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جابجایی بایت ها برای دیتای دریافتی از Modbus RTU

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Parsa

(@parsa)

Trusted Member

عضو شده: 3 سال قبل

ارسال‌ها: 68

۲۶/۰۷/۱۴۰۱ ۶:۰۸ ب.ظ

با سلام

من یک مقدار Real دارم که از یوکوگاوا به زیمنس داده میشه. پروتکل مدباس RTU بر بستر RS485

مجبورم در سمت زیمنس جای بایت ها را عوض کنم . برای اینکار از دستورات CAW و CAD در STL استفاده می کنم. ولی مقدار دریافتی صحیح نیست.

سوالم اینه که در یک Double word آیا کافیه جای دو تا word عوض بشه یا اینکه در word ها باید جای Byte ها هم عوض بشه؟

ممنون

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amir omidi

(@amiromidi)

Trusted Member

عضو شده: 7 سال قبل

ارسال‌ها: 56

۲۷/۰۷/۱۴۰۱ ۱۰:۰۹ ق.ظ

درود بر شما

توی مورد مشایه همین موضوع، با جابجایی word ها مشکل حل شد. برای جابجایی وردها از دستور rotate برای دیتای double word به میزان 16 بیت استفاده کردم و سپس double word را به real تبدیل نمودم.

موفق باشید

پاسخنقل‌قول

Parsa

(@parsa)

Trusted Member

عضو شده: 3 سال قبل

ارسال‌ها: 68

۲۸/۰۷/۱۴۰۱ ۵:۴۲ ب.ظ

@amiromidi

ممنون از شما آقای مهندس امیدی

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آخرین ارسال: راه اندازی کلاینت جدیدترین عضو ما: saeid ارسال های اخیر Unread Posts Tags

Forum Icons: Forum contains no unread posts Forum contains unread posts

آیکن های موضوع: Not Replied پاسخ داده شده فعال داغ مهم تایید نشده حل شده خصوصی بسته شده

Super Globals

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classic