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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.


tPET-P6 CR - Tiny Ethernet module with PoE and 6-channel Digital Inputs (Wet Contact)
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tPET-P6 CR
Tiny Ethernet module with PoE and 6-channel Digital Inputs (Wet Contact).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 ..
601,60 zł
I-7065 CR - 4-channel Isolated Digital Input and 5-channel Relay Output Module using the DCON Protocol I-7065 CR - 4-channel Isolated Digital Input and 5-channel Relay Output Module using the DCON Protocol
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7065 CR
4-channel Isolated Digital Input and 5-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. ..
606,30 zł
I-7066 CR - 7-channel PhotoMOS Relay Output Module using the DCON Protocol I-7066 CR - 7-channel PhotoMOS Relay Output Module using the DCON Protocol
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7066 CR
7-channel PhotoMOS Relay Output Module using the DCON Protocol. Both the I-7066 and the M-7066P feature seven Form A PhotoMOS relay output channels. In comparison to electromechanical relays, the PhotoMOS relays provide a faster response time, greater electrical enduran..
606,30 zł
I-87057W CR - 16-channel Open Collector Isolated Digital Output Module I-87057W CR - 16-channel Open Collector Isolated Digital Output Module
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87057W CR
16-channel Open Collector Isolated Digital Output Module. I-87057PW offers 16 channels for digital output, each of which features Photo-couple isolation. I-87057PW supports sink type output with shortcircuits protection. There are options for power-on value and safe val..
606,30 zł
M-7052 CR - 8-channel Isolated Digital Input Module using the DCON and Modbus Protocols M-7052 CR - 8-channel Isolated Digital Input Module using the DCON and Modbus Protocols
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7052 CR
8-channel Isolated Digital Input Module using the DCON and Modbus Protocols. The I-7052 offers 6 fully independent channels and 2 common ground channels for digital input. The diffential inputs feature channel-to-isolation. In addition, you can choose either sink- or so..
606,30 zł
MOD-16O-PNP - Industrial expansion module, 16 digital outputs on Modbus RTU, with RS485 interface MOD-16O-PNP - Industrial expansion module, 16 digital outputs on Modbus RTU, with RS485 interface
2-3 days
Brand: Aspar Model: MOD-16O-PNP
Industrial expansion module, 16 digital outputs on Modbus RTU, with RS485 interface.Features:OUTPUT: 16 digital outputs PNPINPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN railDefault configurable output states when power is turned onPNP type outputs with maxim..
606,30 zł
MOD-16RO - Industrial expansion module, 16 relay outputs on Modbus RTU, with RS485 interface MOD-16RO - Industrial expansion module, 16 relay outputs on Modbus RTU, with RS485 interface
2-3 days
Brand: Aspar Model: MOD-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 railDomyślnie (konfigurowalne) stany wyjść po włączeniu zasilaniaMaximum current 3A 250V AC / per COM (..
606,30 zł
MOD-6RO - Industrial expansion module, 6 relay outputs on Modbus RTU, with RS485 interface MOD-6RO - Industrial expansion module, 6 relay outputs on Modbus RTU, with RS485 interface
2-3 days
Brand: Aspar Model: MOD-6RO
Industrial expansion module, 6 relay outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 6 relay outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Default configurable output states when power is turned onOutputs both NO and NC typeMaximum current 5A 250V ACMaxim..
606,30 zł
MOD-8I8O - Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface MOD-8I8O - Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface
2-3 days
Brand: Aspar Model: MOD-8I8O
Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface. Cechy:INPUT / OUTPUT: 8 digital inputs, 8 PNP outputsOUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN rail8 configurable 32-bit countersCounter modes: p..
606,30 zł
MOD-8I8RO - Industrial expansion module, 8 digital inputs and 8 relay outputs on Modbus RTU, with RS485 interface MOD-8I8RO - Industrial expansion module, 8 digital inputs and 8 relay outputs on Modbus RTU, with RS485 interface
2-3 days
Brand: Aspar Model: MOD-8I8RO
Industrial expansion module, 8 digital inputs and 8 relay outputs on Modbus RTU, with RS485 interface.Features:INPUT / OUTPUT: 8 digital inputs, 8 relay outputsOUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN rail8 configurable 32-bit countersAbility t..
606,30 zł
MOD-8TR - Industrial expansion module, 8 triac outputs with maximum current up to 0 MOD-8TR - Industrial expansion module, 8 triac outputs with maximum current up to 0
2-3 days
Brand: Aspar Model: MOD-8TR
Industrial expansion module, 8 triac outputs with maximum current up to 0.5A per channel and 400V to Modbus RTU with RS485 interface. Features:OUTPUT: 8 triac outputs with maximum current up to 0.5A per channel and 400VINPUT: RS485 - Modbus Slave (ASCII, RTU)Default (co..
606,30 zł
tET-P2POR2 CR - Tiny Ethernet module with 2 Digital Inputs (Dry Contact) and 2 Form A PhotoMos relay
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tET-P2POR2 CR
Tiny Ethernet module with 2 Digital Inputs (Dry 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 Etherne..
606,30 zł
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