ASi Systems: Power Supply, Extension, and Network Reliability

Ensuring Stable Operation and Expansion of Network Segments

For reliable and efficient operation of an AS-Interface network, quality power supply and flexible cable segment expansion are essential. ASi networks operate on 30.5 V DC, with data being transmitted by modulating an AC signal onto the same power line.

Pepperl+Fuchs equipment in this section guarantees:

• Reliable Power: Power supplies from Pepperl+Fuchs deliver a stable 30.5 V and feature an integrated data decoupling network for the correct extraction of modulated process data.

• High Safety Level (PELV): All power supplies meet PELV requirements, which enhances system safety and eliminates the need for a separate conductor for the ASi circuit.

• Range Extension: The use of repeaters allows for effective extension of the network length.

Benefits and Application Industries

These components are fundamental to all ASi installations in any industry requiring decentralized I/O:

• Logistics and Long Conveyor Lines: The use of Repeaters easily extends the cable length from 100m to 200m and more, isolating network segments and allowing separate power supplies for each.

• Large Manufacturing Facilities: The application of Power Extenders allows standard 30V power supplies to be used with the ASi system, optimizing costs and standardizing equipment.

• Systems with Increased Safety Requirements: Some power supply models include an additional ground fault monitoring function to improve overall system safety.

Pepperl+Fuchs ASi Systems Equipment Types (Power, Extension, and Repeaters)

• ASi Power Supplies: Supply 30.5 V DC with an integrated data decoupling network. Models are available with power ratings from 2.8 A to 8 A.

• Power Extenders: Used for data decoupling, allowing the ASi network to be powered by a standard 30 V power supply.

• Repeaters: Used to extend the network by an additional 100m. They isolate networks and do not occupy an address on the AS-Interface bus.

Official Partner in Ukraine — CSC-Automation LLC

CSC-Automation LLC is the official distributor of Pepperl+Fuchs. We offer a full range of components for powering and extending your ASi network, guaranteeing reliability and compliance with standards.