Converting Real To Lreal - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

12.32

Converting REAL to LREAL

REAL_TO_LREAL
This function converts a value from REAL data type to LREAL data type.
Structured text
d:=REAL_TO_LREAL(s);
Setting data
■Description, type, data type
Argument Description
s (IN) Input
d Output
Processing details
■Operation processing
• This function converts the value input to (s) from REAL data type to LREAL data type, and output the converted value from
(d).
(s)
1234.0
REAL
• Input a REAL data type value to (s).
• The number of significant digits is about seven because a REAL data type value is processed in 32-bit single precision.
• If the integer value exceeds the range of -16777216 to 16777215, a rounding error occurs in the converted value.
■Operation result
The operation processing is performed. The operation result is output from (d).
Operation error
Error code Description
3402H The data input to (s) is -0 or out of the following range.
128 -126
-2 <(s)≤-2
(E-3.40282347+38 to E-1.17549435-38, 0, E1.17549435-38 to E3.40282347+38)
3403H The data output from (d) exceeds the following range. (An overflow has occurred.)
128
|(d)|<2
(d)
1234.0
LREAL
-126 128
, 0, 2
≤(s)<2
Type Data type
Input variable REAL
Output variable LREAL
12 TYPE CONVERSION FUNCTIONS
12.32 Converting REAL to LREAL
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