Mitsubishi Electric QJ71LP21 Reference Manual page 255

8 TROUBLESHOOTING
Error Code
Error Contents and Cause
*1
(SD0)
In a multiple CPU system, a CPU module incompatible
with the multiple CPU system is mounted.
I/O module information power ON is changed.
• I/O module (or intelligent function module) is not
installed properly or installed on the base unit.
2000
I/O module information power ON is changed.
• I/O module (or intelligent function module/special
function module) not installed properly or installed on
the base unit.
During operation, a module was mounted on the slot
2001
where the empty setting of the CPU module was made.
• More than applicable number of extension base units
have been used.
2010
• When a GOT was bus-connected, the CPU module
was reset while the power of the GOT was OFF.
2011
The QA B or QA1S
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being stored.
*12 : This applies to the CPU of function version B or later.
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Replace the CPU module incompatible with the multiple
CPU system with a CPU module compatible with the
multiple CPU system.
Read the error common information at the GX Developer,
and check and/or change the module that corresponds to
the numerical value (module number) there.
Alternatively, monitor special registers SD150 - SD157
using GX Developer, and check and replace the module
where the bit of its data is "1".
During operation, do not mount a module on the slot
where the empty setting of the CPU module was made.
B was used as the base unit. Do not use the QA
Corrective Action
• Read the common information of the error using the
peripheral device, and check and/or change the module
that corresponds to the numerical value (module
number) there.
• Alternatively, monitor the special registers SD1400 to
SD1431 at a peripheral device, and change the fuse at
the output module whose bit has a value of "1".
• When a GOT is bus-connected to the main base unit or
extension base unit, check the connection status of the
extension cable and the earth status of the GOT.
• Use the allowable number of extension base units or
less.
• Power on the PLC and GOT again.
B or QA1S B as the base unit.
MELSEC-Q
Corresponding CPU
*12
Qn(H)
QnPH
Q00J/Q00/Q01
QnA
Qn(H)
QnPH
QnPRH
Rem
*12
Q00J/Q00/Q01
*12
Q00J/Q00/Q01
QnPRH
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