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دیتابلوک های H Parameter در سیستم S7-400H

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kolahi

(@kolahi)

Estimable Member

عضو شده: 7 سال قبل

ارسال‌ها: 234

۱۵/۱۰/۱۳۹۷ ۶:۵۱ ب.ظ

در پیکربندی S7-400H اگر به پارامترهای CPU را باز کنیم در تب H parameter دو دیتا بلوک DB1 و DB2 نوشته شده . کاربرد این DB ها در کجاست؟ آیا مفهومش اینه که این دو رزرو هستن و برنامه نویسی باید DB های خودش را از شماره 3 شروع کند؟

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Attachment: H_Parameter.png

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H parameter S7-400H

mohamad reza maher

(@mohandesmaher)

عضو Admin

عضو شده: 7 سال قبل

ارسال‌ها: 92

۱۵/۱۰/۱۳۹۷ ۱۰:۲۶ ب.ظ

این دو DB برای Redundant I/O استفاده می شود . اگر کارت های ورودی را با هم Redundant بکار ببریم در برنامه نویسی از یک FB برای ایجاد افزونگی ورودی باید استفاده شود که DB اولی را نیاز دارد و اگر کارت های خروجی را با هم Redundant کنیم در انتهای برنامه نیاز به FB دیگری برای افزونگی خروجی داریم که DB دومی را نیاز دارد. این FB ها در کتابخانه نرم افزار در دسترس هستند.

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