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کاربرد Copy RAM to ROM

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Parsa

(@parsa)

Trusted Member

عضو شده: 3 سال قبل

ارسال‌ها: 68

۰۳/۰۹/۱۴۰۱ ۸:۵۶ ب.ظ

درود بر همکاران گرامی

ممکنه در مورد کاربرد Copy RAM to ROM در STEP7 توضیح مختصری بدید.

چه تفاوتی با Download User Prog. to Memory Card داره

مرسی

نقل‌قول

amir omidi

(@amiromidi)

Trusted Member

عضو شده: 7 سال قبل

ارسال‌ها: 56

۰۷/۰۹/۱۴۰۱ ۹:۰۳ ق.ظ

درود بر شما

cpu400 را در نظر بگیرید که دارای کارت حافظه فلش می باشد

همانطور که میدانیم این CPU دازای حافظه داخلی از جنس RAM نیز می باشد.

اگر شما از هر محیط برنامه مثلا محیط LAD/STL/FBD اقدام به دانلود یک بلوک برنامه مثل OB1 بکنید، این بلوک در حافظه RAM داخلی CPU می نشیند حال در این سیستم ما دو OB1 داریم.یکی روی فلش(که قبلا دانلود شده است) و دیگری روی رم داخلی که CPU این بلوک را مقدم می داند و این را اجرا می کند. حال چنانچه CPU به هر دلیلی ریستارت شود بعد از بالا امدن CPU برنامه از روی کارت فلش به CPU لود می شود و OB1 روی رم داخلی پاک می شود. برای جلوگیری از این مشکل میتوان از گزینه COPY RAM TO ROM استفاده نمود.

گزینه DOWNLOAD USER PROG..... هم که کل اطلاعات شامل سخت افزار و برنامه را به CPU لود می کند که منجر به توقف CPU خواهد شد.

موفق باشید.

پاسخنقل‌قول

kolahi

(@kolahi)

Estimable Member

عضو شده: 7 سال قبل

ارسال‌ها: 234

۱۰/۰۹/۱۴۰۱ ۶:۴۶ ب.ظ

سلام

در ضمیمه فایل راهنمای زیمنس را برای این موضوع ببینید

Attachment: 15389520_STEP7_Function_RAM_to_ROM_copy.pdf

پاسخنقل‌قول

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