Mitsubishi Electric MELSEC iQ-R Series - Page 558

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36 ERROR CODES
36.4 List of Error Codes
1240H Inter-module
synchronization
processing error
• The execution interval of a
synchronous interrupt program has
exceeded the set value.
• The inter-module synchronous
interrupt program (I44) did not
complete within the inter-module
synchronization cycle.
Continue • Check the detailed information
(time information) of the error by
executing module diagnostics
using the engineering tool, check
the time setting, and take the
following actions:
(1) Check and correct the
processing of the interrupt
program (I44) so that it can be
completed within the period
specified in the fixed scan
interval setting.
(2) Check and correct the fixed scan
interval setting value.
Time
information
At interrupt
occurrence
1241H Inter-module
synchronization
processing error
• The execution interval of a
synchronous interrupt program has
exceeded the set value.
• A cycle where the inter-module
synchronous interrupt program (I44)
was not executed was detected.
Continue • Check and correct the interrupt
disable sections and the interrupt
programs with a high priority so
that the inter-module synchronous
interrupt program can be
executed.
 At interrupt
occurrence
1260H Multiple CPU
synchronization
processing error
• The execution interval of a
synchronous interrupt program has
exceeded the set value.
• The multiple CPU synchronous
interrupt program (I45) did not
complete within the multiple CPU
fixed scan communication cycle.
Continue • Check the detailed information
(time information) of the error by
executing module diagnostics
using the engineering tool, check
the time setting, and take the
following actions:
(1) Check and correct the processing
of the interrupt program (I45) so
that it can be completed within
the period specified in the fixed
scan interval setting.
(2) Check and correct the fixed scan
interval setting value.
Time
information
At interrupt
occurrence
1262H • The program execution section of a
synchronous interrupt program has
been exceeded.
• The multiple CPU synchronous
interrupt program (I45) did not
complete within the program
execution section.
1800H Annunciator ON • The annunciator (F) on status has
been detected.
Continue • Check the detailed error
information (annunciator
information) by executing module
diagnostics using the engineering
tool, and correct the program
corresponding to the displayed
annunciator number.
Error location
information
and
annunciator
information
At instruction
execution
1810H Operation
continuation
error
• The PALERT(P) instruction was
executed.
Continue • Check the detailed information
(error location information) of the
error by executing module
diagnostics using the engineering
tool and check the corresponding
program - one that outputs the
program error code.
Error location
information
and program
error
information
A
t
instruction
execution
1811H Control CPU
error
• An error has been detected in the
CPU module.
Continue • Check the error details by
executing module diagnostics
using the engineering tool and
take an action.
 Always
1812H Module error • Tracking communications could not
be performed successfully due to an
error in the redundant function
module.
Continue • The possible cause is malfunction
due to noise. Take measures to
reduce noise by checking the
distance of wires and cables, and
the grounding status of each
device.
• Execute a module communication
test. If the same error code is
displayed again, the possible
cause is a hardware failure of the
redundant function module.
Please consult your local
Mitsubishi representative.
 Always
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing