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Does the safety barrier in the SIS system require SIL certification? Does the safety barrier of Nanjing Youbei have a SIL certification?
This isn’t very clear; generally, CPUs are certified
SIS is a system, and all the components it includes must be certified; it’s just difficult to achieve this in practice.
All require certification; the selected instrument products must all have a SIL certificate
All require certification; the SIL level of the product must be determined through calculations
It is said that certification is required for all of them. I have used the manufacturer you chose, but unfortunately I didn’t use it in a SIS system; I didn’t consider the SIL certification
Agree with what was said on the third floor: SIS is a system, and all the components that make up this system need to be certified. Current mainstream safety barrier products can meet the requirements of SIL2 level, such as P+F/MTL/Chenzhu, etc
Theoretically, all electronic components, including safety barriers and field instruments, need to have SIL certification
A pigsty is also a system, you know. . . Boars, sows, adult pigs, piglets, pigs in heat, and impotent pigs – as well as pork, pig liver, pig heart, pig ears, pig intestines, and pig hair and earwax – all need to have an SIS certification; only then can you be sure that what you eat is safe. Hehehe. Once you’re full, even when you go to the bathroom, it needs to have an SIS certification; otherwise, it’s not safe. The smell of pig manure could contaminate your rice cooker. Right? . .
Safety barriers require SIl certification. I have also seen certified manufacturers. You can contact the manufacturer and, after specifying the relevant model series, ask them for the certificate.