B&R MCGE31-0模擬輸入量模塊
1.產(chǎn) 品 介 紹
品牌:B&R
型號(hào)說(shuō)明:B&R MCGE31-0模擬輸入量模塊
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B&R MCGE31-0單精度實(shí)數(shù)此格式在內(nèi)存中顯示為:?jiǎn)尉葦?shù)字在內(nèi)存中占用4個(gè)字節(jié)。長(zhǎng)字浮點(diǎn)數(shù)據(jù)類型1單精度實(shí)數(shù)格式雙精度實(shí)數(shù)格式1_7擴(kuò)展精度實(shí)數(shù)格式ABCDF01壓縮十進(jìn)制實(shí)數(shù)格式科學(xué)符號(hào)格式(十進(jìn)制)1位符號(hào)字段(1個(gè)二進(jìn)制數(shù)字)8位偏置指數(shù)字段(2個(gè)十六進(jìn)制數(shù)字。偏置=$7F)23位分?jǐn)?shù)字段(6個(gè)十六進(jìn)制)注意單精度和雙精度格式有一個(gè)隱含整數(shù)位(始終為1)。B&R MCGE31-0擴(kuò)展精度實(shí)數(shù)此格式在內(nèi)存中顯示為:擴(kuò)展精度數(shù)在內(nèi)存中占用10個(gè)字節(jié)。壓縮十進(jìn)制實(shí)數(shù)此格式在內(nèi)存中顯示為:壓縮十進(jìn)制數(shù)在內(nèi)存中占用12個(gè)字節(jié)??茖W(xué)符號(hào)此格式提供了一種輸入和顯示浮點(diǎn)十進(jìn)制數(shù)的方便方式。在內(nèi)部,該數(shù)字被組合成一個(gè)壓縮的十進(jìn)制數(shù),然后轉(zhuǎn)換為指定數(shù)據(jù)類型的數(shù)字。B&R MCGE31-0
Single Precision Real This format would appear in memory as: A single precision number takes 4 bytes in memory. Longword Floating Point Data Types 1Single Precision Real Format Double Precision Real Format 1_7 Extended Precision Real Format ABCDEF01 Packed Decimal Real Format Scientific Notation Format (decimal) 1-bit sign field (1 binary digit) 8-bit biased exponent field (2 hex digits. Bias = $7F) 23-bit fraction field (6 hex digits) B&R MCGE31-0Note The single and double precision formats have an implied integer bit (always 1). Extended Precision Real This format would appear in memory as: An extended precision number takes 10 bytes in memory. Packed Decimal Real This format would appear in memory as: A packed decimal number takes 12 bytes in memory.Scientific Notation This format provides a convenient way to enter and display a floating point decimal number. Internally, the number is assembled into a packed decimal number and then converted into a number of the specified data type.B&R MCGE31-0
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