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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.


tM-P4A4 CR tM-P4A4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-P4A4 CR
4-channel Isolated Digital Input and 4-channel Source-type Isolated Digital Output Module.The tM-P4A4 provides 4 channels for digital input and 4 channels for digital output, each of which features photocouple isolation. The tM-P4A4 supports source-type output with short circuit protection, while input is sink-type. All input channels can be used an 16-bit counters. There are options for configuring power-on and safe digital output values. 4 kV E..
564.00 zł
tM-P4C4 CR tM-P4C4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-P4C4 CR
4-channel Isolated Digital Input and 4-channel Isolated Digital Output Module.The tM-P4C4 provides 4 channels for digital input and 4 channels for digital output, each of which features photocouple isolation. The tM-P4C4 supports sink-type output with short circuit protection, while input is source-type. All input channels can be used an 16-bit counters. There are options for configuring power-on and safe digital output values. 4 kV ESD protectio..
564.00 zł
tM-P8 CR tM-P8 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-P8 CR
8-channel Isolated Digital Input Module.The tM-P8 offers 8 channels for digital input, each of which features photocouple isolation. In addition input can be either sink- or source-type using wire connections and all channels can be used as 16-bit counters. 4 kV ESD protection and 3750 VDC intra-module isolation are also provided.Features:Sink- and Source-type Digital InputsPhotocouple IsolationAll Channels Can Be Used As 16-bit CountersDual Watc..
564.00 zł
I-7520U CR I-7520U CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7520U CR
Isolated RS-232 to 4 Channels RS-485 Converter. RS-485 Active HubThe I-7520U is isolated RS-232 to 4-ch RS-485 active star wiring hub, it has 4 independent RS-485 output channels and one RS-232 input channel. Each output channel is equipped with an individual driver. The data from a master to the input channel will simultaneously be forwarded to all the four output channels.Baud Rate SettingThe I-7520U provides 2 modes of baud rate setting, one i..
578.10 zł
tM-7561 CR tM-7561 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-7561 CR
USB to Isolated RS-485 Converter. The tM-7561 is a cost-effective USB to RS-485 converter. Connecting the tM-7561 to a PC, you get one RS-485 port that allows you to access RS-485 devices through the USB interface. Like the I-7520, the tM-7561 contains "Self-Tuner" chip auto-tunes the baud rate and data format to the RS-485 network. The tM-7561 module derives its power from the USB port and doesn't need external power adapter.Features:USB 1.1/2.0..
578.10 zł
I-7063 CR I-7063 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7063 CR
8-channel Isolated Digital Input and 3-channel Relay Output Module using the DCON Protocol. The I-7063 module provides 8 digital input channels and 3 Form A relay output channels, and the 7065 series provides 4 digital input channels and 5 Form A relay 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 connections. The I-7063D ..
582.80 zł
I-7551 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7551 CR
Industrial Isolated RS-232 to RS-232 Converter. The I-7551 Photo coupler provides a complete full-duplex (including control signal) electrical isolation channel between two RS-232 devices. This isolation is an important consideration if a system uses different power sources, has noisy signals, or must operate at different ground potentials.The I-7551 provides the option of reconfiguring which control signal is used. CTS can be selected instead of..
582.80 zł
tET-PD2R1 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tET-PD2R1 CR
Tiny Ethernet module with 2-channel Digital Inputs (Wet Contact) and 1-channel Form A relay (RoHS).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 conn..
582.80 zł
I-7050 CR I-7050 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7050 CR
7-channel Non-isolated Digital Input and 8-channel Non-isolated Digital Output Module using the DCON Protocol. 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 and safe value..
592.20 zł
I-87046W I-87046W
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87046W
16-channel Non-isolated Digital Input Module using the DCON Protocol. The I-87046W is a 16-channel Digital Input module that can be used for longdistance measurement, with an effective distance of up to 500 meters for dry contact connections. All channels can be used as 16-bit counters and 4 kV ESD protection is provided. The I-87046W also includes 16 LED indicators that can be used to monitor the status of the Digital Input channels.Features:16-..
592.20 zł
tET-A4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tET-A4 CR
Tiny Ethernet module with 4-channel 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 dev..
592.20 zł
tET-C4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tET-C4 CR
Tiny Ethernet module with 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 electronic devic..
592.20 zł
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