734
APPX
Appendix 1 Error Codes
2520H Invalid interrupt • Even though an interrupt was
requested, there is no interrupt
factor.
Stop • Take measures to reduce noise.
• Reset the CPU module and run it
again. If the same error code is
displayed again, the possible cause is
a hardware failure of the CPU module,
base unit, or module (I/O module or
intelligent function module) connected.
Please consult your local Mitsubishi
representative.
System
configuration
information
At interrupt
occurrence
2521H
2522H Invalid interrupt • An interrupt was requested from
the module with no interrupt
pointer setting.
Stop • Check and correct the interrupt pointer
setting in the module parameters.
• Take measures so that no interrupt is
requested from the module with no
interrupt pointer setting.
• Check and correct the interrupt setting
in the buffer memory of the intelligent
function module.
• Correct the BASIC program executed
in the QD51.
System
configuration
information
At interrupt
occurrence
2610H Inter-module
synchronization
signal error
• An execution interval error of the
synchronization interrupt program
has been detected.
• An inter-module synchronization
error has been detected.
Stop/
continue
• Take measures to reduce noise.
• Reset the CPU module and run it
again. If the same error code is
displayed again, the possible cause is
a hardware failure of the CPU module,
base unit, extension cable, or module
(I/O module or intelligent function
module) connected. Please consult
your local Mitsubishi representative.
Always
2611H • An inter-module synchronization
error has been detected.
Stop System
configuration
information
At power-on,
at RESET, at
END
instruction
execution
2630H Multiple CPU
synchronization
signal error
• An execution interval error of the
synchronization interrupt program
has been detected.
• A multiple CPU synchronization
error has been detected.
Stop/
continue
• Take measures to reduce noise.
• Reset the CPU module and run it
again. If the same error code is
displayed again, the possible cause is
a hardware failure of the CPU module
or base unit. Please consult your local
Mitsubishi representative.
Always
2631H • A multiple CPU synchronization
error has been detected.
Stop System
configuration
information
At power-on,
at RESET, at
END
instruction
execution
2800H I/O number or
network number
specification
error
• The specified I/O number is out of
range (other than 0 to FFH, 3E0 to
3E3H).
Stop/
continue
• Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
Error location
information
At instruction
exe
cution
2801H • The I/O number of the module that
does not exist was specified.
Stop/
continue
Error location
information,
system
configuration
information
At instruction
execution
2802H I/O number or
network number
specification
error
• The I/O number of the module that
does not support the instruction
was specified.
• The dedicated instruction
specified in the program cannot
be executed in the specified
module or mode.
Stop/
continue
• Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
• Check the execution propriety
(including support status and execution
mode) of the dedicated instruction,
referring to the manual for the target
module.
Error location
information,
system
configuration
information
At instruction
execution
2803H I/O number or
network number
specification
error
• The I/O number of the module that
cannot be specified in the
instruction was specified.
Stop/
continue
• Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
Error location
information,
system
configuration
information
At instruction
execution
2804H • The specified network number is
out of range (other than 1 to 239).
2805H • The network number that does not
exist was specified.
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing