
171
CHAPTER 3 CPU MODULE FUNCTIONS
3
3.
30
C
P
U Module Change F
unc
tion wi
th
SD Mem
o
ry Card
3.
30.
1
Ba
ckup t
o
SD mem
o
ry
car
d
Turn on the backup start setup contact and then the backup start contact. Data are not backed up when only
the backup start contact is on.
*1
Since SM691 (Backup start preparation status flag) is on, data can be backed up again by turning off and then on the
backup start contact.
Turn on the backup start setup contact.
Preparation for backup:
1) Set the CPU module to the STOP status.
2) Set the SD memory card so that the card
can be removed from the CPU module.
1) Check that the preparation for backup is
completed by the following methods.
Check the LEDs.
Check the special relay and special register.
(a) SM691 is on.
(b) 2h is stored in SD690.
2) Remove the SD memory card.
3) Insert an SD memory card for
storing backup data.
4) Turn on the backup start contact.
Back up data.
Check that the backup is completed by
the following methods.
Check the LEDs.
Check the special relay and special register.
(a) SM691 is on.
(b) 4h is stored in SD690.
Check for backup error*
1
.
Check the LEDs.
Check the special relay and special
register.
(a) SM691 is on.
(b) FFh is stored in SD690.
(c) An error cause is stored in SD689.
: Operation by the CPU module
: Operation by the user
Содержание L02CPU
Страница 1: ......
Страница 2: ......
Страница 13: ...11 Memo ...
Страница 78: ...76 Memo ...
Страница 226: ...224 Memo ...
Страница 317: ...315 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 318: ...316 To the next page ...
Страница 319: ...317 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 320: ...318 To the next page ...
Страница 321: ...319 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 322: ...320 To the next page ...
Страница 323: ...321 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 324: ...322 To the next page ...
Страница 325: ...323 APPENDICES APPEN DIX Appendix 4 Character Codes Available in the Display Unit To the next page ...
Страница 326: ...324 To the next page ...
Страница 335: ...333 Memo ...
Страница 339: ......