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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.


SDM-16RO SDM-16RO
2-3 days
Brand: Aspar Model: SDM-16RO
Industrial expansion module, 16 relay outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 16 relay outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN railDefault (configurable) output states when power is turned onMaximum current 3A 250V AC / per COM (module has 4 terminals COM: COM1, COM2, COM3, COM4)Maximum current 3A 30V DC / per COM (module has 4 terminals COM: COM1, COM2, COM3, COM4)Galvanic isolation of outputsLarge, conven..
775,50 zł
CP202-2CI
Shipping 24h Test for Free! 6 year warranty Quantity discount
Brand: 3onedata Model: CP202-2CI
Industrial CAN-bus to Ethernet converter with 2 CAN ports and 1 Ethernet port. CP202-2CI is an industrial CAN-bus to Ethernet Converter with two CAN-bus ports and one Ethernet port, with which the user can easily realize interconnection between CAN-bus and Ethernet, expanding the coverage of CAN-bus network. The CAN port communication rate is 5K~1000Kbps, with TCP Server, TCP Client, and UDP working modes, and supports as many as 3 connections, g..
780,20 zł
I-7051D CR I-7051D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7051D CR
16-channel Isolated Digital Input Module using the DCON Protocol with LED Display. The I-7051 offers 16 channels for digital input, catering for both dry and wet contact, with an effective distance for dry contact of up to 500 meters. All channels not only feature Photocouple isolation, but can also be used as 16- bit counters. The I-7051D has 16 LED indicators that can be used to monitor the status of the digital input channels. 4 kV ESD protect..
780,20 zł
M-7051 CR M-7051 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7051 CR
16-channel Isolated Digital Input Module using the DCON and Modbus Protocols. The I-7051 offers 16 channels for digital input, catering for both dry and wet contact, with an effective distance for dry contact of up to 500 meters. All channels not only feature Photocouple isolation, but can also be used as 16- bit counters. The I-7051D has 16 LED indicators that can be used to monitor the status of the digital input channels. 4 kV ESD protection a..
780,20 zł
I-7055D CR I-7055D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7055D CR
8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module using the DCON Protocol with LED Display. The I-7055 offers 8 isolated channels for digital input and 8 isolated channels for digital output. Either sink-type or source-type digital input can be selected via wire connections. All digital input channels are also able to be used as 16-bit counters. The I-7055 supports source-type output with short circuit protection. Ther..
789,60 zł
I-7055D-NPN CR I-7055D-NPN CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7055D-NPN CR
8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module using the DCON Protocol with LED Display. The I-7055 offers 8 isolated channels for digital input and 8 isolated channels for digital output. Either sink-type or source-type digital input can be selected via wire connections. All digital input channels are also able to be used as 16-bit counters. The I-7055 supports source-type output with short circuit protection. Ther..
789,60 zł
I-7510AR CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7510AR CR
Industrial three way isolated RS-422/485 Repeater/Converter. The I-7510/I-7510A provides 2-way optical isolation between one piece of RS-422/RS-485 equipment and the rest of the system. It can also be used as a repeater to extend the transmission of an existing network. Additionally, an RS-485 system can be expanded beyond the 256 node limitation imposed by the standard. It can also be used to convert a four-wire RS-422 signal into a 2-wire RS-48..
789,60 zł
I-7563U CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7563U CR
Industrial USB to Isolated RS-485 Active Star Wiring Converter. The I-7563/I-7563U is a cost-effective module for transferring serial data via USB. It allows you to connect your serial devices to systems that use a USB interface. Connecting the I-7563/I-7563U to a PC, you get one COM port on system. The I-7563/I-7563U contains "Self-Tuner", this chip auto-tunes the Baud Rate and data format to the RS-485 network. The I-7563/I-7563U module derives..
789,60 zł
I-87042W CR I-87042W CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87042W CR
16-channel Isolated Digital Input & 16-channel Isolated Digital Output Module. I-87042W offers 16 channels for digital input and 16 channels for digital output.Each of which features Photo-couple isolation.I-87042W supports sink type output with short-circuits protection. There are option for power on value and safe value for your consideration. About Input, you can chose sink type or source type input by wire connection. All channels are abl..
789,60 zł
M-7004 CR M-7004 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7004 CR
4-Port Digital Temperature Sensor Module with Daisy-Chain Wiring using the DCON and Modbus Protocols. The M-7004 is a digital temperature sensor module that provides four ports for 2- or 3 wire DS8B20 digital temperature sensor input. The DS18B20 temperature sensor has a high accuracy of ±0.5°C when measuring temperatures between -10 and + 85°C, with a total measurement range of between -55 and +125°C. Up to 20 DS18B20 sensors can be connected to..
789,60 zł
M-7054P CR M-7054P CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7054P CR
16-channel Isolated Universal Digital Input/Output Module using the DCON and Modbus Protocols with High Load Current Output. The M-7054(P) provides 16 channels for universal Digital Input/Output, which can be selected via wire connections. The Digital Input channels are source type and can be used as 16-bit counters, while the Digital Output channels are sink type with short circuit protection and options for configuring power-on and safe Digital..
789,60 zł
M-7065BD CR M-7065BD CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7065BD CR
4-channel Isolated Digital Input and 5-channel DC SSR Output Module using the DCON and Modbus Protocols with LED Display. The I-7063B module provides 8 digital input channels and 3 DC SSR output channels, and the I-7065B provides 4 digital input channels and 5 DC SSR output channels. All digital input channels can be used as 16-bit counters. In addition, the digital input channels can be selected either as sink- or source-type via wire connection..
789,60 zł
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