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تاثیر OB84 در رفتار سیستم S7-400H

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kolahi

(@kolahi)

Estimable Member

عضو شده: 7 سال قبل

ارسال‌ها: 234

۱۶/۱۰/۱۳۹۷ ۳:۵۳ ب.ظ

کلا OB84 چه نقشی داره؟ و در سیستم S7-400H اگر دانلود نشه ممکنه مشکلی پیش بیاد؟ ممنون

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OB84 S7-400H Simatic STEP7

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(@en-sh66fazli)

Reputable Member

عضو شده: 7 سال قبل

ارسال‌ها: 324

۱۸/۱۰/۱۳۹۷ ۸:۰۹ ب.ظ

این OB نقش لینک سنکرون سازی رو داره اما اگه دانلود نشه چی میشه تست نکردم

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mohamad reza maher

(@mohandesmaher)

عضو Admin

عضو شده: 7 سال قبل

ارسال‌ها: 92

۱۸/۱۰/۱۳۹۷ ۹:۲۳ ب.ظ

نمونه مشکلی که دانلود نشدن OB84 به سیستم H ایجاد می کند:

یک کارت I/O در Hwconfig به ET200 اضافه کنید ولی در عمل نصب نکنید . HWconfig را بصورت Runmode دانلود کنید ابتدا به Stby میفرستد و وقتی میخواهد Switch to انجام دهد هر دو CPU به مد STOP می روند و در بافر پیغام OB84 می آید . پس برای جلوگیری از این مشکل همیشه OB84 را دانلود کنید.

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