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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.


PET-7217-10 CR PET-7217-10 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7217-10 CR
Ethernet PoE I/O Industrial Module with 2 Ethernet PoE Ports and 10/20-ch Analog Inputs. The ET-7017-10/PET-7017-10/ET-7217-10/PET-7217-10 is a module with 10-channel differential or 20-channel single-ended analog inputs. It provides programmable input range on all analog channels (+/-150 mV, +/-500 mV, +/-1 V, +/-5 V, +/-10 V, +/-20 mA, 0 ~ 20 mA and 4 ~ 20 mA). Each analog channel is allowed to configure an individual range and has 240 Vrms hig..
1 612,10 zł
GW1114-4D(3IN1)
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: GW1114-4D(3IN1)
Industrial Serial to Modbus Gateway with 4x RS-232/422/485 ports and 2x Ethernet ports, wide temperature range, metal housing with IP30 protection. GW1114-4D(3IN1) is a serial-to-Ethernet Modbus gateway that convert between Modbus TCP and Modbus RTU/ASCII protocols. It supports 4 RS-232/485/422 serial ports (RJ45) and 2 10/100Base-T(X) Ethernet ports interface optional. Modbus TCP, Modbus RTU and Modbus ASCII protocol are integrated in the produc..
1 621,50 zł
I-7527 CR I-7527 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7527 CR
Programmable Intelligent Communication Controller. 1x 5-wire RS-232 or 2-wire RS-485, 6 RS-232 ports and 1 RS-485 port. Onboard 1 KB Queue bufferThe I-752N series module is equipped with a 1 KB queue buffer for its local RS-232 device. All input data can be stored in the queue buffer until the Host PC has time to read it. This feature allows the Host PC to link thousands of RS-232 devices without any loss of data.3000V isolation on RS-485 sideCOM..
1 621,50 zł
PFN-2042 CR PFN-2042 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PFN-2042 CR
PROFINET I/O Industrial Module with 16 Isolated Digital Outputs. PROFINET is an open Industrial Ethernet standard developed by the PROFIBUS Organization (PI). Based on the versatility of Ethernet, PROFINET makes vertical integration of field level to Enterprise level easily. PROFINET has good performance in real-time and stability for communication, so it can cover all requirements of the Automation Industry. PROFINET is perfect for factory autom..
1 621,50 zł
PFN-2051 CR PFN-2051 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PFN-2051 CR
PROFINET I/O Industrial Module with 16 Isolated Digital Inputs. PROFINET is an open Industrial Ethernet standard developed by the PROFIBUS Organization (PI). Based on the versatility of Ethernet, PROFINET makes vertical integration of field level to Enterprise level easily. PROFINET has good performance in real-time and stability for communication, so it can cover all requirements of the Automation Industry. PROFINET is perfect for factory automa..
1 621,50 zł
PFN-2053 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PFN-2053 CR
PROFINET I/O Industrial Module with 16 Dry contact Non-Isolated Digital Inputs. PROFINET is an open Industrial Ethernet standard developed by the PROFIBUS Organization (PI). Based on the versatility of Ethernet, PROFINET makes vertical integration of field level to Enterprise level easily. PROFINET has good performance in real-time and stability for communication, so it can cover all requirements of the Automation Industry. PROFINET is perfect fo..
1 621,50 zł
PFN-2055 CR PFN-2055 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PFN-2055 CR
PROFINET I/O Industrial Module with 8 Isolated Digital Inputs and 8 Digital Outputs. PROFINET is an open Industrial Ethernet standard developed by the PROFIBUS Organization (PI). Based on the versatility of Ethernet, PROFINET makes vertical integration of field level to Enterprise level easily. PROFINET has good performance in real-time and stability for communication, so it can cover all requirements of the Automation Industry. PROFINET is perfe..
1 621,50 zł
M-7015P CR M-7015P CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7015P CR
6-channel RTD Input Industrial Module with 3-wire Lead Resistance Elimination using the DCON and Modbus Protocols. The I-7015 is a series of 6-channel RTD input modules that are used for measuring temperatures using RTD sensors and each channel can be connected to a different type of sensor. The I-7015P/M-7015P is specifically designed for long-distance RTD measurement, and features automatic compensation for three-wire RTD, meaning that accurate..
1 630,90 zł
ET-7018Z/S2 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: ET-7018Z/S2 CR
Ethernet I/O Industrial Module with 1 Ethernet Port, 10 Thermocouple Inputs and 6 Digital Outputs. The ET-7018Z/PET-7018Z/ET-7218Z/PET-7218Z is specifically designed for extremely accurate thermocouple measurement and features automatic coldjunction compensation for each channel to ensure temperature output consistency and stable temperature output in the field. Current input and voltage input are both supported. Another feature is that its ten ..
1 640,30 zł
PET-7018Z/S CR PET-7018Z/S CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7018Z/S CR
Ethernet PoE I/O Module with 1 Ethernet PoE Port, 10-channels Thermocouple Inputs and 6-channels Digital Outputs. The ET-7018Z/PET-7018Z/ET-7218Z/PET-7218Z is specifically designed for extremely accurate thermocouple measurement and features automatic coldjunction compensation for each channel to ensure temperature output consistency and stable temperature output in the field. Current input and voltage input are both supported. Another feature is..
1 640,30 zł
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
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