Chapter 5 Instruction Specifications
5-40
Item number Basic instructions-31 Name Signed <> Relational box (SIGNED <> RELATIONAL
BOX)
Ladder format Condition code Processing time (µs) Remark
R7F4 R7F3 R7F2 R7F1 R7F0 Average Maximum
(See Function column) DER ERR SD V C
zzzzz
Command format Number of steps 34.5 50
LD (s1 S<> s2) Condition Steps
AND (s1 S<> s2) Double word (See Cautionary notes)
OR (s1 S<> s2)
Bit Word Double word
Usable I/O XY
R,
L,
M
TD, SS,
CU, CT WX WY
WR,
WM TC DX DY
DR,
DM
Constant
Other
s1 Relational number 1 {{{{
s2 Relational number 2 {{{{
Function
[Ladder format] s1
S<>
s2
s1
s2
s1
s2
S<> S<>
z Compares s1 and s2 as signed double-word numbers, and
if s1 is equals to s2, it enters the noncontinuity status (off) and
if s1 is not equal to s2, enters the continuity status (on).
z s1, s2 – 2147483648 to + 2147483647 (decimal)
H80000000 to H7FFFFFFF (hexadecimal)
b31 b0
Sign bit: 0 - Positive; 1 - Negative
Cautionary notes
[Number of steps]
Double word LD, AND (s1S<>s2) OR (s1S<>s2)
I/O I/O 5 steps 6 steps
I/O Constant 6 steps 7 steps
Constant I/O 6 steps 7 steps
Constant Constant 7 steps 8 steps
Program example
R004
DR0000
S < >
DR0002
LD (DR0000 S < > DR0002)
OUT R004
Program description
z When DR0000 ≠ DR0002, R004 turns on (signed).
LD (s1 S <> s2)
AND (s1 S <> s2)
OR
(
s1 S <> s2
)