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12.3 Error Code List
12.3.11 Error codes returned to request source during communication with CPU module
12
TROUBLESHOOTING
Table12.12 Error code
Error code
(Hexadecimal)
Error item Error details Corrective action
4200
H
Online module
change-related
error
The requested processing cannot be
performed since online module change is not
enabled in the setting of the multiple CPU
setting parameter.
Do not make a request where an error occurred, or make
a request again after enabling online module change in
the setting of the multiple CPU setting parameter.
4201
H
The requested processing cannot be
performed since online module change is
enabled in the setting of the multiple CPU
setting parameter.
Do not make a request where an error occurred, or make
a request again after disabling online module change in
the setting of the multiple CPU setting parameter.
4202
H
The requested processing cannot be
performed since an online module change is
being performed.
Make a request again after completion of the online
module change.
4203
H
The module mounted on the main base unit
cannot be replaced online since the extension
base unit is mounted.
Take following procedures to replace the module
mounted on the main base unit.
• Switch the system where the target module to be
replaced is mounted to the standby system.
• Turn OFF power supply of the standby system.
• Replace the target module.
4204
H
The specified module of the extension base
unit cannot be replaced online since it is
connected to the standby system.
Change the connection destination to the control system
and perform the online module change again. (This
corrective action can be made to the module mounted on
the extension base unit only.)
4210
H
The specified head I/O number is outside the
range.
When making a request, specify the head I/O number of
the module that will be changed online.
4211
H
An online module change request is abnormal. Check the command used to make a request.
4212
H
An online module change is already being
made for other equipment.
Make a request again after completion of the online
module change, or continue after changing the
connection path.
4213
H
The specified head I/O number differs from the
one registered for online module change.
When making a request, specify the head I/O number of
the module being changed online.
4214
H
The specified module differs from the one
changed online.
Make a request again after mounting the module that is
the same as the one changed online.
4215
H
The specified module does not exist.
When making a request, specify the head I/O number of
the module that will be changed online, or make a
request again after mounting the module.
4216
H
The specified module is faulty. Make a request again after changing the module.
4217
H
There is no response from the specified
module.
Continue the online module changing operation.
4218
H
The specified module is incompatible with
online module change.
Do not make a request where an error occurred, or make
a request again to the module compatible with online
module change.
4219
H
The specified module is mounted on the
extension base unit of the type that requires
no power supply module.
Do not make a request to any modules mounted on the
extension base unit of the type that requires no power
supply module and the main base unit.
421A
H
The specified module is not in a control group.
Make a request to the CPU module that controls the
specified module.
421B
H
An error occurred in the setting of the initial
setting parameter of the intelligent function
module.
Resume processing after checking the contents of the
intelligent function module buffer memory.
421C
H
Cannot be executed as the parameter file has
been rewritten.
Operation cannot be performed. Operation is interrupted.
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