8.2 Error Codes and System Alarm List
8 - 9
8
SYSTEM ALARM DISPLAY AND LIST
433
Failed to authenticate the access
point.
Check if the authentication method specified in the wireless LAN connection setting
is the same as that on the access point side.
434
GOT hardware version not supported
by wireless LAN connection
Use a GOT with hardware version B or later.
For how to check the hardware version, refer to the following.
➠ GOT2000 Series User's Manual (Hardware)
440
The label information has been
updated.
The label name resolution will be executed automatically.
Wait for the completion.
440
The label information has been
updated.
The label name resolution will be executed automatically.
Wait for the completion.
441
The specified CPU is updating the
label information.
The global label information of the specified CPU will be updated.
Wait for the completion.
448
PLC cannot handle as requested.
Correct devices.
A device outside the range of PLC CPU file registers and the buffer memory was
specified.
Correct the monitor device by setting file register of the PLC CPU.
449
Dedicated device is out of range.
Confirm device range.
• Set the address for the special function module in the GOT monitor available
range.
• Set the device in the GOT monitor available range.
450
Path has changed or timeout
occurred in redundant system.
The path has been switched or timeout occurred in the redundant system.
• Check the PLC CPU to know if the path has been switched.
• Check the cable connection status, the communication unit installation status, and
the PLC CPU status.
• This error may occur when the load of the PLC CPU becomes heavier when
accessing other stations. In such a case, transfer the data of the other stations to
the host station PLC CPU and monitor them at the host.
• Perform one of the following operations if the PLC scanning time is long: COM
instruction/Extension of END processing/Setting of the number of processing
times for general data/Data update batch processing.
451
Q redundant system settings and
current config. do not match.
Change the Q redundant setting in accordance with the actual Q redundant CPU
system.
460 Communication unit error
• Reset the power of the GOT.
• Replace the unit.
461
Communication error occurred
between option units and the GOT.
Check the following manual for the vibration resistance specifications and the
method of mounting the option units.
After that, reset the GOT power supply.
➠ GOT2000 Series User's Manual (Hardware)
470
No routing params. Communication
not established with specified sta.
Set routing parameters.
471
No IP address info. (Ethernet table)
of connection destination.
Set the network information about the destination for [Ethernet setting].
480
Communication channel not set. Set
channel number on Utility.
Channel (CH.No.1 to 4) to communicate with a controller is not set.
• After setting the Communication Settings on the GT Designer3, download it to the
GOT.
• Change the channel assignment in the Communication Setting on the utility.
*1
481
Communication unit not mounted to
the slot of active channel.
The interface where the channel (CH No.1 to 4) is set does not have a
communication unit installed.
• Install a communication unit to the interface where the channel (CH No.1 to 4) is
set.
• Change assignment of the channel (CH No.1 to 4) in the Communication Setting.
*1
482
Too many same units are mounted.
Confirm the no of units.
Units are mounted on the GOT exceeding the maximum number of mountable units.
Check the number of units, and remove unnecessary units.
*1
483
Simultaneous mounting of the units
are not allowed.
Two or more units which cannot be mounted on the GOT simultaneously are
mounted.
Check the mounted units, and remove unnecessary units.
*1
484
Unit mounted incorrectly. Move the
unit to correct position.
The unit is not mounted on the GOT in the correct position.
Confirm the mounting position of the unit.
*1
485
Too many units mounted on GOT.
Reduce units.
Units are mounted on the GOT exceeding the maximum number of mountable units.
Check the number of units, and remove unnecessary units.
*1
Error
code
Error message Action
Channel
No. storage
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