Omron SCARA YRCX Series, Programming Manual, Page: 34 / 506

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3-2 Chapter 3 Variables
2
User Variables & System Variables
2.1 User Variables
Numeric type variables consist of an "integer type" and a "real type", and these two types have
different usable numeric value ranges. Moreover, each of these types has different usable variables
(character string variables, array variables, etc.), and different data ranges, as shown below.
Category Variable Type Details/Range
Dynamic
variables
Numeric type Integer type variables
-2,147,483,648 to 2,147,483,647
(Signed hexadecimal constants: &H80000000 to
&H7FFFFFFF)
Real variables (single-precision)
-1.0
×
10
38
to +1.0
×
10
38
Character type Character string variables
Alphabetic, numeric, special character, or katakana
(Japanese) character string of 255 bytes or less.
Static
variables
Numeric type Integer type variables
-2,147,483,648 to 2,147,483,647
Real variables (single-precision)
-1.0
×
10
38
to +1.0
×
10
38
Array
variables
Numeric type Integer array variables
-2,147,483,648 to 2,147,483,647
Real array variables (single-precision)
-1.0
×
10
38
to +1.0
×
10
38
Character type Character string array variables
Alphabetic, numeric, special character, or katakana
(Japanese) character string of 255 bytes or less.
2.2 System Variables
As shown below, system variables have pre-defined names which cannot be changed.
Category Type Details Specific Examples
Input/output
variables
Input variables External signal / status inputs DI, SI, SIW, SID
Output variables External signal / status outputs DO, SO, SOW, SOD
Point variables Handles point data Pnnnn
Shift variables Specifies the shift coordinate No. as
a numeric constant or expression
Sn
REFERENCE For details, refer to "9 System Variables" in this Chapter.
NOTE
• A r r a y v a r i a b l e s a r e
dynamic variables.