HMS Anybus AB7646-F PROFIBUS Master to PROFINET-IO Device Gateway
Product Overview
The HMS Anybus AB7646-F is an X-gateway that acts as a PROFIBUS Master to PROFINET-IO Device, bridging PROFINET-based PLCs with legacy PROFIBUS field devices. It allows a modern PROFINET controller to communicate with PROFIBUS slaves without replacing the existing fieldbus hardware, extending the life of existing automation investments.
Key Specifications
Model: AB7646-F Anybus X-gateway
Power Supply: 24 VDC (+/- 20%)
Current Consumption: Max 400 mA, Typ 200 mA at 24 VDC
Dimensions: 114 x 44 x 127 mm (W x H x D)
Weight: 400 g (0.880 lb)
Operating Temperature: 0°C to 55°C (industrial grade)
Storage Temperature: -40°C to +85°C
Enclosure: IP20, DIN rail mounting
Power Connector: 2-pole 5.08mm Phoenix screw connector
Communication and Protocol Handling
The gateway copies cyclic I/O data between the two networks in both directions, offloading the host PLC from protocol translation tasks. It is easily configured via a web interface or a Windows-based configuration tool. The cycle time of the PROFIBUS DP-V0 master is typically set to match the field device requirements.
Industrial Applications
Applications include retrofitting legacy PROFIBUS drives to a PROFINET PLC, connecting older I/O blocks to new controllers, and building interface panels for multi-vendor machinery.
Conclusion
The HMS Anybus AB7646-F is an essential tool for system integrators bridging the gap between classic fieldbus technologies and modern industrial Ethernet standards.





