The idea that diagnostics are useless contradicts everything I’ve ever learned and taught about diagnostics.
Diagnostics help identify problems. Diagnostics can turn a fault that is unrevealed during normal operation into a detected fault, which allows me to take action. That action could be an automatic transition to the…
Though this is largely true, I want to discourage people from completely ignoring the good things that IEC 61508 does for the end user.
IEC 61511 is the process industry functional safety standard derived from IEC 61508. In the very first section of IEC 61511 (“Scope”), the standard describes…