Hitachi NJI-350B - Manual (Page 90)

Chapter 5 Instruction Specifications
5-40
Item number Basic instructions-31 Name
Signed <> Relational box (SIGNED <> RELATIONAL
BOX)
Ladder format Condition code Processing time ( µ s) Remark
R7F4 R7F3 R7F2 R7F1 R7F0 Average Maximum
(See Function column) DER ERR SD V C
z z z z z
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 X Y
R,
L,
M TD, SS,
CU, CT
WX WY
WR,
WM
TC DX DY
DR,
DM
Co
n
sta
n
t
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
(s
1 S
<> s
2)
A
N
D
(s
1 S
<>
s2
)
OR
(s1
S <
>
s2
)