KRONES BWU1703 0900853537 ASi-3 PROFIBUS Gateway with Dual ASi Master

The KRONES BWU1703 0900853537 is a PROFIBUS gateway for AS-Interface (ASi) networks, manufactured by Bihl+Wiedemann. Designed as a replacement unit for KRONES systems, the gateway features dual ASi masters, allowing control of two independent ASi loops simultaneously. This ASi-3 PROFIBUS gateway supports duplicate address diagnostics for improved network reliability and fault detection.

Technical Specifications

The BWU1703 is a dual-master ASi-3 PROFIBUS gateway with an IP20 protection rating. It features two ASi loops (ASi-3 masters) for connecting up to 62 ASi slaves per loop or 124 slaves total. Integrated decoupling elements allow the use of a single 24V DC power supply for both ASi circuits under certain conditions. Maximum current per ASi circuit is 4A. The gateway provides duplicate address detection for identifying addressing conflicts on the ASi network. The dimension of the housing is standard for Bihl+Wiedemann gateways.

Communication and Protocols

The upper communication protocol is PROFIBUS. The PROFIBUS interface enables integration with Siemens SIMATIC and other PROFIBUS DP masters. The PROFIBUS side communicates using standard PROFIBUS DP-V0 protocols. The ASi side uses ASi-3 technology for communication with sensors and actuators at the field level. The gateway supports configuration via GSD files, allowing seamless integration into STEP 7 and other PROFIBUS configuration tools.

Power and Decoupling

The integrated decoupling element allows powering two ASi circuits from a single power supply. When line lengths are short, standard 24V DC power supplies can be used. Under specific conditions, one power supply can power multiple single gateways. The maximum current per ASi loop is 4A, suitable for typical ASi network loads.

Diagnostic Features

The duplicate address detection function monitors the ASi network for multiple slaves with the same address, a common cause of communication errors. When detected, the gateway can report the fault via PROFIBUS diagnostics, allowing rapid troubleshooting and repair. LED indicators on the front panel display power status, ASi network status, PROFIBUS link status, and error conditions.

Applications in KRONES Systems

The BWU1703 is used as a replacement unit for KRONES packaging and bottling machinery. KRONSES specific part number 0900853537 identifies this gateway as suitable for spare parts inventory for KRONES equipment. The gateway connects ASi field devices such as sensors, actuators, and safety devices to the PROFIBUS control network.

Physical Design and Installation

The BWU1703 is housed in an IP20 enclosure designed for DIN rail mounting in a control cabinet. The front panel provides ASi terminals for two loops, PROFIBUS D-sub 9-pin female connector, and a 24V DC power input. The unit has LED indicators for power, ASi status, and PROFIBUS communication. The gateway dimensions are standard for Bihl+Wiedemann dual-master gateways.

Conclusion

The KRONES BWU1703 0900853537 ASi-3 PROFIBUS dual-master gateway provides two ASi loops with duplicate address detection and integrated decoupling. With IP20 protection, 4A per loop current capacity, and compatibility with KRONES systems, it is designed for sensor-actuator communication in packaging and bottling machinery.