APPENDICES
APP − 49
MELSEC-A
(2) Basic Instructions
Table 2.2 Instruction Processing Time of Small Size, Compact CPUs
Processing Time (µs)
AnS A1SJH/A1SH A2SH (S1)
Direct Mode
Instruction Condition
Refresh
Mode
Other than
X, Y
X, Y
Refresh
Mode
Direct
Mode
Refresh
Mode
Direct
Mode
LD= 70 70 87 19.2 19.6 14.7 14.6
AND= 61 62 81 17.0 17.0 12.9 12.8
OR= 67 66 85 18.0 18.2 13.7 13.6
LDD= 133 134 119 36.4 37.1 27.5 27.5
ANDD= 124 125 210 33.6 34.3 25.3 25.5
ORD= 133 133 218 36.2 36.9 27.3 27.5
LD<> 69 69 86 19.4 19.2 14.5 14.5
AND<> 60 60 79 16.2 16.2 12.3 12.3
OR<> 66 66 84 17.4 17.6 13.1 13.0
LDD<> 131 132 217 35.6 35.6 26.9 26.7
ANDD<> 129 129 215 35.2 35.4 26.7 26.7
ORD<> 129 129 214 34.4 34.6 25.9 25.9
LD> 67 67 84 18.8 19.0 14.3 14.3
AND> 60 60 79 17.0 17.4 12.7 12.9
OR> 66 65 83 17.2 17.6 12.9 12.9
LDD> 133 133 219 36.4 36.2 27.5 27.3
ANDD> 131 131 217 38.5 36.4 27.1 27.1
ORD> 131 130 219 35.2 35.2 26.5 26.5
LD>= 71 71 88 19.6 19.6 14.9 14.8
AND>= 61 61 81 16.6 16.8 12.5 12.4
OR>= 69 68 86 18.6 19.0 14.1 13.8
LDD>= 137 137 222 37.8 38.0 28.3 28.2
ANDD>= 127 128 213 35.0 35.0 26.1 26.2
ORD>= 137 136 221 37.6 37.8 28.3 28.0
LD< 69 69 86 19.4 19.4 14.7 14.5
AND< 59 60 79 16.6 16.4 12.5 12.3
OR< 66 65 84 17.2 17.2 13.1 13.0
LDD< 133 133 219 36.2 36.6 27.3 27.5
ANDD< 131 131 217 36.0 36.4 27.1 27.1
ORD< 131 130 215 35.4 35.4 26.5 26.4
LD<= 71 71 88 19.8 19.6 14.9 14.7
AND<= 61 61 80 17.9 16.7 12.3 12.3
OR<= 69 68 86 18.6 18.9 13.9 13.9
LDD<= 137 136 222 37.8 37.8 28.5 28.3
ANDD<= 127 128 213 34.8 34.8 26.3 26.1
ORD<= 137 136 221 37.4 37.6 28.3 28.1
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