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Floating-point Math Instructions Section 3-15
Example conversions:
A signed binary value of 3 is converted to 3.0.
A signed binary value of –3 is converted to –3.0.
Flags
Precautions The content of S must contain signed binary data with a (decimal) value in the
range of –32,768 to 32,767.
3-15-4 32-BIT TO FLOATING: FLTL(453)
Purpose Converts a 32-bit signed binary value to 32-bit floating-point data and places
the result in the specified result words.
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Name Label Operation
Error Flag ER OFF
Equals Flag = ON if both the exponent and mantissa of the result are 0.
OFF in all other cases.
Negative Flag N ON if the result is negative.
OFF in all other cases.
FLTL(453)
S
R
S: First source word
R: First result word
Variations Executed Each Cycle for ON Condition FLTL(453)
Executed Once for Upward Differentiation @FLTL(453)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area S R
CIO Area CIO 0000 to CIO 6142
Work Area W000 to W510
Holding Bit Area H000 to H510
Auxiliary Bit Area A000 to A958 A448 to A958
Timer Area T0000 to T4094
Counter Area C0000 to C4094
DM Area D00000 to D32766
EM Area without bank E00000 to E32766
EM Area with bank En_00000 to En_32766
(n = 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
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