15.
15 -
5
HARDWARE SPECIFICATIONS OF CPU MODULES
15.3 Relationship between Switch Operations and LEDs/LED Display
(1) Writing programs with the CPU module in STOP state
To write a program to the CPU module while it is in the STOP state, use the following
procedure.
*1
If Remote STOP
RUN is performed for the CPU module, the CPU will be in RUN status, not
in "PROG.CHECK" status.
1) Set the RUN/STOP key switch to STOP.
RUN LED
:OFF
.........CPU module in STOP state
Program write (program write
executed)
Display on Q3ACPU, Q4ACPU
:OFF
2) Set the RUN/STOP key switch to RESET
RUN LED
:OFF
.........CPU module in RESET state
Display on Q3ACPU, Q4ACPU
:OFF
3) Set the RUN/STOP key switch to STOP
RUN
RUN LED
:ON
.........CPU module in RUN state
Display on Q3ACPU, Q4ACPU
:OFF
POINT
(1) For the QnACPU, after writing a program (except for writing to PLC during
RUN), set the CPU module to RESET and then to RUN.
(2) If the key switch is set to RUN without resetting, the CPU module will remain
in STOP state displaying as follows:
After this occurs, the CPU can be placed into RUN state by setting the RUN/
STOP key switch to RESET.
In this case, internal CPU module data such device data are cleared.
(3) To prevent the internal CPU module information from being cleared, switch
the RUN/STOP key switch STOP
RUN again without resetting.
RUN LED
:Flashing
Display on Q3ACPU, Q4ACPU
:Displays "PRG.CHECK!!"
*1
Summary of Contents for Q2ACPU
Page 1: ......
Page 2: ......
Page 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Page 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Page 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Page 357: ...22 12 22 TROUBLESHOOTING ...
Page 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Page 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Page 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Page 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Page 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Page 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Page 567: ...MEMO ...
Page 569: ......
Page 570: ......