Chapter 5 Instruction Specifications
5-38
Item number
Basic instructions-29
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
35
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
C
o
ns
ta
nt
Other
s1 Relational number 1
{
{
{
{
s2 Relational number 2
{
{
{
{
Function
[Ladder format]
s1
S==
s2
s1
S==
s2
s1
S==
s2
z
Compares s1 and s2 as signed double-word numbers, and
if s1 is equals to s2, it enters the continuity status (on) and
if s1 is not equal to s2, enters the noncontinuity status(off).
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
R002
DR0000
S = =
DR0002
LD (DR0000 S== DR0002)
OUT R002
Program description
z
When DR0000 = DR0002, R002 turns on (signed).
LD
(s
1 == s
2)
A
N
D
(s
1 ==
s2
)
OR
(s1
=
=
s2
)
Summary of Contents for HIDIC MICRO-EH
Page 1: ...HITACHI PROGRAMMABLE CONTROLLER APPLICATION MANUAL NJI 350B X ...
Page 12: ...MEMO ...
Page 14: ...Chapter 1 Features 1 2 MEMO ...
Page 50: ...Chapter 4 Product lineup and wiring 4 18 MEMO ...
Page 196: ...Chapter 5 Instruction Specifications 5 146 ...
Page 263: ...Chapter 11 Communication Specifications 11 10 MEMO ...
