Chapter 6 Basic Instructions; Comparison Operation Instructions; Comparing 16-Bit Binary Data - Mitsubishi MELSEC iQ-F FX5 series Programming Manual

6
BASIC INSTRUCTIONS
6.1

Comparison Operation Instructions

Comparing 16-bit binary data

LD(_U), AND(_U), OR(_U)
These instructions perform a comparison operation between the 16-bit binary data in the device specified by (s1) and the 16-
bit binary data in the device specified by (s2). (Devices are used as NO contacts.)
Ladder diagram
LD
AND
OR
( is to be replaced by any of the following: =(_U), <>(_U), >(_U), <=(_U),
<(_U), >=(_U).)
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) LD, AND, Comparison data or device where the
OR comparison data is stored
LD_U,
AND_U,
OR_U
(s2) LD, AND, Comparison data or device where the
OR comparison data is stored
LD_U,
AND_U,
OR_U
■Applicable devices
Operand Bit
X, Y, M, L, U\G T, ST,
SM, F, B, SB
 
(s1)
 
(s2)
(s1) (s2)
(s1) (s2)
(s1) (s2)
Word
T, ST, C, D, U\G
C, LC W, SD, SW, R
  
  
Structured text
Not supported
Range Data type
-32768 to +32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
-32768 to +32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
Double word Indirect
specification
Z LC LZ
   
   
6.1 Comparison Operation Instructions
Data type (label)
ANY16
ANY16_U
ANY16
ANY16_U
Constant Others
K, H E $
   
   
6 BASIC INSTRUCTIONS
145
6