Mitsubishi MELSEC iQ-F FX5 series, Programming Manual, Page: 406 / 888

404
7 APPLICATION INSTRUCTION
7.7 Real Number Instruction
7.7
Real Number Instruction
Comparing single-precision real numbers
LDE

, ANDE

, ORE

These instructions perform a comparison operation between the single-precision real number in the device specified by (s1)
and the single-precision real number in the device specified by (s2). (Devices are used as a normally open contact.)
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
Processing details
• These instructions perform a comparison operation between the single-precision real number in the device specified by
(s1) and the single-precision real number in the device specified by (s2). (Devices are used as a normally open contact.)
• The following table lists the comparison operation results of each instruction.
• When an input value is set from the engineering tool, a rounding error may occur.
Ladder diagram Structured text
(E=, E<>, E>, E<=, E<, or E>= enters

.)
Not supported
Operand Description Range Data type Data type (label)
(s1) Comparison data or the head device number where the
comparison data is stored 0, 2
-126
<|(s1)|<2
128
Single-precision real number Single-precision real number
(s2) Comparison data or the head device number where the
comparison data is stored 0, 2
-126
<|(s2)|<2
128
Single-precision real number Single-precision real number
Operand Bit Word Double word Indirect
specification Constant Others
X, Y, M, L,
SM, F, B, SB U

\G

T, ST,
C, LC T, ST, C, D,
W, SD, SW, R U

\G

Z LC LZ K, H E $
(s1)
            
(s2)
            
Instruction symbol Condition Result Instruction symbol Condition Result
E= (s1)=(s2) Conductive state E= (s1)

(s2) Non-conductive state
E<> (s1)

(s2) E<> (s1)=(s2)
E> (s1)>(s2) E> (s1)<(s2)
E<= (s1)<(s2) E<= (s1)>(s2)
E< (s1)<(s2) E< (s1)>(s2)
E>= (s1)>(s2) E>= (s1)<(s2)
LD
AND
OR
(s1) (s2)
(s1) (s2)
(s1) (s2)