# Programming the CLEARSY Safety Platform The CLEARSY Safety Platform is a generic PLC able to perform command and control over inputs and outputs. For safety critical applications, the PLC has to be able to determine whether it is fully functional or not. In case of failure, the PLC should move to restrictive mode where all the outputs are deactivated. The stronger the risk of harming people in case of failure, the higher the Safety Integrity Level. For SIL3 and SIL4, the computations have to be performed by a minimum of two processors and checked with a voting system. {% file src="/files/VD4BFy5rbWlyyHYJiclM" %} Introduction slides presented in Master and Engineering Schools {% endfile %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://b-method.gitbook.io/training-resources-for-atelier-b/guides-and-tutorials/programming-the-clearsy-safety-platform.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.