Real Number Instructions; Comparing Single-Precision Real Numbers - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

7.9

Real Number Instructions

Comparing single-precision real numbers

LDE, ANDE, ORE
RnPCPU
RnCPU RnENCPU
(Process)
These instructions perform a comparison operation of a single-precision real number. (Devices are used as a normally open
contact.)
Ladder
LD
AND
OR
( is replaced by E=, E<>, E>, E<=, E<, E>=.)
FBD/LD
EN ENO
s1
s2
( is replaced by a combination of LDE_, ANDE_, or ORE_ and EQ, NE, GT, LE, LT, or GE.)
*1 The engineering tool with version "1.035M" or later supports the ST.
*2 EQ indicates =, NE indicates <>, GT indicates >, LE indicates <=, LT indicates <, and GE indicates >=.
■Execution condition
Instruction
LDE, ANDE, ORE
Setting data
■Description, range, data type
Operand Description
(s1) Comparison data or the start device where the comparison
data is stored
(s2) Comparison data or the start device where the comparison
data is stored
EN Execution condition
ENO Execution result
7 APPLICATION INSTRUCTIONS
704
7.9 Real Number Instructions
RnPCPU RnSFCPU RnSFCPU
(Redundant) (Standard) (Safety)
(s1) (s2)
(s1) (s2)
(s1) (s2)
Execution condition
Every scan
*1
ST
ENO:=LDE_(EN,s1,s2);
ENO:=ANDE_(EN,s1,s2);
ENO:=ORE_(EN,s1,s2);
( is replaced by any of the following: EQ, NE, GT, LE, LT, GE.)
*2
Range Data type
-126 128
|(s1)|<2
0, 2 Single-precision real
number
-126 128
|(s2)|<2
0, 2 Single-precision real
number
 Bit
 Bit
*2
Data type (label)
ANYREAL_32
ANYREAL_32
BOOL
BOOL