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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.


HD67C04-5-G43-E-B2 Modbus Master and MQTT Broker with LAN, LTE SIM and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C04-5-G43-E-B2
HD67C04-5-G43-E-B2 – Industrial Modbus Master and MQTT Broker Converter with LAN, LTE SIM and eSIM. The HD67C04-5-G43-E-B2 is a powerful industrial protocol converter that combines Modbus RTU communication with modern MQTT technology, enhanced with both LTE SIM and integrated eSIM for maximum communication redundancy. Engineered in a robust type B housing with DIN rail mounting, this converter is designed for demanding automation, ..
2 166,70 zł
HD67C04-5-G43-E-VPN-B2 Modbus Master and MQTT Broker with LAN, LTE, eSIM and VPN – Industrial Communication Converter
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C04-5-G43-E-VPN-B2
HD67C04-5-G43-E-VPN-B2 – Industrial Modbus Master and MQTT Broker with LAN, LTE, eSIM and VPN. The HD67C04-5-G43-E-VPN-B2 is an advanced industrial communication converter designed to connect Modbus RTU field networks with modern MQTT-based cloud, SCADA and IoT systems. Equipped with LTE SIM, an integrated eSIM module and a secure VPN service, this device is engineered for applications requiring continuous, redundant and encrypted c..
2 166,70 zł
HD67C05-2-G43-E-B2 Industrial Modbus Slave and MQTT Broker Converter with LAN, LTE and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C05-2-G43-E-B2
HD67C05-2-G43-E-B2 – Industrial Modbus Slave and MQTT Broker Converter with LAN, LTE and eSIM. The HD67C05-2-G43-E-B2 is a high-performance industrial communication converter designed to connect Modbus RTU Slave networks with modern MQTT infrastructures used in IoT, SCADA, remote monitoring and building automation systems. The device is equipped with LTE connectivity and an integrated eSIM module, providing dual mobile communication..
2 166,70 zł
HD67C05-2-G43-E-VPN-B2 Industrial Modbus Slave and MQTT Broker Converter with LTE, eSIM and VPN
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C05-2-G43-E-VPN-B2
HD67C05-2-G43-E-VPN-B2 – Industrial Modbus Slave and MQTT Broker Converter with LAN, LTE, eSIM and VPN. The HD67C05-2-G43-E-VPN-B2 is an advanced industrial converter that integrates Modbus RTU in Slave mode with a fully featured MQTT Broker and secure VPN communication. With triple connectivity – Ethernet, LTE (SIM) and an embedded eSIM – the device ensures redundant, reliable and encrypted communication for industrial automation, ..
2 166,70 zł
HD67C05-5-G43-E-B2 industrial Modbus Slave and MQTT Broker converter with LAN, LTE SIM and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C05-5-G43-E-B2
HD67C05-5-G43-E-B2 – Modbus Slave and MQTT Broker Converter with LAN, LTE SIM and eSIM. The HD67C05-5-G43-E-B2 is a high-performance industrial protocol converter that combines a Modbus Slave interface with a fully integrated MQTT Broker. With three independent communication paths – Ethernet LAN, LTE SIM and embedded eSIM – the device ensures maximum connectivity redundancy, making it ideal for remote installations, IoT platforms, SC..
2 166,70 zł
HD67C05-5-G43-E-VPN-B2 industrial Modbus Slave to MQTT Broker converter with LTE, eSIM and VPN
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C05-5-G43-E-VPN-B2
HD67C05-5-G43-E-VPN-B2 – Modbus Slave / MQTT Broker with LTE, eSIM and VPN Service The HD67C05-5-G43-E-VPN-B2 is a high-performance industrial converter that combines Modbus Slave communication with a complete MQTT Broker engine. Equipped with LTE SIM, integrated eSIM and a secure VPN service, the device ensures safe, reliable and continuous data transmission in distributed automation, telemetry and IoT environments. With Ethe..
2 166,70 zł
HD67C06-G43-E-B2 Industrial Modbus TCP Master and MQTT Broker Converter with LTE SIM and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C06-G43-E-B2
HD67C06-G43-E-B2 – Industrial Modbus TCP Master and MQTT Broker with LTE SIM and eSIM. The HD67C06-G43-E-B2 is a high-performance industrial converter designed to integrate Modbus TCP Master systems with modern MQTT Broker infrastructures. It combines Ethernet communication with both a physical LTE SIM slot and an embedded eSIM module, ensuring continuous and redundant connectivity for remote, distributed or mission-critical automati..
2 166,70 zł
HD67C06-G43-E-VPN-B2 Industrial Modbus TCP Master / MQTT Broker with LTE, eSIM and VPN
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C06-G43-E-VPN-B2
HD67C06-G43-E-VPN-B2 – Modbus TCP Master and MQTT Broker with LTE, eSIM and VPN. HD67C06-G43-E-VPN-B2 is an advanced industrial communication gateway that integrates Modbus TCP Master functionality with a fully embedded MQTT Broker. Designed for secure IIoT and SCADA architectures, it includes both LTE SIM, built-in eSIM and a VPN service, ensuring encrypted communication between automation networks, cloud platforms and remote supe..
2 166,70 zł
HD67C07-G43-E-B2 – Modbus TCP Slave / MQTT Broker Converter with LAN, LTE SIM and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C07-G43-E-B2
HD67C07-G43-E-B2 – Modbus TCP Slave / MQTT Broker Converter with LAN, LTE SIM and eSIM. HD67C07-G43-E-B2 is an industrial communication gateway designed to connect Modbus TCP Slave devices with modern MQTT Broker infrastructures. This enhanced version features both LTE SIM and embedded eSIM, providing redundant, flexible and reliable data transmission for distributed automation systems, IoT platforms and cloud-based monitoring. Its ..
2 166,70 zł
HD67C07-G43-E-VPN-B2 – Industrial Modbus TCP Slave / MQTT Broker Converter with LTE, eSIM and VPN
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C07-G43-E-VPN-B2
HD67C07-G43-E-VPN-B2 – Modbus TCP Slave / MQTT Broker Converter with LTE, eSIM and VPN. HD67C07-G43-E-VPN-B2 is an advanced industrial communication converter that combines Modbus TCP Slave functionality with a fully integrated MQTT Broker. Equipped with LTE connectivity, a physical SIM slot, a built-in eSIM module and a secure VPN service, the device ensures reliable and encrypted data transmission between automation networks, clo..
2 166,70 zł
HD67C08-IP-G43-E-B2 – BACnet IP Master to MQTT Broker converter with LTE and eSIM
New 2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67C08-IP-G43-E-B2
The HD67C08-IP-G43-E-B2 is an industrial converter that integrates a BACnet IP Master interface with a fully featured MQTT Broker, providing seamless data exchange between building automation systems and modern IoT platforms. The G43-E variant includes an LTE module with both a physical SIM card slot and integrated eSIM, ensuring reliable connectivity even in remote or infrastructure-limited locations. The converter supports 10/10..
2 166,70 zł
PET-7019 CR PET-7019 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7019 CR
Ethernet I/O Module with 1 Ethernet PoE port, 8 Universal Analog Inputs and 4 Digital Outputs. The ET-7019/PET-7019 features an extremely excellent protection mechanism where overvoltage protection is up to 240 Vrms. It has wider input range for voltage compared to ET-7017. ET-7019/PET-7019 measures voltage from +/-15 mV ~ +/-10 V. Its input type also includes current and thermocouple. An intuitive design is built in this model, measuring current..
2 176,10 zł
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