Mitsubishi QJ71LP21 Reference Manual page 265

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
The intelligent function module/special
function module was accessed in the
program, but there was no response.
1402
The special function module was
accessed during the execution of a
FROM/TO instruction set, but there
was no response.
(When an error is generated, the
program error location corresponding
to the individual information is stored.)
• There was no response from the
intelligent function module when the
END instruction is executed.
• An error is detected at the intelligent
function module.
• The I/O module (intelligent function
module) is nearly removed,
completely removed, or mounted
during running.
• There was no response from the
1403
intelligent function module/special
function module when the END
instruction is executed.
• An error is detected at the intelligent
function module/special function
module.
• The I/O module (intelligent function
module/special function module) is
nearly removed, completely
removed, or mounted during
running.
*1 Characters in parentheses ( ) indicate the special register numbers where individual information is being
:
stored.
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Corrective Action
This suggests the intelligient function
module/special function module , CPU
module and/or base unit is expecting a
hardware fault (Contact your local
Mitsubishi representative.)
The CPU module, base unit and/or the
special function module that was
accessed is experiencing a hardware
fault.(Contact your local Mitsubishi
representative.)
The CPU module, base unit and/or the
intelligent function module that was
accessed is experiencing a hardware
fault. (Contact your local Mitsubishi
representative.)
The CPU module, base module and/or
the intelligent function module/special
function module that was accessed is
experiencing a hardware fault.
(Contact your local Mitsubishi
representative.)
MELSEC-Q
Corresponding
CPU
QCPU
Rem
QnA
Q00J/Q00/Q01
Qn(H)
QnPH
QnPRH
Rem
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