12.
12 -
22
OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU
12.1.5 Initial processing
Initial processing is the pre-processing for executing sequence operations.
The QnACPU executes it only once in the case of the CPU module status described in the
following table.
Once the initial processing is completed, the CPU module is placed into the operation
status set by the RUN/STOP switch.
: Executed : Not executed
*1
Indicates the case that the CPU enters RUN status without being reset after changing a
parameter or program in STOP status.
(The RUN/STOP key switch is operated as follows: STOP
RUN
(RUN LED is
flickering.)
STOP
RUN.)
Note that the instructions for conversion into pulse (PLS, P) may not function properly since
the previous information may not be retained depending on the program change (write during
RUN in STOP status, or write to PLC).
12.1.6 Refresh processing of I/O module
Refresh processing of I/O modules is executed.
(Refer to the QnACPU Programming Manual (Fundamentals).)
Item
Status of the CPU module
At Power ON
At RESET
STOP
RUN
Status*1
Initialization of I/O module
Initialization of devices outside latched range
(Bit device: OFF, Word device: 0)
Self-diagnostics
Auto allocation of module I/O No.
Setting MELSECNET/10 network info and MELSECNET(II)/B
data link info
Setting CC-Link info and MELSECNET/MINI-S3 info
Setting initial device values
Booting from memory card
Содержание Q2ACPU
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Страница 269: ...16 11 16 POWER SUPPLY MODULE 2 Names and description of parts of the A62P A62PEU and A65P module ...
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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 ...
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