Description
Description
AS-Interface (Actuator Sensor Interface, AS-i) is an industrial networking solution (physical layer, data access method and protocol) used in PLC, DCS and PC-based automation systems. It is designed for connecting simple field I/O devices (e.g. binary ON/OFF devices such as actuators, sensors, rotary encoders, analog inputs and outputs, push buttons, and valve position sensors) in discrete manufacturing and process applications using a single 2-conductor cable. [...]
It is used in automation applications, including conveyor control, packaging machines, process control valves, bottling plants, electrical distribution systems, airport baggage carousels, elevators, bottling lines and food production lines.
Wikipedia, 2013-10-18
On this page
Block Diagram
AS-Interface Essentials
- master-slave principle
- data and power on a single two-conductor cable
- medium: unshielded cable 2 x 1.5 mm²
- piercing technology
- segment length 100 m, segments can be combined to networks of up to 300 m through the use of repeaters; termination may extend the length of a segment, several solutions for termination resistances are on the market.
- signals, data, and power up to 8 A
- typical, 4 inputs + 4 outputs per slave, other combinations from 1 up to 16 in- and outputs are possible
- electronic address configuration through the bus connection
Applicable Specification(s)
- Complete Specification, Version 3.0, Revision 4, December 13, 2011, Actuator Sensor Interface (AS-Interface®)