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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.


GW1114-4DI(RS-485) - 4x RS-485 + 2x 100M Ethernet Ports Modbus Gateway GW1114-4DI(RS-485) - 4x RS-485 + 2x 100M Ethernet Ports Modbus Gateway
Shipping 24h Test for Free! 6 year warranty
Brand: 3onedata Model: GW1114-4DI(RS-485)
4 RS-485 + 2 100M Ethernet Ports Modbus Gateway GW1114-4DI(RS-485)-TB-P(12-48VDC) is Modbus gateway designed for integrating Modbus RTU/ASCII and Modbus TCP networks; it can achieve the conversion between Modbus RTU/ASCII and Modbus TCP protocols. This product supports ..
1 607,40 zł
I-7530A-MR CR I-7530A-MR CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7530A-MR CR
Industrial Intelligent Modbus RTU to CAN Converter. The I-7530A-MR is designed to unleash the power of CAN bus via RS-232/485/422 communication method. It accurately converts messages between CAN and RS-232/485/422 networks. This module let you communicate with CAN devi..
1 607,40 zł
HD67045 - Industrial PROFIBUS to RS232 or RS485 converter HD67045 - Industrial PROFIBUS to RS232 or RS485 converter
2 year warranty -11 % 3-4 days
Brand: ADF Web Model: HD67045
Industrial PROFIBUS to RS232 or RS485 converter, PROFIBUS DP DPV0 support, housing type A (slim), DIN rail mount. HD67045 allows to connect PROFIBUS masters with serial devices like barcode readers, industrial scales, cash registers etc. Converter is easy to install and..
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PET-7002 CR
Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7002 CR
Ethernet I/O Module with 1 Ethernet PoE port, 3-ch Analog Inputs, 6-ch Digital Inputs and 3-ch Relay. The ET-7002/PET-7002/ET-7202/PET-7202 is a multi-function module with 3-channel analog inputs, 6-channel digital inputs and 3-channel relay outputs. It provides various..
1 612,10 zł
PET-7217-10 CR PET-7217-10 CR
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 anal..
1 612,10 zł
GW1114-4D(3IN1) - Modbus Gateway with 4x RS-232/422/485 ports and 2x Ethernet ports
6 year warranty 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 ..
1 621,50 zł
I-7527 CR I-7527 CR
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 th..
1 621,50 zł
Industrial M-Bus master for up to 60 meters with LCD display and keypad – MR004W
New 5-10 days
Brand: Relay Model: MR004W
MR004W – industrial M-Bus master with LCD display for up to 60 meters.MR004W is an industrial M-Bus master designed for remote powering and reading of up to 60 M-Bus devices, such as water, heat, electricity and gas meters. As a member of the W60 Master..
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PFN-2042 CR PFN-2042 CR
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 ea..
1 621,50 zł
PFN-2051 CR PFN-2051 CR
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 eas..
1 621,50 zł
PFN-2053 CR
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 Ente..
1 621,50 zł
PFN-2055 CR PFN-2055 CR
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..
1 621,50 zł
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