Mitsubishi Q01CPU User Manual

12
TROUBLESHOOTING
12.3 Error Code List
12.3.11 Error codes returned to request source during communication with CPU module
12 - 241
9
EMC AND LOW VOLTAGE DIRECTIVES
10
LOADING AND INSTALLATION
11
MAINTENANCE AND INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
Table12.12 Error code
Error code
(Hexadecimal)
Error item Error details Corrective action
4253
H
Redundant
system-related
error
Since a communication error or system
switching occurred during online program
change to the control system CPU module,
online program change to the standby CPU
module cannot be executed.
Since a communication error or system switching
occurred during execution of online program change to
the control system CPU module, online program change
redundant tracking was suspended.
Execute online program change again after confirming
that communication with the control system CPU module
and standby system CPU module can be normally made.
When long time is taken for communication between GX
Developer and control system CPU module or standby
system CPU module, the error may be avoided by
adjusting SD1710 (standby system online program
change start waiting time).
4254
H
The command cannot be executed since an
error was detected in the tracking
communication hardware.
The tracking cable may not be connected correctly, or
the tracking communication hardware of the CPU
module may be faulty. Check the connection status of the
tracking cable.
If the condition is not restored to normal after the cable
connection status is corrected, the possible cause is the
hardware fault of the CPU module.
4255
H
The command cannot be executed since
tracking communication is being prepared.
Tracking communication is being prepared when it is
connected. Execute the operation again after a while
(about 1 second).
4256
H
The command cannot be executed since a
time-out error occurred in tracking
communication.
The tracking cable may not be connected correctly, or
the tracking communication hardware of the CPU
module may be faulty. Check the connection status of the
tracking cable.
If the condition is not restored to normal after the cable
connection status is corrected, the possible cause is the
hardware fault of the CPU module.
4257
H
The command cannot be executed since the
host system CPU module is in a watchdog
timer error or CPU module hardware fault
status.
The command cannot be executed since the host system
is in a watchdog timer error or CPU module hardware
fault status. Execute again after checking the host
system status.
4258
H
Operation mode being changed (from backup
mode to separate mode)
Execute again after completing the operation mode
change by changing the status from STOP to RUN using
the RUN/STOP switch of the CPU module whose RUN
LED is flickering or remote operation.
4259
H
Operation mode change is being executed in
the communication route different from the
current one from the other peripheral device.
Execute again in the same communication route as the
one where the operation mode change was executed.
425B
H
Although the communication was made via the
intelligent function module mounted on the
extension base unit, the combination of the
connection destination specification
(Redundant CPU specification) and the
command is unsupported.
Change the combination of the connection destination
specification and the command to the supported
combination.
425C
H
System switching cannot be made since the
module mounted on the extension base unit is
being replaced online.
Switch systems after the online module change has been
completed.
425D
H
Operation mode cannot be changed since the
module mounted on the extension base unit is
being replaced online.
Change the operation mode after the online module
change has been completed.

Mitsubishi Q01CPU Specifications

General

Brand	Mitsubishi
Model	Q01CPU
Category	Controller
Language	English