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Outline 2-1
1
Outline
Constants can be divided into two main categories: "numeric types" and "character types". These
categories are further divided as shown below.
Category
Type
Details/Range
Numeric
type
Integer
type
Decimal constants
-2,147,483,648 to 2,147,483,647
Binary constants
&B0 to &B11111111
Hexadecimal constants
&H80000000 to &H7FFFFFFF
Real type
Single-precision real numbers
-999,999.9 to +999,999.9
Exponential format single-precision real numbers
-1.0
×
10
38
to +1.0
×
10
38
Character
type
Character
string
Alphabetic, numeric, special character, or katakana (Japanese)
character string of 255 bytes or less.
2
Numeric constants
2.1
Integer constants
1. Decimal constants
Integers from -2,147,483,648 to 2,147,483,647 may be used.
2. Binary constants
Unsigned binary numbers of 8 bits or less may be used. The prefix "&B" is attached to the
number to define it as a binary number.
Range: &B0 (decimal: 0) to &B11111111 (decimal: 255)
3. Hexadecimal constants
Signed hexadecimal numbers of 32 bits or less may be used. The prefix "&H" is attached to the
number to define it as a hexadecimal number.
Range: &H80000000 (decimal: -2,147,483,648) to &H7FFFFFFF (decimal: 2,147,483,647)
2.2
Real constants
1. Single-precision real numbers
Real numbers from -999999.9 to +999999.9 may be used.
• 7 digits including integers and decimals. (For example, ".0000001" may be used.)
2. Single-precision real numbers in exponent form
Numbers from -1.0×10
38
to +1.0
×10
38
may be used.
• Mantissas should be 7 digits or less, including integers and decimals.
Examples: -1. 23456E-12
3. 14E0
1. E5
• An integer constant range of –1,073,741,824 to 1,073,741,823 is expressed in signed
hexadecimal number as &H80000000 to &H7FFFFFFF.
MEMO
Содержание SCARA YRCX Series
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Страница 27: ...Chapter 2 Constants 1 1 Outline 2 1 2 2 Numeric constants 2 1 3 3 Character constants 2 2 ...
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