8 APPLICATION INSTRUCTION
8.8 Character String Operation Instruction
431
8
8.8
Character String Operation Instruction
Comparing character strings
LD$
, AND$
, OR$
These instructions perform a comparison operation between the character string data in the device specified by (s1) and later
and the character string data in the device specified by (s2) and later. (Devices are used as a normally open contact.)
*1 Supported by engineering tool version "1.035M" and later.
*2 EQ is =, NE is <>, GT is >, LE is <=, LT is <, and GT is >=.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
*1 T, ST, C cannot be used.
Ladder diagram
Structured text
("=", "<>", ">", "<=", "<", ">=" enters
.)
ENO:=LDSTRING_
(EN,s1,s2);
ENO:=ANDSTRING_
(EN,s1,s2);
ENO:=ORSTRING_
(EN,s1,s2);
("EQ", "NE", "GT", "LE", "LT", "GE" enters
FBD/LD
("_EQ", "_NE", "_GT", "_LE", "_LT", "_GE" enters
Operand
Description
Range
Data type
Data type (label)
(s1)
Comparison data or head device number where the comparison
data is stored
Character string
ANYSTRING_SINGLE
(s2)
Comparison data or head device number where the comparison
data is stored
Character string
ANYSTRING_SINGLE
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s1)
(s2)
LD$
AND$
OR$
(s1)
(s2)
(s1)
(s2)
(s1)
(s2)
EN
ENO
LDSTRING
s1
s2
EN
ENO
ANDSTRING
s1
s2
EN
ENO
ORSTRING
s1
s2
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
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