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سیگنال آنالوگ خروجی fail safe

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(@en-sh66fazli)

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عضو شده: 7 سال قبل

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۱۷/۰۸/۱۴۰۲ ۸:۳۶ ب.ظ

سلام در یکی از مناقصه های شرکت نفت کارفرما برای آنالوگ های خروجی هم کارت fail safe میخواد و با این استدلال که چون سیستم هیما برای خروجی آنالوگ داره و زیمنس نداره پس در sil3 ما میتونیم سیگنال آنالوگ داشته باشیم

دوتا سوال یکی اینکه اصلا سیستم هیما چرا در sil3 آنالوگ داره؟

و اصلا چرا کارشناسانی مثل کارشناسان نفت میان درخواست سیگنال آنالوگ در sil3 میکنن برای سیستم fail safe

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Parsa

(@parsa)

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عضو شده: 3 سال قبل

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۲۱/۰۸/۱۴۰۲ ۲:۳۴ ق.ظ

سوال جالبی بود علاقمند شدم هیما را چک کنم.

والا تا جایی که ما هم شنیدیم فرمان خروجی سیستم هایESD فقط بصورت on/off هستش

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Ardavan

(@ardavan)

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۰۷/۰۹/۱۴۰۲ ۱۰:۱۰ ق.ظ

برخی مواقع در سیستم های esd لازم هست که فرمان shutdown بصورت آنالوگ به یک ولو کنترلی ارسال بشه
من همچین سیستمی را در فاز ۱۳ دیدم

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(@en-sh66fazli)

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عضو شده: 7 سال قبل

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۰۷/۰۹/۱۴۰۲ ۸:۱۳ ب.ظ

@parsa

اصلا مهندس جان درستش همینه

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(@en-sh66fazli)

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عضو شده: 7 سال قبل

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۰۷/۰۹/۱۴۰۲ ۸:۱۵ ب.ظ

@ardavan

سلام مهندس جان میشه استاندارد اون سیستم رو به اشتراک بزارید تا ببینیم از روی چه استانداردی لوپ طراحی شده و یا در چه sil هستش

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