ASIsafe or AS-I Safety at Work is a standard AS-Interface network with special ASIsafe components that enable its use in safety systems. AS-i Safety at Work is approved for applications with up to SIL3 safety requirements according to EN 61508 or PLe according to EN ISO 13 849-1:2006.
Compared to conventional safety solutions, the advantage of AS-i Safety at Work is the ability to send safe and unsafe signals over the same cable. This eliminates the previously required redundant infrastructure as well as the costs associated with complex and error-prone parallel wiring. An additional advantage is that components such as Emergency Stop pushbuttons, or safety door contacts can be connected directly to the AS-Interface network.