9 -
15
9.
MAINTENANCE FUNCTION
(4) Procedure when using special relays/special registers
(a) Use the following procedure when using special relays/special registers:
(b) Setting data in SD251 and turning ON/OFF SM251 can be done either by using
the sequence program or a peripheral device.
REMARK
1) Set the first two digits of the three-digit expression for the head I/O number of
the I/O module to be replaced in SD251 (replaced I/O module head I/O No.
storage register).
Example: Head I/O No. = 070
set number is H07
Head I/O No. = 170
set number is H17
2) Turn ON SM251 (I/O replacement flag).
3) Confirm that SM252 (replacement enabled flag) comes ON first, and replace
the designated I/O module.
4) Turn OFF SM251. (SM252 is turned OFF automatically.)
(a) Method when Using a Sequence Program
(b) Method when Using GPP function
A sequence program of the type shown below can be used to
replace a designated I/O module while the QnACPU is in the
"RUN" status.
*
The sequence program shown above can be written from GPP
function in the RUN status.
(1) Turn ON the input condition, and set the number of the I/O
module to be replaced in SD251 and turn ON SM251.
(2) Confirm that output Y** has come ON first, and replace the
designated I/O module.
(3) Turn OFF the input condition, and turn OFF SM251.
(This starts operation of the module after replacement.)
A designated I/O module can be replaced in the GPP function test
mode.
Any of RUN, STOP, or PAUSE status is possible for the QnACPU.
(1) Connect a peripheral device capable of GPP functions to the
QnACPU.
(2) In the test mode, set the first two digits of the head I/O number
of the module to be replaced in SD251.
(3) In the test mode, set (turn ON) SM251.
(4) In the monitor mode, confirm that SM252 has come ON , and
replace the designated I/O module.
(5) In the test mode, reset (turn OFF) SM251.
(This starts operation of the module after replacement.)
1) While SM251 is ON, the QnACPU does not perform the module verify and the
fuse blown check. After replacing the module, turn OFF SM251 immediately.
2) "100
H
" is stored in SD251 as the default value.
Procedure
Procedure
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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