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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-16O-PNP SDM-16O-PNP
2-3 days
Brand: Aspar Model: SDM-16O-PNP
Industrial expansion module, 16 PNP digital outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 16 digital outputs PNPINPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN railDefault (configurable) output states when power is turned onPNP type outputs with maxim..
723.80 zł
SDM-6RO SDM-6RO
2-3 days
Brand: Aspar Model: SDM-6RO
Industrial expansion module, 6 relay outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 6 relay outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN railDefault (configurable) output states when power is turned onOutputs both NO and NC typeMaximum curren..
723.80 zł
SDM-8I8O SDM-8I8O
Shipping 24h Test for Free!
Brand: Aspar Model: SDM-8I8O
Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface. Features:INPUT / OUTPUT: 8 digital inputs, 8 PNP outputsOUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN rail8 configurable 32-bit countersCounter modes: pulse..
723.80 zł
ECAT-2053 CR ECAT-2053 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: ECAT-2053 CR
EtherCAT Slave I/O Module with Isolated 16-ch Digital Inputs. The ECAT-2000 is equipped with the EtherCAT protocol and installed by daisy chain connection which permits the flexibility in devices installation and reduces infrastructure and operation costs. All the modul..
728.50 zł
M-7058D CR M-7058D CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7058D CR
8-channel Isolated AC/DC Digital Input Module using the DCON and Modbus Protocol with LED Display. 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 ..
728.50 zł
M-7059D CR M-7059D CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7059D CR
8-channel Isolated AC/DC Digital Input Module using the DCON and Modbus Protocol with LED Display. 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 ..
728.50 zł
I-7051 CR I-7051 CR
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,..
737.90 zł
tM-TH8 CR tM-TH8 CR
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..
737.90 zł
I-7065BD CR I-7065BD CR
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 channel..
747.30 zł
I-7563 CR
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, y..
747.30 zł
tM-AD5 CR tM-AD5 CR
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)...
747.30 zł
tM-AD5C CR tM-AD5C CR
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 rat..
747.30 zł
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