746
7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
Processing details
• These instructions convert the 32-bit signed binary data in the device specified by (s) to a single-precision real number, and
stores the real number in the device specified by (d).
• A single-precision real number is processed in 32-bit single precision, and therefore the effective number of digits is 24 bits
when it is represented in binary and is about 7 digits when represented in decimal. For this reason, if the integer value
exceeds the range from -16777216 to 16777215 (24-bit binary value), an error occurs in the converted value. The operation
result is an integer value in which the 25th bit from upper bits is rounded off.
Operation error
There is no operation error.
(1) Rounded down.
(2) Rounded off.
(d)
b31
b16
(-123456.0)
2000H
C7F1H
b15
b0
D101, D100
(s)
b31
b16
(-123456)
1DC0H
FFFEH
b15
b0
D1, D0
∙∙∙
∙∙∙
∙∙∙
∙∙∙
SM402
(s)
(d)
M0
DMOVP
K-123456
D0
DINT2FLT
D0
D100
∙∙∙
∙∙∙
b31
b24 b23
b16
∙∙∙
∙∙∙
b31
b24 b23
b16
0 0 0
1
0
1 0 1 0
1
0
1 1 0 1 1
∙∙∙
∙∙∙
b15
b8b7
b0
1 1 1
1
0
0 0 0 1
0
1
0 1 1 1 0
0 0 0
0
1
1 1 0 0
1
0
1 0 1 0 1
∙∙∙
∙∙∙
b15
b8b7
b0
0 1 0
0
0
0 0 1 0
1
1
1 0 1 1 1
222030032
372588928
(1)
(2)
(1)
(2)
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......