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480
Troubleshooting
Section 9-2
Memory Errors
■
Reference Information
Probable cause
Possible remedy
Automatic transfer from the Memory Cassette
at startup failed because the required data is
not on the Memory Cassette.
Store the required data on the Memory Cas-
sette.
An error has occurred in memory. One or
more bits in A403 will turn ON to indicate
where the error has occurred. See below for
details.
• Memory Error Location
See below.
A403.00 is ON
A checksum error
has occurred in the
user program.
The power supply
was turned OFF
when backing up the
user program to
flash memory.
Transfer the user program again.
A403.04 is ON
A checksum error
has occurred in the
PLC Setup.
Transfer the PLC Setup again.
A403.07 is ON
A checksum error
has occurred in the
routing tables.
Transfer the routing tables again.
A403.09 is ON
The contents of a
Memory Cassette
could not be nor-
mally read to the
CPU Unit when
power was turned
ON.
Check to see if the files required for automatic
transfer at startup are present on the Memory
Cassette.
A403.10 is ON
There is a problem
with flash memory.
A hardware error has occurred in the CPU Unit.
Replace the CPU Unit.
Error flag
Memory Error Flag, A401.15
Error code (A400)
80F1
Error information
Memory Error Location, A403
Summary of Contents for CP1L-L14D Series
Page 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Page 523: ...490 Troubleshooting Unit Errors Section 9 4...
Page 531: ...498 Replacing User serviceable Parts Section 10 2...
Page 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...636 Index...
Page 671: ...638 Revision History...