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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-7017 CR M-7017 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: M-7017 CR
8-channel Analog Input Module using the DCON and Modbus Protocols. The I-7017 and I-7017F are analog input modules that provide either 8 differential input channels, or 6 differential input channels and 2 singleended input channels selectable via a jumper. The input type includes both voltage and current, and all channels are available for the same input range. An optional external 125 Ω resistor is required for current input. The modules also fe..
1,254.90 zł
PET-7251 CR PET-7251 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7251 CR
Ethernet PoE I/O Module with 2 Ethernet PoE Ports and 16 Digital Inputs. The ET-7051/PET-7051/ET-7251/PET-7251 provides 16 wet contact digital input channels. Each input channel can be used as a 32-bit counter. It features optical isolation for 3750 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present.Features:Built-In WebserverWeb HMI..
1,254.90 zł
PET-7253 CR PET-7253 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7253 CR
Ethernet I/O Module with 2 Ethernet PoE Ports and 16-ch Digital Inputs. The ET-7053/PET-7053/ET-7253/PET-7253 provides 16 dry contact digital input channels. Each input channel can be used as a 32-bit counter. It features optical isolation for 3750 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present.Features:Built-In Webserver: config..
1,254.90 zł
PET-7259 CR PET-7259 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7259 CR
Ethernet PoE I/O Module with 2 Ethernet PoE Ports and 8 AC/DC Digital Inputs. The ET-7259/PET-7259 provides 8 AC digital input channels. Each input channel can be used as a 32-bit counter. It features optical isolation for 2500 VDC of transient overvoltage protection but doesn’t provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present.Features:Built-In WebserverWeb HMISupport for both Modbus..
1,254.90 zł
PET-7260 CR PET-7260 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7260 CR
Ethernet PoE I/O Module with 2 Ethernet PoE Ports, 6 Relay Outputs and 6 Digital Inputs. The ET-7060/PET-7060/ET-7260/PET-7260 provides 6 wet contact digital input channels and 6 form A electromechanical relays. It features optical isolation for 3000 VDC of transient overvoltage protection and doesn’t have channel-to-channel isolation. Each input channel can be used as a 32-bit counter. The power-on value and safe value of relay are programmable...
1,254.90 zł
PROFI-5055 CR PROFI-5055 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PROFI-5055 CR
PROFIBUS Remote I/O Module with 8 Isolated Digital Inputs and 8 Isolated Digital Outputs. The PROFI-5055 is one of the PROFIBUS DP series products produced by ICP DAS. It provides the PROFIBUS DP communication protocol with any DP-Masters. The PROFI-5055 provides ±4KV ESD protection contacting for all terminals (include I/O Terminals and PROFIBUS connector). By applying the PROFI-5055, users can easily establish a PROFIBUS DP network with other D..
1,254.90 zł
IES615-1F-2D(RS-232)
6 year warranty Quantity discount 5-10 days
Brand: 3onedata Model: IES615-1F-2D(RS-232)
Industrial Ethernet Switch with 4 10/100Mbps ports, 1 Fiber port and 2 RS-232 ports. IES615-1F-2D (RS-232) is an industrial Ethernet switch with 4 10/100Mbps ports, 1 Fiber port and 2 RS-232 ports. It has integrated serial server functionality and redundant SW-Ring technology (recovery time <20ms). Users can easily set up redundancy to increase network reliability. In addition, the IES615-1F-2D supports the AT command board and 1 relay alarm o..
1,259.60 zł
PET-7083 CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: PET-7083 CR
Ethernet I/O Module with 1 Ethernet PoE port and 3 Encoder/Counter Inputs. The ET-7083/PET-7083 is a 3-axis high speed encoder/counter module. Its each axis can be individually configured for Quadrant, Pulse/Direction or CW/CCW counting modes. The maximum input rate for Quadrant counting mode is 1 MHz, and for Pulse/Direction, CW/CCW counting modes is 4 MHz.The encoder/counter module is equipped a FRAM to retain the counter value after it is powe..
1,259.60 zł
CAN-2088C CR CAN-2088C CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: CAN-2088C CR
CANopen Slave Module with 8 PWM and 8 Digital Inputs with High-Speed Counters. PWM (Pulse width modulation) is a powerful technique for controlling analog circuits. It uses digital outputs to generate a waveform with variant duty cycle and frequency to control analog circuits. CAN-2088C is a PWM slave module of CANopen protocol. It has 8 PWM output channels and 8 high speed counter channels. It can be used to develop powerful and cost effective a..
1,264.30 zł
CAN-2088D CR CAN-2088D CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: CAN-2088D CR
DeviceNet Slave Module with 8-channel PWM and 8-channel Digital Input with High-Speed Counters. PWM (Pulse width modulation) is a powerful technique for controlling analog circuits. It uses digital outputs to generate a waveform with variant duty cycle and frequency to control analog circuits. CAN-2088D is a PWM slave module of DeviceNet protocol. It has 8 PWM output channels and 8 high speed counter channels. It can be used to develop powerf..
1,264.30 zł
FJ-AC-MBS-1 (INMBSFGL001I000) FJ-AC-MBS-1 (INMBSFGL001I000)
3 year warranty Quantity discount 5-7 days
Brand: Intesis Model: FJ-AC-MBS-1
Fujitsu RAC and VRF systems to Modbus RTU Interface (to CN connector). The Fujitsu-Modbus gateway INMBSFGL001I000 allows fully bi-directional communication between Fujitsu RAC and VRF systems and Modbus RTU (RS-485) networks. The INMBSFGL001I000 is wired directly to an indoor unit. This allows not only the control of the main AC functions such as operating mode, fan speed, temperature setpoint…but the monitoring of errors, alarms and some interna..
1,264.30 zł
I-87017DW CR I-87017DW CR
Quantity discount Warranty 12 months 2-3 weeks
Brand: ICPDAS Model: I-87017DW CR
8-channel Differential/16-channel Single-ended Analog Input Module. The I-87017DW is a 8-channel differential/16-channel single-ended analog input module. The analog input range is software selectable and supports +/-10 V, +/-5 V, +/-1 V, +/-500 mV, +/-150 mV, 0 ~ +20 mA, +4 ~ +20 mA, and +/-20 mA. And all channels support 240 Vrms overvoltage protection in differential mode. Differential mode and single-ended mode is selected via jumper selectab..
1,264.30 zł
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