Hitachi HIDIC MICRO-EH Applications Manual page 54

3. Basic instructions (relational box)
Ladder symbol
28
s1
==
s2
s1
==
s2
s1
==
s2
29
s1
S==
s2
s1
S==
s2
s1
S==
s2
30
s1
<>
s2
s1
<>
s2
s1
<>
s2
31
s1
S<>
s2
s1
S<>
s2
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.
Instruction
Process descriptions
name
LD = Relational When s1 = s2: Continuity
(s1== box When s1 ≠ s2:
s2)
Noncontinuity
AND
(s1==
s2)
OR
(s1==
s2)
LD Signed = When s1 = s2: Continuity
When s1 ≠ s2:
(s1 Relational
S== box
Noncontinuity
s2)
s1 and s2 are compared as
signed 32-bit binary.
AND
(s1
S==
s2)
OR
(s1
S==
s2)
LD <> When s1 = s2:
(s1< Relational Noncontinuity
>s2) box When s1 ≠ s2: Continuity
AND
(s1<
>s2)
OR
(s1<
>s2)
LD Signed <> When s1 = s2:
(s1 Relational Noncontinuity
S<> box When s1 ≠ s2: Continuity
s2)
s1 and s2 are compared as
signed 32-bit binary.
AND
(s1
S<>
s2)
OR
(s1
S<>
s2)
Chapter 5 Instruction Specifications
I/O types used
DER ERR SD
[Word]
WX, WY, WR,
WM,
Timer Counter
[Double word]
DX, DY, DR,
DM
Constant
DX, DY, DR,
DM
Constant
[Word]
WX, WY, WR,
WM,
Timer Counter
[Double word]
DX, DY, DR,
DM
Constant
DX, DY, DR,
DM
Constant
5-4
Process
time
Remarks
(µ s)
MICRO-EH
V C
27 5 *1
6 *2
7 Upper
8 case: W
35 Lower
case: DW
35 5 *2
6
7
8
26.8 5 *1
6 *2
7 Upper
8 case: W
34.5 Lower
case: DW
34.5 5 *2
6
7
8