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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.


HD674-A008-2-E4V - Modbus Master to SNMP Agent converter, metal enclosure, 4kV isolation, Mini-Fit®/Superseal 1.5 connectors
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A008-2-E4V
Industrial isolated Modbus Master to SNMP Agent Converter, metal housing resistant to vibration and shock with triple 4kV isolation between Modbus Master/SNMP Agent, Modbus Master/power supply and SNMP Agent/power supply. The HD674-A008-2-E4V converter is a r..
1 804,80 zł
HD674-A008-4-E4V - Modbus RS485 to SNMP Agent converter, metal enclosure, 4kV isolation, Mini-Fit®/Superseal 1.5 connectors
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A008-4-E4V
Industrial isolated Modbus Master to SNMP Agent Converter, metal housing resistant to vibration and shock with triple 4kV isolation between Modbus Master/SNMP Agent, Modbus Master/power supply and SNMP Agent/power supply. The HD674-A008-4-E4V is a high-reliab..
1 804,80 zł
HD674-A009-2-E4V - Modbus RTU slave to SNMP agent converter, RS-232, metal housing, triple isolation 4kV
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A009-2-E4V
Industrial isolated Modbus Slave to SNMP Agent converter with 4kV triple isolation and vibration-resistant metal housing. The HD674-A009-2-E4V is a rugged industrial-grade protocol converter designed to bridge communication between a Modbus RTU Slave device..
1 804,80 zł
HD674-A009-4-E4V  - Modbus Slave to SNMP Agent converter, metal enclosure, 4kV insulated, Mini-Fit/Superseal 1.5 connector
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A009-4-E4V
HD674-A009-4-E4V – Industrial Modbus Slave to SNMP Agent Converter with reinforced 4kV isolation and ruggedized housing. The HD674-A009-4-E4V is a highly reliable Modbus RTU Slave to SNMP Agent converter designed for harsh industrial and automotive environm..
1 804,80 zł
HD674-A031-E4V HD674-A031-E4V
2 year warranty 3-4 days
Brand: ADF Web Model: HD674-A031-E4V
Industrial CAN to CANopen converter, metal housing resistant to vibration and shock with triple 4kV isolation between CAN/CANopen, CAN/power supply and CANopen/power supply. Particularly suitable for installation in cars, trucks, trains, boats, in the industrial sector ..
1 804,80 zł
HD67401-E4R
2 year warranty 3-4 days
Brand: ADF Web Model: HD67401-E4R
Industrial isolated CAN Repeater, line extender. Metal housing resistant to vibration and shock with triple 4kV isolation between CAN ports and CAN/power supply, IP67. Repeater HD67401-E4R gives to the high performance safety and insulation for wet environments (IP67) a..
1 804,80 zł
HD67402-E4R
2 year warranty 3-4 days
Brand: ADF Web Model: HD67402-E4R
Industrial isolated CAN Repeater, line extender. Metal housing resistant to vibration and shock with triple 4kV isolation between CANopen ports and CANopen/power supply, IP67, Mini-Fit Connectors.Repeater HD67402-E4R gives to the high performance safety and insulation f..
1 804,80 zł
HD67403-E4R
2 year warranty 3-4 days
Brand: ADF Web Model: HD67403-E4R
Industrial isolated DeviceNet Repeater, line extender. Metal housing resistant to vibration and shock with triple 4kV isolation between DeviceNet ports and Devicenet/power supply, IP67. Repeater HD67403-E4R gives to the high performance safety and insulation for wet env..
1 804,80 zł
HD67404-E4R
2 year warranty 3-4 days
Brand: ADF Web Model: HD67404-E4R
Industrial isolated J1939 and NMEA 2000 Repeater, line extender. Metal housing resistant to vibration and shock with triple 4kV isolation between J1939/NMEA2000, J1939/power supply and NMEA2000/power supply, IP67. Repeater HD67404-E4R gives to the high performance safet..
1 804,80 zł
HD67561– PROFIBUS slave to Modbus RTU master converter, DPV0, DIN rail mount, up to 115 Kbps serial speed, housing type: A HD67561– PROFIBUS slave to Modbus RTU master converter, DPV0, DIN rail mount, up to 115 Kbps serial speed, housing type: A
2 year warranty 3-4 days
Brand: ADF Web Model: HD67561
Industrial PROFIBUS slave to Modbus RTU master converter, PROFIBUS DP DPV0 support, housing type: A (slim), DIN rail mount. The HD67561 converter is an advanced industrial communication gateway designed to connect Modbus RTU slave devices to PROFIBUS DP maste..
1 804,80 zł
HD67562 – PROFIBUS DP slave to Modbus RTU slave converter, DPV0, up to 115 Kbps, DIN rail mount, housing type A HD67562 – PROFIBUS DP slave to Modbus RTU slave converter, DPV0, up to 115 Kbps, DIN rail mount, housing type A
2 year warranty 3-4 days
Brand: ADF Web Model: HD67562
Industrial PROFIBUS slave to Modbus RTU slave converter, PROFIBUS DP DPV0 support, housing type A (slim), DIN rail mount. The HD67562 is a reliable industrial gateway that enables seamless integration between a Modbus RTU master network and a PROFIBUS DP mast..
1 804,80 zł
HD67575-A1
2 year warranty 3-4 days
Brand: ADF Web Model: HD67575-A1
Industrial PROFIBUS master to Ethernet converter, PROFIBUS DP DPV0 support, housing type A (slim), DIN rail mount. HD67575-A1 allows to connect PROFIBUS slaves with Ethernet devices (for example PC or supervisory system) to exchange the informations between the nets. Co..
1 804,80 zł
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