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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 - SFAR products programming cable
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 - Tape for connecting Modbus I / O modules SLIM series MOD-QC - Tape for connecting Modbus I / O modules SLIM series
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 RS48..
13.63 zł
Model232I - Industrial RS232 separator with photoelectric isolation up to 5000V. Model232I - Industrial RS232 separator with photoelectric isolation up to 5000V.
Shipping 24h Test for Free! 6 years warranty
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..
96.59 zł
FL485 - Industrial RS-485 separator with 4500V isolation and Alnico housing. FL485 - Industrial RS-485 separator with 4500V isolation and Alnico housing.
Shipping 24h Test for Free! 6 years warranty
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 spe..
98.70 zł
FL-BNC - High quality BNC overvoltage limiter, protection up to 4500V
6 years warranty 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 agai..
112.80 zł
FL45 - Surge protector for RJ45 signal, limit voltage 40V, working temperature range from -20°C to 60°C FL45 - Surge protector for RJ45 signal, limit voltage 40V, working temperature range from -20°C to 60°C
Shipping 24h Test for Free! 6 years warranty
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 FL4..
112.80 zł
Model232D - Industrial RS232 repeater - Model232D
Shipping 24h Test for Free! 6 years warranty
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 appli..
118.72 zł
FL45-E1000 - FL45-1000 is Surge protector for 1000M Ethernet RJ45 signal, limit voltage 40V, working temperature range from -20°C to 60°C
6 years warranty 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...
169.20 zł
FL45-E1000-POE - Surge Protection Devices For Power Over Ethernet The POE Surge Protectors are rugged and effective surge protectors for ethernet
6 years warranty 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 protecto..
197.40 zł
SW485GI - Isolated (3000V) RS-485/422 repeater or RS-232 to RS485/422 converter SW485GI - Isolated (3000V) RS-485/422 repeater or RS-232 to RS485/422 converter
Shipping 24h Test for Free! 6 years warranty
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 perform..
251.54 zł
LC-103 CR - 1-channel AC Digital Input and 3-channel Relay Output Lighting Control Module LC-103 CR - 1-channel AC Digital Input and 3-channel Relay Output Lighting Control Module
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: LC-103 CR
1-channel AC Digital Input and 3-channel Relay Output Lighting Control Module. The LC-103 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels.The LC-103 provid..
333.70 zł
LC-101 CR - 1-channel AC Digital Input and 1-channel Relay Output Lighting Control Module with screw mount LC-101 CR - 1-channel AC Digital Input and 1-channel Relay Output Lighting Control Module with screw mount
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: LC-101 CR
1-channel AC Digital Input and 1-channel Relay Output Lighting Control Module with screw mount. The LC-101 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels...
343.10 zł
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