Mitsubishi Electric MELSEC iQ-R Series User Manual page 241

Error Error name
code
2470H Another CPU module
major error
2480H Multiple CPU error
2481H Multiple CPU error
24C0H System bus error
24C1H System bus error
24C2H System bus error
24C3H System bus error
Error details and cause
• A major error has been notified from
another CPU module.
• In the multiple CPU system, an error
has been detected in the CPU module
where "Stop" is set in the operation
mode setting parameter.
• Any CPU module other than CPU
No.1 is mounted in the inapplicable
slot.
(An error occurs in the CPU module
mounted in the inapplicable slot.)
• In the multiple CPU system, any CPU
module other than CPU No.1 was
disconnected from the base unit
during operation. Or, any CPU
module other than CPU No.1 or its
bus was reset.
• An error was detected on the system
bus.
• An error was detected on the system
bus.
• The I/O module or intelligent function
module is not mounted properly or
was removed during operation.
• An error was detected on the system
bus.
• An error was detected on the system
bus.
Corrective action
• Take measures to reduce noise.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the host CPU
module or another CPU module
where the error has been detected.
Please contact your local Mitsubishi
Electric sales office or representative.
• Check the detailed information
(system configuration information) of
the error by executing module
diagnostics using CW Configurator,
identify the error module, and
eliminate the error cause.
• Remove the CPU module from the
inapplicable slot.
• Check the mounting status and reset
status of the CPU modules other than
CPU No.1.
• Take measures to reduce noise.
• Reset the bus. 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
contact your local Mitsubishi Electric
sales office or representative.
• Take measures to reduce noise.
• Reset the bus. 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
contact your local Mitsubishi Electric
sales office or representative.
• Check the detailed information
(system configuration information) of
the error by executing module
diagnostics using CW Configurator
and check the module corresponding
to the displayed slot number.
• Check the connection status of the
extension cable.
• Take measures to reduce noise.
• Reset the bus. 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
contact your local Mitsubishi Electric
sales office or representative.
• Take measures to reduce noise.
• Reset the bus. 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
contact your local Mitsubishi Electric
sales office or representative.
33.1 Error Codes for Self-diagnostics
Stop/ Diagnostic
continue timing
Stop/continue Always
Stop Always
Stop Always
Stop At module
access
Stop At module
access
Stop Always
At module
access
Stop At module
access
33 ERROR CODE LIST
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33