9.
9 -
1
MAINTENANCE FUNCTION
9
MAINTENANCE FUNCTION
9.1
Function List
The following shows the functions for maintenance.
For details on operations at GPP function, refer to the GX Developer Operating Manual or
SW IVD-GPPQ Operating Manual (Online).
Item
Description
Reference
Watchdog timer
Function that monitors watchdog errors due to CPU module
hardware or program errors.
Self-diagnostics function
Function whereby the QnACPU itself diagnoses whether or not
there are any errors.
Breakdown history
Function that stores the results of diagnosis in memory as a fault
history.
System protect
Function that sets whether reading/writing is enabled or disabled
for QnACPU files.
Keyword registration
Function that disables GPP function operations with respect to the
CPU module.
Online I/O module change
Function that allows replacement of I/O modules while the CPU
module is in the RUN status.
System display
Function that allows monitoring of the system configuration by
connecting a peripheral device capable of GPP functions.
LED indications
Function that indicates the operating state of the CPU module by
means of LEDs or the LED indicator on the front face of the CPU
module.
LED indication
Indicates whether CPU module operation is normal or abnormal.
Priority setting
Priority for LED indication is set depending on the error.
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 ...
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