Overview AS-Interface As a cost-effective and robust bus system at field level, AS-Interface connects actuators and sensors – from temperature sensors to motor starters – to the higher control level. For our complete AS-Interface product range for standard or safety applications we offer you a consistent, easy connection to PROFIBUS or PROFINET. AS-Interface: easy, safe and consistent! Comprehensive technical information can be found in manuals/operation instructions under: http://support.automation.siemens.com/WW/view/de/23126063/133300 More information Additional information is available in the Internet under: http://www.siemens.de/as-interface