BUS - Bus Communication

BUS - Bus Communication

ESBAU
Brand: D+H Mechatronic
D+H Mechatronic is one of the world's leading solution providers manufaturing window drives and control panels for SHEV-smoke ventilaton and natural ventilation systems. With its pioneering and innovative approach, it establishes industry standards in terms of quality, technology, and performance. D+H Mechatronic offers a broad product range including electric chain drives, geared linear drives, and special featured drives. D+H provide products such as control panels, activators, and sensors that operates the window drives based on their intended use and specific system solutions. Thanks to the variety of bracket set solutions, window drives can be easily and quickly installed on wooden, aluminum or modern PVC windows. They cater to a wide array of applications, from conventional windows roof light and façade openings.

Smart building system


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Commercial Buildings, Industrial Facilities, Residential Buildings, Transportation Structures, Health Structures, Educational Buildings, Data Centers, Educational Institutions, Entertainment Venues

What does bus communication mean at D+H?

In information technology, the term 'bus' refers to a system that transmits data between multiple nodes in a network using a shared transmission path. The most important nodes in a smoke extraction and ventilation network are the building management system, window drives and control panels.

In the D+H product range you will find two bus technologies: AdComNet (ACN) for communication between controllers, and AdComBus (ACB) for communication between drive and controller. D+H bus technologies are based on Modbus, allowing them to be integrated in virtually any building management system.

• D+H provides two types of bus technologies: AdComNet (ACN) and AdComBus (ACB).
• ACN facilitates communication between controllers, while ACB enables communication between the drive and controller.
• D+H bus technologies are Modbus-based, allowing them to integrate seamlessly with nearly all building management systems.
• ACN has the distinction of being the first SHEV bus system approved by VdS.
• This technology allows SHEV controllers to come together to form a singular decentralized system.
• The controllers are linked in such a way that complex scenarios can be configured depending on space utilisation, i.e. individualised smoke compartments for opening and closing windows.

Benefits of AdComNet Technology:
• Significant cost savings due to minimized cabling needs and wiring efforts
• Decreased cable cross-sections and lengths due to decentralised topology
• Only one tenth of typical power consumption per node
• No special power supply required if the mains power fails

Benefits of AdComBus Technology:
• Direct control of the drives through the building management system
• Individualised control of multiple drives on a single cable
• One-percent position control accuracy
• Feedback on the actual position of the drives
• Optimum display of possible error messages
• Reduced cabling needs and less wiring effors due to bidirectional communication
• AdComBus (ACB) is designed on the Modbus RTU protocol.

Key Details about (ACB):
• ACB is a refined version of the AdComNet system.
• ACB allows the drives to communicate with the controllers and sends back information of opening width and status.
• Less cabling is required due to bidirectional bus communication between D+H controllers and D+H drives using just one bus line
• Synchronous operation of multiple drives on one opening element easy to implement
• For ventilation projects , ACB drives can be operated directly from the building management system.
• Extension and retraction of the chain can be controlled with millimetre precision
• Quick and easy read-out of all status messages
• Direct integration into the BMS via open Modbus RTU protocol
• Virtual grouping allows up to 32 drives to be controlled on just one cable, either as a group or separately, which reduces wiring and streamlines the control panel system