App -
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APPENDICES
APPENDIX 9 QnACPU PROCESSING TIME
QnACPU processing time is explained below.
Appendix 9.1
Overview of QnACPU Scan Time
The QnACPU scan time comes to the total of the following values.
• I/O refresh processing
• Total values of instruction execution time
• END processing
(1) I/O refresh time
(a) I/O data refresh time between the following modules, which is mounted in the
QnACPU main base unit and extension base unit, and CPU modules
• Input module
• Output module
• Special function module
(b) I/O refresh time can be calculated in the following formula.
(I/O refresh time) = (I/O points 16) N1 + (Output points 16) N2
For N1 and N2, refer to the following table.
(2) Instruction execution time
(a) Processing time of each instruction used for QnACPU program
For the processing time of each instruction, refer to the following manual.
• QCPU (Q mode)/QnACPU Programming Manual (Common Instructions)
(b) Since interrupt/fixed-cycle execution type program have overhead time, add the
overhead time to the instruction execution time.
(3) END processing
(a) QnACPU common processing time except for above (1), (2)
(b) The following table shows values of the END processing time.
CPU Module
N1
N2
Q2ACPU(S1)
5.2 s
5.0 s
Q3ACPU
4.8 s
4.7 s
Q4ACPU
4.4 s
4.3 s
CPU Module
END Proc Time
With error check (SM1084 = OFF)
Q2ACPU
1.7ms
Q3ACPU
1.3ms
Q4ACPU
0.7ms
Without error check (SM1084 = ON)
Q2ACPU
1.2ms
Q3ACPU
0.9ms
Q4ACPU
0.5ms
Содержание Q2ACPU
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Страница 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Страница 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Страница 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Страница 269: ...16 11 16 POWER SUPPLY MODULE 2 Names and description of parts of the A62P A62PEU and A65P module ...
Страница 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Страница 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Страница 357: ...22 12 22 TROUBLESHOOTING ...
Страница 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Страница 417: ...App 20 APPENDICES 3 Shift instructions Classification Symbol Description n bit shift 1 bit shift 1 word shift ...
Страница 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Страница 432: ...App 35 APPENDICES 15 Clock instructions Classification Symbol Description Clock data read write ...
Страница 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Страница 538: ...App 141 APPENDICES APPENDIX 6 EXTERNAL DIMENSIONS Appendix 6 1 CPU Module 1 Q3ACPU Q4ACPU modules Unit mm inch ...
Страница 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Страница 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Страница 542: ...App 145 APPENDICES Appendix 6 3 Main Base Unit 1 A32B base unit 2 A32B S1 base unit Unit mm inch Unit mm inch ...
Страница 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Страница 567: ...MEMO ...
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