APPENDICES
APP
−
42
MELSEC-A
Appendix 2.1 Instruction Processing Time of Small Size, Compact CPUs
(1) Sequence instructions
Table 2.1 Instruction Processing Time of Small Size, Compact CPUs
Processing Time (
µ
s)
AnS A1SJH/A1SH
A2SH
(S1)
Instruction Condition
(Device)
R D R D R D
X
1.0 2.3 0.33 2.1 0.25 1.9
LD, LDI,
AND, ANI,
OR, ORI
Y, M, L, B, F, T, C
1.0
1.0
0.33
0.33
0.25
0.25
ANB
ORB
1.0 1.0 0.33 0.33 0.25 0.25
Unchanged
(OFF
→
OFF, ON
→
ON)
1.0 2.3 0.33 2.2 0.25 1.9
Y
Changed (OFF
→
ON, ON
→
OFF)
1.0 2.3 0.33 2.2 0.25 1.9
Unchanged
(OFF
→
OFF, ON
→
ON)
1.0 1.0 0.33 0.33 0.25 0.25
L, S, B
M (other than
special M)
Changed (OFF
→
ON, ON
→
OFF)
1.0 1.0 0.33 0.33 0.25 0.25
Special
M
37 37 9.6 9.5 7.2 7.2
Unexecuted
62 61 16.5 16.7 12.3 12.3
F
Executed
270 267 69.5 84.4 52.2 52.2
Instruction execution time
1.0
1.0
0.33
0.33
0.25
0.25
Unexecuted
0 0 0 0 0 0
After time out
11
11
7.2
9.6
20.0
18.0
K 24 24 12.0 12.8 22.0 22.0
T
Processing
time at the
execution
of END
instruction
Exe-
cuted
Added
D 30 30 21.6 24.0 24.0 23.6
Instruction execution time
1.0
1.0
0.33
0.33
0.25
0.25
Unexecuted
0 0 0 0 0 0
Uncounted 0 0 0 0 0 0
After
count
out
0 0 0 0 0 0
K 25 25 0.8 0.8 12.0 12.8
OUT
C
Processing
time at the
execution
of END
instruction
Exe-
ciuted
Counted
D 30 30 7.2 10.4 15.2 12.0
Unexecuted
1.0 2.3 0.33 2.1 0.25 1.9
Unchanged (ON
→
ON)
1.0 2.3 0.33 2.1 0.25 1.9
Y
Executed
Changed (OFF
→
ON) 1.0 2.3 0.33 2.1 0.25 1.9
Unexecuted
1.0 1.0 0.33 0.33 0.25 0.25
Unchanged (ON
→
ON)
1.0 1.0 0.33 0.33 0.25 0.25
M, L, S, B
Executed
Changed (OFF
→
ON) 1.0 1.0 0.33 0.33 0.25 0.25
Unexecuted
3.0 3.0 0.9 1.0 1.0 1.0
Special M
B
Executed
32.0
32.0 7.9 8.3 6.2 6.2
Unexecuted
2.7 3.2 0.9 1.4 1.0 1.0
SET
F
Executed
232 237 62.0 61.5 46.1 46.1
R: Refresh mode, D: Direct mode
Summary of Contents for MELSEC-A series
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