Real Number (E); Character String (" ") - Mitsubishi Electric L02SCPU User's Manual And Reference

6.3

Real Number (E)

The real number (E) is a device used to specify real numbers in programs. In programs, specify it as E (example:
E1.234).
( Page 374, Appendix 1.3)
(1) Specification range
(a) Real number setting range
• For single-precision floating-point data
128
< Device  -2
-2
• For double-precision floating-point data
1024
< Device  -2
-2
*1 Up to 15 digits can be entered in a programming tool.
(b) When an overflow or underflow has occurred
OPERATION ERROR (error code: 4141)
(c) When a special value
If operation is performed with input data that contains a special value, "OPERATION ERROR" (error code:
4140) occurs.
The special values are -0, unnormalized numbers, nonnumeric characters, and .
*1
(2) Specification method
Real numbers can be specified in programs by the following expressions.
• Normal expression: A numeric value can be specified as it is. (Example: 10.2345 can be specified as
E10.2345.)
• Exponential expression: A numeric value is specified by (Value)  10
E1.234 + 3.
*1 + 3 represents 10
6.4

Character String (" ")

The character string is a device used to specify a character string in program. Characters enclosed in quotation marks
are specified. Alphabets are case-sensitive. A string from the specified character to the NUL code (00
Note that, however, up to 32 characters can be specified for an instruction using a character string, such as $MOV.
-126 -126
 Device < 2
, 0, 2
*1
-1022 -1022
 Device < 2
, 0, 2
Overflow
*1
is input
*1
)
3
in E1.234 + 3.
128
1024
Turned to 0 without any error
n
. (Example: 1234 is specified as
CHAPTER 6 CONSTANTS
Underflow
) is one unit.
H
343
6