low loss over high-speed signals because of its low capacitance. In addition, the FL45-E1000 has recognized the highest quality surge protection standards IEC61000-4-5 and ITU-TK20&K21. The FL45-E1000 is designed to protect up to 1000Base-T..
169,20 zł
USB485I USB485I
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Brand: 3onedata Model: USB485I
USB to RS-232/422/485 industrial converter, 2000V isolation, 9~48VDC. USB485I is kind of industrial USB to RS-232/485/422 converter, plug and play, 9-48VDC external power supply or USB power supply or both of them, it supports DIN-Rail and wall mounting installation, can support latest operation system, wide working temperature, 2KVAC isolation protect, easy using for your projects. Alternative offer for UPort 1150I.Features:Convert USB to 1 RS-2..
185,13 zł
FL45-E1000-POE
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: FL45-E1000-POE
Surge Protection Devices For Power Over Ethernet The POE Surge Protectors are rugged and effective surge protectors for ethernet based systems. They provide a high level of protection against power surges caused by lightning and other causes.FeaturesThese surge protectors are used to protect expensive equipment from damage caused by electrical surgesThe ultra-sharp clamping response permanently eliminates transients from your POE applications The..
197,40 zł
Model1100-SS - Singlemode, single fiber, media converter,1xLAN 100Mb/s Model1100-SS - Singlemode, single fiber, media converter,1xLAN 100Mb/s
6 year warranty Quantity discount -3 % 5-10 days
Brand: 3onedata Model: Model1100-SS
Ethernet 10/100M, 1310nm, Single-mode, up to 20 km transmission, 10/100M Fast Ethernet Media Converter. Model1100, 10/100M Media Converter, provides a cost effective plug-and-play solution for long-range 10Base-T or 100Base-TX Ethernet extensions and added benefit of 10/100 auto-negotiation, making it the perfect choice when planning future upgrades of 10Base-T networks. Model1100 Ethernet Fiber converters are ultra-miniature in size and feature ..
191,48 zł 197,40 zł
SW485WA SW485WA
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: SW485WA
The SW485WA is an industrial grade bi-directional port-powered 2500V optoisolated RS232 to RS485 converter in a 9 pin format. The SW485WA is an industrial grade bi-directional port-powered 2500V opto-isolated RS232 to RS485 converter in a 9 pin format. It can convert any standard full duplex RS232C port to any two-wire balanced half duplex RS485 port. In simple terms, it will convert any RS232 signal to a RS485 signal and vice versa. The unit is ..
199,89 zł
SW485GI SW485GI
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Brand: 3onedata Model: SW485GI
Isolated (3000V) RS-485/422 repeater or RS-232 to RS485/422 converter. It can use one function at the same time. The product must have 12-36VDC power input, optic-electrical isolation more than 3KV. Have small volume, 3000m transfer distance, high rate, steadily performance and so on. It is abroad used in industry control system, It is a best performance and price interface converter and Repeater.Features:Support DIN-rail, Terminal block connecti..
251,54 zł
Industrial M-Bus to RS232 & RS485 converter, up to 10 meters - M-BUS S (2 year warranty) Industrial M-Bus to RS232 & RS485 converter, up to 10 meters - M-BUS S (2 year warranty)
Shipping 24h Test for Free!
Brand: T3 HARDWARE SOLUTIONS Model: M-BUS S
T3 M-Bus S is a transparent industrial M-Bus to RS232/RS485 converter, M-Bus master for up to 10 slaves. The device operates as a master on the M-Bus side and allows the connection of up to 10 M-Bus slave devices. T3 M-Bus S is a compact and reliable interface for integrating utility meters with supervisory systems. It acts as a transparent bridge between the electrical and protocol layers of the M-Bus and the standard serial inter..
272,60 zł
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