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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-7522 CR tM-7522 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-7522 CR
Tiny addressable serial converter, PoE and 2 RS-232 Ports and 1 RS-485 Port. Easy Configuration (DCON & Web)The tM-752N series supports the DCON protocol (compatible with I-752N series), allowing users to modify the settings of the module, such as the serial port configuration and the operation mode, etc. The module also has a built-in web server which provides an intuitive web management interface that simplifies the configuration of the mod..
728.50 zł
I-7051 CR I-7051 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7051 CR
16-channel Isolated Digital Input Module using the DCON Protocol. 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 and 3750 VDC ..
737.90 zł
tM-TH8 CR tM-TH8 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-TH8 CR
8-channel Isolation Thermistor Input Module with High Voltage Protection. The tM-TH8 is an 8-channel isolated thermistor input module that can be used for measuring temperatures via a thermistor. Many types of thermistor are supported and user-defined types can be added by specifying the Steinhart coefficients, if necessary. The added 2500 VDC intra-module isolation and 120 VDC overvoltage protection for the thermistor on the tM-TH8 ensure that t..
737.90 zł
I-7065BD CR I-7065BD CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7065BD CR
4-channel Isolated Digital Input and 5-channel DC SSR Output Module using the DCON Protocol 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 connections. In compar..
747.30 zł
I-7563 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7563 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..
747.30 zł
tM-AD5 CR tM-AD5 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-AD5 CR
5-channel Isolated Analog Input Module with High Voltage Protection. The tM-AD5 is an analog input module that includes 5 differential analog input channels and provides a programmable input range on all analog inputs (+/- 500 mV, +/- 1 V, +/- 2.5 V, +/- 5 V, +/- 10 V). It provides a high overvoltage protection of 120 VDC. The sampling rate of the tM-AD5 is adjustable and is available in either fast or normal mode and It also provides 4 KV ESD pr..
747.30 zł
tM-AD5C CR tM-AD5C CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-AD5C CR
5-channel Isolated Analog Input Module with High Voltage Protection. The tM-AD5C is an analog input module that includes 5 differential analog input channels and provides a programmable input range on all analog inputs (+/- 20 mA, 0 ~ 20 mA, 4 ~ 20 mA). The sampling rate of the tM-AD5C is adjustable and is available in either fast or normal mode and It also provides 4 KV ESD protection as well as 2500 Vrms intra-module isolation.Features:5-channe..
747.30 zł
MOD-8AI MOD-8AI
2-3 days
Brand: Aspar Model: MOD-8AI
Industrial expansion module, 8 universal analog inputs to Modbus RTU, with RS485 interface. Features:INPUT: 8 analog inputs, universalOUTPUT: Interface RS485: Modbus (ASCII, RTU)Power supply: 10 ~ 38VDC; 10 ~ 28VACOperation of voltage inputs + 10V, + -10VSupports current inputs +-20mA, 0-20mA, 4-20mAEach channel can be freely set to measure voltage or current with different measuring rangesTwo configurable NPN outputs up to 500mA, switched remote..
752.00 zł
MOD-8AO MOD-8AO
2-3 days
Brand: Aspar Model: MOD-8AO
Industrial expansion module, 8 analog universal outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 8 analogue outputs, universalINPUT: Interface RS485: Modbus (ASCII, RTU)Voltage outputs support: 0 - 10VCurrent outputs support: 0-20mA, 4-20mAEach channel can be freely set as a voltage or current outputLEDs for signaling the status of the outputsLarge, convenient cable connectors (up to 2.5 mm2)1000V galvanic isolation between RS485 int..
752.00 zł
I-7055 CR I-7055 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7055 CR
8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module using the DCON Protocol. 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. There are options to ..
756.70 zł
I-7055-NPN CR I-7055-NPN CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7055-NPN CR
8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module using the DCON Protocol. 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. There are options to ..
756.70 zł
I-7080 CR I-7080 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7080 CR
2-channel Counter/Frequency Input Module with DCON Protocol.The I-7080 offers 2 high speed counter or frequency input channels and 2 digital output channels. Two types of digital input are provided, one for isolated input, and the other is for non-isolated input. The isolated input provides 3750 Vrms isolation voltage and the non-isolated input provides programmable threshold voltage level. The built-in digital filter is valid for both non-isolat..
756.70 zł
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