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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.


M-7041D CR M-7041D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7041D CR
14-channel Isolated Digital Input Module with DCON and Modbus Protocols and LED Display.The I-7041 and I-7041P provide 14 channels for digital input, each of which features photocouple isolation. In addition, either sink- or source-type digital input can be selected via wire connections, and all channels are able to be used as 16-bit counters. The I-7041D and I-7041PD include 14 LED indicators that can be used for DI channel status monitoring. 4 ..
690.90 zł
M-7041D-A5 CR M-7041D-A5 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7041D-A5 CR
14-channel High Voltage Isolated Digital Input Module with DCON and Modbus Protocols and with LED Display.The M-7041(D)-A5 provides 14 channels for high voltage digital input, each of which features photocouple isolation. The input voltage level could be as high as 150V. In addition, either sink- or source-type digital input can be selected via wire connections, and all channels are able to be used as 16- bit counters. The M-7041D-A5 has 14 LED i..
690.90 zł
M-7043D CR M-7043D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7043D CR
16-channel Non-isolated Digital Output Module using the DCON and Modbus Protocols with LED Display. The I-7043 offers 16 digital output channels, each of which are non-isolated and support sink-type output using an open collector. There are also options to enable both power-on and safe values. The I-7043D has 16 LED indicators that can be used to monitor the status of DO channels. The hardware specifications for the M-7043 are the same as the I-7..
690.90 zł
M-7053D CR M-7053D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7053D-G CR
16-channel Non-isolated Digital Input Module using the DCON and Modbus Protocols with LED Display. The I-7053_FG features a long effective distance measurement for dry contact digital input of up to 500 meters. The I-7053_FG supports source-type input. All 16 channels are also able to be used as 16-bit counters, each of which are non-isolated. The I-7053D_FG has 16 LED indicators for channel status monitoring. The M-7053 has the same hardware spe..
690.90 zł
M-7058 CR M-7058 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7058 CR
8-channel Isolated AC/DC Digital Input Module using the DCON and Modbus Protocol. The I-7058/I-7059 module offers 8 differential channels for AC/DC Digital Input, each of which features channel-to-channel Photocouple isolation. All DI channels are also able to be used as 16-bit counters. The I-7058D/I-7059D module has 8 LED indicators fthat can be used to monitor the status of the DI channels. ESD protection of ±4 kV and 3750 VDC intra-module iso..
690.90 zł
M-7065D CR M-7065D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7065D CR
4-channel Isolated Digital Input and 5-channel Relay Output Module using DCON and Modbus Protocols with LED Display. The I-7063 module provides 8 digital input channels and 3 Form A relay output channels, and the 7065 series provides 4 digital input channels and 5 Form A relay output channels. All digital input channels can be used as 16-bit counters. In addition, the digital input channels can be selected either as sink- or source-type via wire ..
690.90 zł
I-7520U4 CR I-7520U4 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-7520U4 CR
Industrial Isolated RS-232 to 4 Channels RS-485 Active Hub. RS-485 Active HubThe I-7520U4 is isolated RS-232 to 4-ch RS-485 active star wiring hub, it has 4 independent RS-485 output channels and one RS-232 input channel. Each output channel is equipped with an individual driver. The data from a master to the input channel will simultaneously be forwarded to all the four output channels.Baud Rate SettingThe I-7520U4 provides 2 modes of baud rate ..
700.30 zł
M-7064D CR M-7064D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7064D CR
8-channel Form A Signal Relay Output Module with LED Display. The M-7064 module provides 8 Form A signal relay output channels. The M-7064D module include 8 LED indicators that can be used to monitor the status of the relay output, and options are provided that allow power-on and safe Relay Output values to be configured. 8 kV ESD, 4 kV EFT and 3 kV surge protection are also provided to enhance noise protection capabilities in industrial environm..
700.30 zł
M-7068D CR M-7068D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7068D CR
4-channel Form A Signal Relay Output and 4-channel Form C Signal Relay Output Module with LED Display. The M-7068 provides 4 Form A signal relay output channels and 4 Form C signal relay output channels, while the M-7069 provides 4 Form A power relay output channels and 4 Form C power relay output channels. Both include 8 LED indicators that can be used to monitor the relay output status, and options are provided that allow power-on and safe digi..
700.30 zł
tGW-724 CR tGW-724 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tGW-724 CR
Industrial Modbus TCP to RTU/ASCII Converter with PoE, 1 RS-485 Port and 1 RS-232 Port. The tGW-700 is a Modbus TCP to RTU/ASCII gateway that enables a Modbus/TCP host to communicate with serial Modbus RTU/ASCII devices through an Ethernet network, and eliminates the cable length limitation of legacy serial communication devices. The module can be used to create a pair-connection application (as well as serial-bridge or serial-tunnel application)..
700.30 zł
tM-7521 CR tM-7521 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-7521 CR
Tiny addressable serial converter, PoE and 1 RS-232 Port and 1 RS-485 Port. Easy Configuration (DCON & Web)The tM-752N series supports the DCON protocol (compatible with I-752N series), allowing users to modify the settings of the module, such as the serial port configuration and the operation mode, etc. The module also has a built-in web server which provides an intuitive web management interface that simplifies the configuration of the modu..
700.30 zł
tM-AD4P2C2 CR tM-AD4P2C2 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: tM-AD4P2C2 CR
4-Channel Isolated Analog Input and 2-channel Isolated Digital Input and 2-channel Isolated Digital Output Module. The tM-AD4P2C2 is a multifunction module that includes 4 analog input channels, 2 digital input channels and 2 digital output channels. The module provides a programmable analog input range that includes 2 voltage input channels (±1 V, ±2.5 V, ±5 V, and ±10 V) and 2 current input channels (±20 mA, 0 ~ 20 mA and 4 ~ 20 mA). The analog..
700.30 zł
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