What is AS-I Interface?

During the late 1980 and early 1990, a consortium of 11 companies (commonly known for their offering of industrial non-contact sensing devices) developed the AS-Interface.

Murrelektonik explain just what a AS-I Interface is and also how AS-I Interfaces work and perform.

What is AS-I Interface?

AS-Interface (AS-i) is the simplest of the industrial networking protocols used in PLC, DCS and PC-based automation systems and is designed for connecting binary (ON/OFF) devices, such as actuators and sensors, in discrete manufacturing and process applications using only a single cable. It is an “open” technology supported by hundreds of automation vendors, and more than 20 Million AS-i field devices have been installed and established worldwide.

What is a AS-I Interface?

Key data per AS-i network

Number of slaves Up to 62
Number of I/Os Up to 496 inputs and 496 outputs
Topology Any, combinable,no termination resistors
Medium Unshielded two-wire line for data and energy
Line length 100 m as a standard, extendable to 600 m with Repeater and Extension Plug
Cycle time 5 ms (typical)
Data transfer Digital and analog (16 bit)

Murrelektronik Ltd

Murrelektronik is one of the leading worldwide manufacturers of power distribution components and systems for industrial automation. With over 42,000 products and components produced for various industries, Murrelektronik offer customers the very best in practical field tested products and complete systems for the control, measuring and monitoring of machines, installations and production lines.

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