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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.


INBACRTR0320000 – BACnet MS/TP to BACnet IP Router
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: INBACRTR0320000
INBACRTR0320000 – Industrial BACnet MS/TP to BACnet IP Router.  The INBACRTR0320000 BACnet router enables seamless integration between BACnet MS/TP and BACnet IP devices within building automation and BMS environments. This compact and powerful device from Intesis offers certified BACnet routing with advanced diagnostics and network tools. Designed to simplify integration tasks, the router ensures that BACnet devices, objects, and service..
1,645.00 zł
Modbus RTU master to MQTT converter, 1x RS-232, DIN rail mounting Modbus RTU master to MQTT converter, 1x RS-232, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67933-2-G43-B2
Industrial Modbus master to MQTT converter, housing type B (wide), DIN rail mounting, RS232 port, LAN + SIM LTE The HD67933-2-G43-B2 allows the integration of Modbus networks into the IoT world based on the MQTT network. It also allows data read from Modbus slaves to be published to an MQTT server. This gateway allows quick and easy access to the IoT world and is compatible with IoT servers that support the MQTT protocol. MQTT communication..
1,649.23 zł
Modbus RTU master to MQTT converter, 1x RS-232, SuperSeal, mounting brackets, varnished PCB coating
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD674-A036-2-E7V
Industrial Modbus master to MQTT converter, E-type housing (robust and rugged), RS232 port, SuperSeal 1.5 connector, 4KV triple insulation, painted shell The HD674-A036-2 allows the integration of the Modbus network into the IoT world based on the MQTT network. It also allows data read from Modbus slaves to be published to an MQTT server. This gateway allows quick and easy access to the IoT world and is compatible with IoT servers that supp..
1,649.23 zł
Modbus RTU master to MQTT converter, 1x RS-485, DIN rail mounting Modbus RTU master to MQTT converter, 1x RS-485, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67933-5-G43-B2
Industrial Modbus master to MQTT converter, housing type B (wide), DIN rail mounting, RS485 port, LAN + SIM LTE The HD67933-5-G43-B2 allows the integration of Modbus networks into the IoT world based on the MQTT network. It also allows data read from Modbus slaves to be published to an MQTT server. This gateway allows quick and easy access to the IoT world and is compatible with IoT servers that support the MQTT protocol. MQTT communication..
1,649.23 zł
Modbus RTU master to MQTT converter, 1x RS-485, SuperSeal, mounting brackets, varnished PCB coating
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD674-A036-4-E7V
Industrial Modbus master to MQTT converter, E-type housing (robust and rugged), RS485 port, SuperSeal 1.5 connector, 4KV triple insulation, painted shell The HD674-A036-4 allows the integration of the Modbus network into the IoT world based on the MQTT network. It also allows data read from Modbus slaves to be published to an MQTT server. This gateway allows quick and easy access to the IoT world and is compatible with IoT servers that supp..
1,649.23 zł
Modbus RTU Slave to MQTT converter, 1x RS-232, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67934-2-G43-B2
Industrial Modbus slave to MQTT converter, type B housing (robust and rugged), DIN rail mounting, RS232 port, LAN + SIM LTE The HD67934-2-G43-B2 allows the integration of Modbus networks into the IoT world based on the MQTT network. It also allows data to be published and downloaded to/from an MQTT server via a Modbus master protocol (such as PLC, SCADA, etc.). It also supports the SNIFFER function to get data from an existing Modbus network. ..
1,649.23 zł
Modbus RTU Slave to MQTT converter, 1x RS-485, DIN rail mounting
2 year warranty Quantity discount 3-4 days
Brand: ADF Web Model: HD67934-5-G43-B2
Industrial Modbus slave to MQTT converter, housing type B (wide), DIN rail mounting, RS485 port, LAN + SIM LTE The HD67934-5-G43-B2 allows the integration of Modbus networks into the IoT world based on the MQTT network. It also allows data to be published and downloaded to/from an MQTT server via a Modbus master protocol (such as PLC, SCADA, etc.). It also supports the SNIFFER function to get data from an existing Modbus network. This gatew..
1,649.23 zł
CAN-2017C CR CAN-2017C CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: CAN-2017C CR
CANopen Slave Module with 8 Differential Analog Inputs. CANopen is one kind of the network protocols based on the CAN bus and mainly used for embedded network system, such as industrial machine control , vehicle control system, factory automation, medical equipment control, remote data acquisition, environmental monitoring, and packaging machines control, etc.The CAN-2017C module follows the CiA DS-301 version 4.02 and DSP-401 version 2.1. It is ..
1,649.70 zł
CAN-2017D CR CAN-2017D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: CAN-2017D CR
DeviceNet Slave Industrial module with 8-channel Differential Analog Input. The CAN-2017D follows DeviceNet specification Volume I/II, Release 2.0. User can access the analog input status and set the configuration via DeviceNet EDS file. CAN-2017D has 8-channel analog input and it can be used to various applications. By the DeviceNet masters of ICP DAS, you can quickly build a DeviceNet network to approach your requirements.Features:8-channel 16-..
1,649.70 zł
ECAT-2511-A CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: ECAT-2511-A CR
EtherCAT Single-Strand Media Converter, TX 1310 nm, RX 1550 nm, SC connector. The ECAT-2511-A and ECAT-2511-B are EtherCAT to single-mode fiber optic converter. They are designed not only to convert EtherCAT signals to optical signals on a fiber optic cable, to reshape the EtherCAT signal to compensate for distortion, but to isolate the bus error due to the wire short or disturbance. With the advantage of fiber optic, the ECAT-2511-A and ECAT-251..
1,649.70 zł
ECAT-2511-B CR ECAT-2511-B CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: ECAT-2511-B CR
EtherCAT Single-Strand Media Converter, TX 1550 nm, RX 1310 nm, SC connector. The ECAT-2511-A and ECAT-2511-B are EtherCAT to single-mode fiber optic converter. They are designed not only to convert EtherCAT signals to optical signals on a fiber optic cable, to reshape the EtherCAT signal to compensate for distortion, but to isolate the bus error due to the wire short or disturbance. With the advantage of fiber optic, the ECAT-2511-A and ECAT-251..
1,649.70 zł
ET-7224 CR ET-7224 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: ET-7224 CR
Ethernet I/O Module with 2 Ethernet Ports, 4 Analog Outputs, 5 Digital Inputs and 5 Digital Outputs. The ET-7024/PET-7024/ET-7224/PET-7224 is a multifunction module includes 4 channels analog output, 5 channels digital input and 5 channels digital output. It provides a variety of programmable analog output options (+/-5 V, +/-10 V, 0 ~ 20 mA and 4 ~ 20 mA), and each analog output can be programmed to accept either current or voltage as output dep..
1,649.70 zł
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