In this bel.academy video Igor Bogomolni explains topics such as redundancy, dormant errors, and methods using the example of an electronic circuit for the safe evaluation of sensor signals . The video builds on the previous video “How to build a Safety Digital Input” and connects directly to it. We recommend watching this video first.

After Igor talked about the safe state in the first part of our second bel.academy episode, the second part is about building a safety digital input.

What is a safe state and how should the system be designed to achieve this safe state? Our hardware expert Igor answers these questions in the first part of our second bel.academy episode.

How does the hardware architecture of a safety system look like? What must be considered during the development of the hardware? – In short: How to build the system that it meets the requirements of SIL 3 / Cat 4 / PLe? Our hardware expert Igor Bogomolni answers these questions in the first video of our​ bel.academy series!