Products Description
The Bihl+Wiedemann BWU3363 ASi-3 PROFINET Gateway (Stainless Steel, 2 Masters) is a robust industrial communication gateway designed to connect AS-Interface (ASi) networks with PROFINET systems, enabling fast and reliable data exchange in modern automation architectures.This gateway supports ASi-3 compatibility and operates with two independent ASi networks, each managed by its own ASi-3 master. This dual-master configuration allows efficient parallel communication and improved system flexibility in complex automation setups. Integrated ASi current measurement and decoupling functions are included, supporting up to 4 A per ASi network for stable power distribution and diagnostics.On the communication side, the device provides a PROFINET fieldbus interface, ensuring real-time data transmission to higher-level control systems.Built in a stainless steel housing for enhanced durability, the BWU3363 is suitable for demanding industrial environments. It delivers strong mechanical protection and long-term stability in harsh operating conditions, making it ideal for machine building, factory automation, and distributed I/O systems.
Email: sales7@apterpower.com
Product Specifications & Standards

Model: BWU3363
Product Type: ASi-3 to PROFINET Gateway
Fieldbus interface: PROFINET
ASi-5/ASi-3: ASi-3 compatible
Number of ASi networks, number of ASi Master: 2 ASi networks, 2 ASi-3 Masters
Integrated decoupling, ASi current measurement in the gateway: yes, max. 4 A/ASi network
Inputs Safety: no local safe inputs
Outputs Safety: no local safe output
Safety communication: no Safety communication
Operating current: ca. 250 mA
Baud rate: 100 MBaud
Cycle time: 150 μs * (number of ASi-3 nodes + 2)
Operating temperature: 0 °C … +55 °C
Storage temperature: -25 °C … +85 °C
Call or Whatsapp: +86 18030175807
Primary Advantages & Features
- Dual AS-i Master Architecture:The BWU3363 features a sophisticated dual AS-i master architecture, allowing for the simultaneous management of two independent networks within a single gateway to maximize system flexibility.
- PROFINET Integration:With native PROFINET support, the BWU3363 ensures seamless, high-speed communication between field-level sensors and modern Ethernet-based PLC systems.
- High System Availability:By separating network traffic across two circuits, the BWU3363 significantly improves redundancy and operational stability in complex, large-scale automation setups.
- Real-Time Data Exchange:Guarantees fast and reliable cyclic communication, ensuring that critical process data is transferred between field devices and the controller without delay.
- Advanced Diagnostic Capability:Offers detailed status monitoring and fault localization for both AS-i networks, which reduces troubleshooting time and improves maintenance efficiency.
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Broad Industrial Applications
- Material Handling and Conveyor Systems:Ideal for long-distance conveyor lines, the unit manages distributed I/O efficiently while resisting the mechanical stress and vibration typical of material handling environments.
- Warehouse Logistics and Sorting:Provides the high-speed data throughput necessary for modern warehouse sorting automation, ensuring that thousands of sensors and actuators are synchronized in real time.
- Industrial Machinery with Distributed Sensors:Simplifies the design of complex machinery by consolidating distributed sensor networks into a single, easy-to-manage control point.
- Process Automation with PROFINET:The BWU3363 acts as a robust communication bridge for process automation, allowing for a direct and stable link between field-level AS-i devices and high-level PROFINET infrastructures.
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