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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.


MINI USB
2-3 days
Brand: Aspar Model: MINI USB
SFAR products programming cable. MODBUS I / O modulesProgrammable temperature transducersCable length 1m or 1.8m..
0,00 zł
MOD-QC MOD-QC
2-3 days
Brand: Aspar Model: MOD-QC
Tape for connecting Modbus I / O modules SLIM series. Tape for connecting SLIM Modbus I / O modules through the Quick Connector slot, which is equipped with each SLIM module.Moves from module to module:Power of the individual modulesRS-485Just supply the module and RS485 power to the first module. With the MOD-QC tape, both values will be passed to the next modules...
13,63 zł
TLC485 TLC485
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: TLC485
Industrial bidirectional RS-232 to RS-485 converter, without opto-isolation, powered from port.The TLC485 is a bi-directional port-powered RS-232 to RS-485 converter. 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 powered from the RS232 data lines. It also supports data direction auto-turnaround. Th..
74,45 zł
Model232I Model232I
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: Model232I
Industrial RS232 separator with photoelectric isolation up to 5000V.Model232I is a kind of RS232 system communication serial port optic isolation product. This product support transmission rate as high as 912600bps, no external power needed, optic electric isolation 5KV, is applicable in tough environment. According to different customer need, separately corresponds to three line serial port application with RTS/CTS (or DTR/CTS). Transmission dis..
96,59 zł
FL485 FL485
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: FL485
Industrial RS-485 separator with 4500V isolation and Alnico housing. Optoisolator (4500V), RS-485 interface separator (repeater) with Alnico housing compatible with IEC61000-4-5 and ITU-TK20&K21 standards for top quality surge protectors. FL485 have high respond speed, low output rudimental voltage, ascendance transfer performance. All have #10 ground screws which must be connected to a solid ground.Features:Three stages of protection on ever..
98,70 zł
FL-BNC
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: FL-BNC
High quality BNC overvoltage limiter, protection up to 4500V. IEC61000-4-5 and ITU-TK20 & K21 are the recognized standards for top quality surge protectors, FL-BNC made by the high response surge arresters, the advantage is allowed clamping voltage and low loss against high speed signal, because it had a low capacitance. Designed to protect the equipment and coaxial line, connect in series. Interface accord with BNC standard.Features:IEC61000..
112,80 zł
FL45 FL45
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: FL45
Surge protector for RJ45 signal, limit voltage 40V, working temperature range from -20°C to 60°C. The FL45 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 has recognized the highest quality surge protection standards IEC61000-4-5 and ITU-TK20;K21. The FL45 is designed to protect 100Base-T local and wide area communication lines.Fea..
112,80 zł
Model1100-M - multimode fiber media converter,1xLAN 100Mb/s, SC/ST Model1100-M - multimode fiber media converter,1xLAN 100Mb/s, SC/ST
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: Model1100-M
Ethernet 10/100M, 1310nm, Multi-mode, 2 km, 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 a shielded RJ45 Ether..
118,06 zł
Model232D
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: Model232D
Industrial RS232 repeater with optoisolation up to 2500V. Model232D is a kind of RS-232 system communication extending product. It has auto-sense serial ratetransmission rate, optic electric isolation 2500V and there's no external power needed, so Model232D can be applicated in tough work environments. Transmission distance at 9,600bps is 2,000m and there is a stable performance. Model232D has 2500 volts of isolation, which is twice the rating of..
118,72 zł
SW485C
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: SW485C
The SW485C is an industrial grade bi-directional port-powered RS232 to RS485 or RS422 converter in a 9 pin format. It can convert any standard full duplex RS232 port to any two-wire balanced half duplex RS485 port or four-wire balanced full duplex RS485 or RS422 port. In simple terms, it will convert any RS232 signal to a RS485 or RS422 signal and vice versa. The unit is powered from the RS232 data lines. It also supports data direction auto-turn..
118,72 zł
USB485 USB485
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: USB485
USB to RS-485/422 industrial converter. USB485 is a kind of USB to RS-485/422 industrial intelligent converter. It is the best solution for the communication between USB and RS-485/422. Compared with RS-232 to RS-485/422 converter, USB to RS-485/422 converter has many advantages. Alternative offer for UPort 1130.Features:Small volume, easy installationNo power supply needed, plug and playSingle chip(ASIC) USB port to serial port communicationTran..
118,72 zł
Model1100-S - Singlemode fiber media converter,1xLAN 100Mb/s, SC/ST Model1100-S - Singlemode fiber media converter,1xLAN 100Mb/s, SC/ST
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: Model1100-S
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 ..
122,20 zł
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