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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.


GW1101-1DI(RS485)
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: GW1101-1DI(RS485)
Industrial Modbus RTU / ASCII gateway to Modbus TCP. Communication ports 485 and Ethernet 100MGW1101-1D(RS-485)-DB-P(12-48VDC) is Modbus gateway designed for integrating Modbus RTU/ASCII and Modbus TCP networks; they can achieve the conversion between Modbus RTU/ASCII and Modbus TCP protocols. This product supports 1 RS-485 serial port to 1 100M Ethernet copper port. It adopts wall mounting to meet the requirements of different application scenes..
634.50 zł
I-7050AD CR I-7050AD CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7050AD CR
7-channel Non-isolated Digital Input and 8-channel Non-isolated Digital Output Module using the DCON Protocol with LED Display. The I-7050 series of modules offers channels for digital input and 8 channels for digital output, each of which are non-isolated. The I-7050 supports sink-type output using an NPN open collector, and source-type input. All input channels are able to be used as 16-bit counters. There are also options to enable both power-..
634.50 zł
I-7059 CR I-7059 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7059 CR
8-channel Isolated AC/DC Digital Input Module using the DCON Protocol. The I-7058/I-7059 module offers 8 differential channels for AC/DC Digital Input, each of which features channel-to-channel Photocouple isolation. All DI channels are also able to be used as 16-bit counters. The I-7058D/I-7059D module has 8 LED indicators fthat can be used to monitor the status of the DI channels. ESD protection of ±4 kV and 3750 VDC intra-module isolation are ..
634.50 zł
I-7067D CR I-7067D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7067D CR
7-channel Signal Relay Output Module with DCON Protocol and LED Display. The 7061 series provides 12 power relay output channels and the 7067 series provides 7 signal relay output channels. There are options for configuring power-on and safe values. 4 kV ESD protection and 3750 VDC intra-module isolation are also provided to enhance the noise protection capabilities in industrial environment. The “D” versions of the 7061 series provide 12 LED ind..
634.50 zł
I-87053W CR I-87053W CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87053W CR
16-channel Isolated Digital Input Module with 16-bit Counters. The I-87053W, I-87053PW and I-87053W-A2 offer 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 feature photocouple isolation, and can also be used as 16-bit counters. The I-87053W series provides 16 LED indicators that can be used to monitor the DI channel status. 4 kV ESD protection and ..
634.50 zł
M-7050 CR M-7050 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7050 CR
7-channel Non-isolated Digital Input and 8-channel Non-isolated Digital Output Module using the DCON and Modbus Protocols. The I-7050 series of modules offers channels for digital input and 8 channels for digital output, each of which are non-isolated. The I-7050 supports sink-type output using an NPN open collector, and source-type input. All input channels are able to be used as 16-bit counters. There are also options to enable both power-on an..
634.50 zł
tET-PD2POR2 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tET-PD2POR2 CR
Tiny Ethernet module with 2 Digital Inputs (Wet Contact) and 2 Form A PhotoMos relay. Providing various digital I/O functions, the tET/tPET series is an IP-based Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP protocol. Modbus has become a de facto standard communications protocol in industry, and is now the most commonly available means of connecting indust..
634.50 zł
tM-AD2 CR tM-AD2 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-AD2 CR
2-channel Isolated Analog Input Module with High Voltage Protection. The tM-AD2 is an analog input module that includes 2 single-ended analog input channels and provides a programmable input range on all analog inputs (0 ~ 500 mV, 0 ~ 1 V, 0 ~ 2.5 V, 0 ~ 5 V, 0 ~ 10 V, 0 ~ 20 mA, 4 ~ 20 mA). It provides a high overvoltage protection of 120 VDC. The sampling rate of the tM-AD2 is adjustable and is available in either fast or normal mode and It als..
634.50 zł
tPET-A4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tPET-A4 CR
Tiny Ethernet module with PoE and 4 Digital Outputs (PNP, Source).Providing various digital I/O functions, the tET/tPET series is an IP-based Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP protocol. Modbus has become a de facto standard communications protocol in industry, and is now the most commonly available means of connecting industrial electronic devi..
634.50 zł
tPET-C4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tPET-C4 CR
Tiny Ethernet module with PoE and 4-channel Digital Outputs (NPN, Sink).Providing various digital I/O functions, the tET/tPET series is an IP-based Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP protocol. Modbus has become a de facto standard communications protocol in industry, and is now the most commonly available means of connecting industrial electroni..
634.50 zł
I-7042D CR I-7042D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7042D CR
13-channel Isolated Digital Output Module using the DCON Protocol with LED Display. The I-7042 offers 13 channels digital output channels, each of which features Photocouple isolation and supports sink-type output using an open collector. There are also options to enable both power-on and safe values. The I-7042D has 13 LED indicators that can be used to monitor the status of DO channels. 3750 Vrms intra-module isolation is standard.Features:13-c..
639.20 zł
I-7058 CR I-7058 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7058 CR
8-channel Isolated AC/DC Digital Input Module using the DCON Protocol. The I-7058/I-7059 module offers 8 differential channels for AC/DC Digital Input, each of which features channel-to-channel Photocouple isolation. All DI channels are also able to be used as 16-bit counters. The I-7058D/I-7059D module has 8 LED indicators fthat can be used to monitor the status of the DI channels. ESD protection of ±4 kV and 3750 VDC intra-module isolation are ..
639.20 zł
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