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12-68
12.1.8 Error code list (6000 to 6999)
The following shows the error messages from the error code 6000 to 6999, the contents and
causes of the errors, and the corrective actions for the errors.
Error
Code
(SD0)
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
6000
[FILE DIFF.]
In a redundant system, the control system and
standby system do not have the same programs
and parameters.
The file type detected as different between the two
systems can be checked by the file name of the
error common information.
• The program is different.
(File name = ********.QPG)
• The PLC parameters/network parameters/
redundant parameters are different.
(File name = PARAM.QPA)
• The remote password is different.
(File name = PARAM.QPA)
• The intelligent function module parameters are
different.
(File name = IPARAM.QPA)
• The device initial values are different.
(File name = ********.QDI)
• The capacity of each write destination within the
CPU for online pchange of multiple program
blocks is different.
(File name = MBOC.QMB)
(This can be detected from the standby system
of the redundant system.)
■Collateral information
• Common Information:File name
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset/
At tracking cable connection/At changing to
backup mode/At completion of write during RUN/
At system switching/At switching both systems
into RUN
• Match the programs and parameters of the
control system and standby system.
• Verify the systems by either of the following
procedures 1), 2) to clarify the differences
between the files of the two systems, then
correct a wrong file, and execute “Write to PLC“
again.
1) After reading the programs/parameters of
System A using
GX Developer or PX Developer, verify them
with those of System B.
2) Verify the programs/parameters of GX
Developer or PX Developer saved in the
offline environment with those written to the
CPU modules of both systems.
• When the capacity of each write destination
within the CPU for online change of multiple
program blocks is different between the two
systems, take corrective action 1) or 2).
1) Using the memory copy from control system
to standby system, copy the program memory
from the control system to the standby
system.
2) Format the CPU module program memories
of both systems. (For the capacity of each
write destination within the CPU for online
change of multiple program blocks, set the
same value to both systems.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnPRH
6001
[FILE DIFF.]
In a redundant system, the valid parameter drive
settings (SW2, SW3) made by the DIP switches are
not the same.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset/At tracking cable
connection/At operation mode change
Match the valid parameter drive settings (SW2,
SW3) by the DIP switches of the control system
and standby system.