12
TROUBLESHOOTING
12.3 Error Code List
12.3.4 Error code list (2000 to 2999)
12 - 119
9
EMC AND LOW
VOLTAGE
DIRECTIVES
10
LOADING AND
INSTALLATION
11
MAINTENANCE AND
INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
2220
• The device information (number of
points) backuped by the device data
backup function is different from the
number of device points of the PLC
parameter.
After this error occurred, perform
restore per power-on/reset until the
number of device points is identical to
the number of device points in the PLC
parameter, or until the backup data is
deleted.
• Set the number of device points at the
time of backup to the device point
setting in [PLC parameter]. Then,
turn ON from OFF power supply, or
reset the CPU and cancel reset.
• Delete the backuped data, and turn
ON from OFF power supply, or reset
the CPU and cancel reset.
QnU
2221
• The device information backuped by
the device data backup function is
incomplete. (Turning power supply
OFF or reset is suspected.)
Do not return the data when this error
occurs. Also, delete the incomplete
device information at the time of this
error occurrence.
Reset the CPU module and run it again. QnU
2300
• A memory card was removed without
switching the memory card in/out
switch OFF.
• The memory card in/out switch is
turned ON although a memory card is
not actually installed.
• Remove memory card after placing
the memory card in/out switch OFF.
• Turn on the card insert switch after
inserting a memory card.
QnA
Qn(H)
QnPH
QnPRH
QnU
2301
• The memory card has not been
formatted.
• Memory card format status is
incorrect.
• The QCPU file does not exist in the
Flash card.
• Format memory card.
• Reformat memory card.
• Write the QCPU file to the Flash card.
SRAM card failure is detected. (It
occurs when automatic format is not
set.)
• Writing parameters was performed
during setting file registers.
Format SRAM card after changing
battery of SRAM card.
• Write a parameter, which set the file
register at “Not available”, in CPU,
and then perform the operation.
QnU
2302
A memory card that cannot be used
with the CPU module has been
installed.
• Format memory card.
• Reformat memory card.
• Check memory card.
QnA
Qn(H)
QnPH
QnPRH
QnU
Error
Code
(SD0)
Error Contents and Cause Corrective Action
Corresponding
CPU
*3 The function version is B or later.
*4 The function version is A.
*5 The module whose first 5 digits of serial No. is 04101 or later.
*6 The module whose first 5 digits of serial No. is 09012 or later.
*7 The Universal model QCPU except the Q02UCPU.
*8 This applies to the QnUDE(H)CPU.
*9 The module whose first 5 digits of serial No. is 10042 or later.
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