Mitsubishi MELSEC Q4ARCPU User Manual page 261

Programmable logic controller
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Error
Code
Error Contents and Cause
(SD0)
In a multiple CPU system, a data error
7004
occurred in communication between the
CPU modules.
• In a multiple CPU system, a faulty
CPU module was mounted.
• In a multiple CPU system, a CPU
module incompatible with the multiple
CPU system was mounted. (The CPU
module compatible with the multiple
CPU system was used to detect an
error.)
7010
• In a multiple CPU system, any of the
CPU No. 2 to 4 was reset with power
ON. (The CPU whose reset state was
cancelled was used to detect an
error.)
• In a multiple CPU system, the PC
CPU module used the QFB (bus
interface driver) of version 1.06 or
earlier.
*3
The Universal model QCPU except the Q02UCPU.
Corrective Action
• Check the system configuration to
see if modules are mounted in excess
of the number of I/O points.
• When there are no problems in the
system configuration, this indicates
the CPU module hardware is faulty.
(Contact your local Mitsubishi
representative, explaining a detailed
description of the problem.)
• Read the individual information of the
error using GX Developer, and
replace the faulty CPU module.
• Replace the CPU module with the
one compatible with the multiple CPU
system.
• Do not reset any of the No. 2 to 4
CPU modules.
• Use the PC CPU module that uses
the QFB of version 1.07 or later.
• Reset CPU No. 1 and restart the
multiple CPU system.
248
Corresponding
CPU
*1
Q00/Q01
QnU
*1
Q00/Q01
*1
Qn(H)
QnPH
QnU

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