Справочник Пользователя для Mitsubishi Electronics QCPU

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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.

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.