Panasonic FP7 Series - ESCMP (String Compare: with Storage Area Size)

14.29 ESCMP (String Compare: With Storage Area Size)
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Ladder diagram
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List of operands
Operand Description
S1 String 1 to be compared (available range: 0 to 65534; for character constant: 0 to 256 characters)
S2 String 2 to be compared (available range: 0 to 65534; for character constant: 0 to 256 characters)
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Available devices (●: Available)
Operan
d
16-Bit device:
32-Bit
device:
Integer
Real
numbe
r
St
rin
g
Index
modifie
r
(Note 1)
W
X
W
Y
W
R
W
L
W
S
S
D
D
T
L
D
U
M
WI
W
O
TS
C
S
TE
C
E
IX K Ｕ H SF
D
F
" "
S1 ● ● ● ● ● ● ● ●
S2 ● ● ● ● ● ● ● ●
(Note 1) Only 16-bit devices can be modified. (Character constants cannot be specified.)
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Outline of operation
● This instruction compares the string specified by [S1] and the string specified by [S2]. The
comparison result is output to the system relays SRA to SRC (assessment flags for the
comparison instruction).
● The size of the storage area is not included in the judgment conditions.
● Comparison flags (system relays SRA to SRC) are operated as follows.
SRA SRB SRC
> = <
[S1] < [S2] OFF OFF ON
[S1] = [S2] OFF ON OFF
[S1] > [S2] ON OFF OFF
● If the numbers of characters to be compared are different, they are processed as follows.
[S1] [S2]
"ABCDE" = "ABCDE"
“ABCD” < "ABCDE"
"B" > "ABCDE"
14.29 ESCMP (String Compare: With Storage Area Size)
WUME-FP7CPUPGR-12 14-119