Hitachi NJI-350B - Manual (Page 54)

Chapter 5 Instruction Specifications
5-4
3. Basic instructions (relational box)
R7F
4
R7F
3
R7F
2
R7F
1
R7F
0 Process
time
( µ s)
C
la
ssi
fica
tio
n
It
em
num
ber
Ladder symbol
In
str
ucti
on
sy
m
bol Instruction
name
Process descriptions I/O types used
DER ERR SD V C MICRO-EH
S
teps Remarks
R
ela
tio
na
l b
ox 28 LD
(s1==
s2) = Relational
box When s1 = s2: Continuity
When s1
≠ s2:
Noncontinuity
z z z z z 27 5
6
7
8 *1
*2
Upper
case: W
AND
(s1==
s2)
[Word]
WX, WY, WR,
WM,
Timer Counter
[Double word]
DX, DY, DR,
DM
Constant
35 Lower
case: DW
OR
(s1==
s2)
29 LD
(s1
S==
s2) Signed =
Relational
box When s1 = s2: Continuity
When s1
≠ s2:
Noncontinuity
s1 and s2 are compared as
signed 32-bit binary.
DX, DY, DR,
DM
Constant
z z z z z 35 5
6
7
8 *2
AND
(s1
S==
s2)
OR
(s1
S==
s2)
30 LD
(s1<
>s2) <>
Relational
box When s1 = s2:
Noncontinuity
When s1
≠ s2: Continuity
z z z z z 26.8 5
6
7
8 *1
*2
Upper
case: W
AND
(s1<
>s2)
[Word]
WX, WY, WR,
WM,
Timer Counter
[Double word]
DX, DY, DR,
DM
Constant
34.5 Lower
case: DW
OR
(s1<
>s2)
31 LD
(s1
S<>
s2) Signed <>
Relational
box When s1 = s2:
Noncontinuity
When s1
≠ s2: Continuity
s1 and s2 are compared as
signed 32-bit binary.
DX, DY, DR,
DM
Constant
z z z z z 34.5 5
6
7
8 *2
AND
(s1
S<>
s2)
OR
(s1
S<>
s2)
*1: In the case of word, it requires five steps for LD (s1†s2) and AND (s1†s2), and six steps for OR (s1†s2).
*2: In the case of double word, for LD (s1†s2) and AND (s1†s2), it requires five steps when the combination of s1 and s2 is I/O
and I/O, six steps when the combination is either I/O and constant or constant and I/O, and seven steps when the combination
is constant and constant. For OR (s1†s2), one step is added respectively.
s1
<>
s2
s1
<>
s2
s1
<>
s2
s1
==
s2
s1
==
s2
s1
==
s2
s1
S==
s2
s1
S==
s2
s1
S==
s2
s1
S<>
s2
s1
S<>
s2
s1
S<>
s2