HMS Anybus AB7646-F X-Gateway for PLC Systems

The HMS Anybus AB7646-F is an industrial gateway belonging to the Anybus X-gateway family. It enables seamless data exchange between two different industrial networks, allowing PLCs and other devices to communicate without complex programming. This model operates on 24V DC with a typical consumption of 400mA.

Technical Specifications

• Product code: AB7646-F

• Power supply: 24 V DC ±20%, 400 mA typical

• Network interfaces: Two independent fieldbus ports (specific protocols depend on ordering code)

• Data transfer rate: Up to 12 Mbps (for PROFIBUS) or 100 Mbps (for Ethernet variants)

• Operating temperature: -25°C to +70°C

• Enclosure rating: IP20, plastic housing

• Configuration: Via USB port with Anybus Configuration Manager software

Gateway Functionality

The AB7646-F acts as a bidirectional translator between two networks. It buffers I/O data in an internal memory map of up to 512 bytes input and 512 bytes output per direction. The gateway supports cyclic I/O data exchange as well as explicit messaging for parameter access.

Supported Network Pairs

The AB7646-F variant is typically configured for PROFIBUS DP slave to PROFINET IO device or other combinations. Please verify the specific protocol pair with HMS ordering information. It supports up to 32 slaves on the master side and acts as a slave on the other network.

Configuration and Diagnostics

Configuration is performed via the Anybus Configuration Manager (free download) using a standard USB cable. The tool allows mapping of data bytes, setting network parameters, and updating firmware. The gateway features a built-in web server for diagnostics and status monitoring. LED indicators show network status, power, and error conditions.

Mounting and Dimensions

Dimensions: 35mm width x 110mm height x 103mm depth (DIN rail mount). The gateway clips onto 35mm DIN rail according to EN 60715. It requires 25mm clearance above and below for ventilation. Weight: 150g.

Electrical Isolation

The gateway provides 1500Vrms isolation between the power supply and each network interface. Both network ports are isolated from each other to prevent ground loops. The USB configuration port is also isolated.

Environmental Compliance

The AB7646-F is CE marked, RoHS compliant, and meets UL 61010-1 safety standards. It is designed for pollution degree 2 environments and withstands vibration 2g (10-150 Hz) and shock 15g.

Typical Applications

This gateway is used to connect legacy PROFIBUS devices to modern PROFINET controllers, or to interface between different PLC brands (e.g., Siemens to Rockwell). It is also suitable for connecting drives, HMIs, or SCADA systems.

Ordering Information

The AB7646-F is part of the X-gateway series. For exact protocol combination, refer to the HMS Anybus AB7646 ordering guide. The gateway includes a 2-year manufacturer warranty against defects.

Conclusion

The HMS Anybus AB7646-F gateway provides a reliable, easy-to-configure solution for network interoperability, saving engineering time and reducing hardware complexity in multi-vendor automation systems.