AS-Interface Safety at Work - SCHMERSAL - #4

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4 AS-Interface Safety at Work® Safe transmission mechanism The communication protocol for safety relevant applications is based on the unchanged ASInterface Standard transmission. With each AS-Interface master call each safety device answers in return with a preset data telegram. This information is analysed and in case of a deviation from the pre-set values the enabling paths are opened. The maximum response time for a safe shutdown is 40 ms. Cost reduction with AS-Interface Safety at Work Reduce cost and installation time – A never ending story. During installation and machine commissioning as well as during maintenance, AS-Interface SaW supports the user with integrated system diagnosis. It provides detailed information about the cause and place of the failure, and enables the user to quickly find and analyse a malfunction and therefore minimise machine downtime. With ASInterface Safety at Work you can directly reduce your cost. More flexibility with AS-Interface Safety at Work For the realisation of individual safety solutions, SCHMERSAL offers the maximum amount of flexibility with its diverse range of safety devices. Depending on the application the user can choose the optimal solution out of an extensive product basket. As AS-Interface SaW is an open system, the user has also the possibility to include additional Safety components from other suppliers. AS-Interface Safety at Work fulfils the safety requirements to the highest standards. AS-Interface Safety at Work (SaW) is the first safety bus system based upon the open standard of AS-International. Safety components such as Emergency Stop command devices, safety switches, solenoid interlocks or safety light curtains are simply connected to the yellow AS-Interface cable. For the evaluation of the safety signals a “Safety Monitor” is merely added to the AS-Interface system. AS-Interface Standard in accordance with EN 50295 With the integration of AS-Interface SaW the AS-Interface network will continue to operate unchanged. The well known components, like the standard AS-Interface master, the standard power supply as well as the AS-Interface yellow cable will still form the basis of all ASInterface installations. Therefore an existing machine can easily be equipped with additional AS-i SaW components. The heart of safety The safety monitor analyses all transmitted information from each safety device on the ASInterface network and, in case of a safety device being activated or in case of a fault in one of the safety devices, the safety monitor immediately shuts down to create a safe condition. The safety monitor is equipped with one or two redundant pairs of enabling paths for applications up to performance level e according to EN ISO 13849-1. Each safety function of the monitor can be set with a simple drag & drop software. Afterwards the configuration is downloaded into the safety monitor and protected with a password. AS-Interface SaW Easy, safe and reliable