720
APPX
Appendix 1 Error Codes
2022H Module
configuration
error
• A power supply module other than
the redundant power supply
module has been mounted on the
redundant power supply base unit.
Stop • Mount only the redundant power
supply module. If the same error code
is displayed again, the possible cause
is a hardware failure of the power
supply module, CPU module, or base
unit. Please consult your local
Mitsubishi representative.
System
configuration
information
At power-on,
at RESET
2040H CPU module
configuration
error
• The number of CPU modules set
in the system parameters ("I/O
Assignment Setting") differs from
the number of CPU modules
actually mounted.
• The CPU module is mounted on
the slot different from the one
specified in the system
parameters (I/O assignment
setting).
• Two or more Safety CPUs are
mounted.
Stop • Correctly set the number of CPU
modules (including the empty setting)
in the system parameters in
accordance with the number of CPU
modules actually mounted.
• Correctly set the system parameters so
that the setting and actual CPU module
mounting status will be the same.
• Mount only one Safety CPU.
System
configuration
information
At power-on,
at RESET
2041H CPU module
configuration
error
• The CPU module is not mounted
on the slot that is set for the CPU
module in the system parameters
("I/O Assignment Setting").
• The CPU module is mounted on
the slot that is set for empty in the
system parameters ("I/O
Assignment Setting").
• An I/O module or intelligent
function module is mounted
between the CPU modules.
• Arrangement of CPU modules
mounted is not appropriate to
configure a multiple CPU system.
Stop • Check and correct the I/O assignment
setting in the system parameters.
• Correctly set the number of CPU
modules (including the empty setting)
in the system parameters in
accordance with the number of CPU
modules actually mounted.
• Remove the I/O module or intelligent
function module mounted between the
CPU modules.
System
configuration
information
At power-on,
at RESET
2043H CPU module
configuration
error
• The CPU module is mounted on
the inapplicable slot.
Stop • Mount the CPU module on the
applicable slot (CPU slot or I/O slot 0 to
6).
• Remove the CPU module from the
inapplicable slot.
System
configuration
information
At power-on,
at RESET
2044H CPU module
configuration
error
• The host CPU No. set in the
system parameters ("I/O
Assignment Setting") differs from
the one determined by the
mounting position of the CPU
module.
Stop • Re-set the host CPU No. in the system
parameters in accordance with the
mounting position of the CPU module.
System
configuration
information
At power-on,
at RESET, at
STOP RUN
sta
te
2046H CPU module
configuration
error
• Another CPU module was
accessed, but there was no
response.
Stop • Check and correct the I/O assignment
setting in the system parameters.
• 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 another CPU
module. Please consult your local
Mitsubishi representative.
System
configuration
information
Always
2050H CPU module
configuration
error
• An unsupported CPU module is
mounted.
Stop • Remove the unsupported CPU
module. If all the CPU modules are
supported, the possible cause is a
hardware failure of the CPU module or
base unit. Please consult your local
Mitsubishi representative.
System
configuration
information
At power-on,
at RESET
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing