SMI – Standard Motor Interface
The leading standard for motor control
SMI (Standard Motor Interface) is an open communication protocol specifically developed for automating sun shading systems. Unlike conventional motor systems, SMI enables bidirectional communication between motor and control system, ensuring optimized control, monitoring, and diagnostics.
The BREL Vestamatic Group is a leading provider of motors and control systems with SMI technology, with more than 100,000 SMI products successfully installed worldwide.
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What is SMI?
SMI is a universal 5-core BUS system that connects motors and controls for shading and window applications.
This allows products from different manufacturers with SMI technology to be seamlessly combined.
SMI can also be easily integrated into building management systems and supports technologies such as KNX, LON, Modbus, BACnet, RS485, and RS232.
As a standard, it ensures supplier independence, future-proof IoT solutions, and installations with fewer components. SMI is the preferred choice for investors, architects, and consultants to meet the highest building standards worldwide.
Contact BREL Vestamatic Group to learn more about SMI
Key Features
Precise and consistent control of motorized blinds
SMI motors receive and execute digital commands with millimeter precision, essential for environments requiring optimal light control and energy efficiency.
Bidirectional communication
SMI motors provide real-time feedback on position, status, and potential faults, enabling proactive maintenance and efficient system management.
Synchronization of multiple motors
SMI technology allows synchronized control of multiple motors, ensuring uniform movement across large installations.
Diagnostics and maintenance functions
Real-time diagnostics simplify maintenance and allow early detection of issues, minimizing downtime.
SMI Products of BREL Vestamatic Group
BREL Vestamatic Group SMI Projekte
The BREL Vestamatic Group is a leading provider of SMI-based motors and control systems, with over 100,000 SMI products successfully deployed in projects worldwide.







