18
TROUBLESHOOTING
18.4 Error Code and Error Message Lists
18.4.3 Actions by error messages
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MULTIPLE CPU
SYSTEM
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APPENDICESINDEX
(3) Error messages on MELSECNET/H utility
The following indicates the error messages displayed on the MELSECNET/H utility
and their corrective actions.
(To next page)
Table18.23 Error messages on MELSECNET/H utility
Error message Corrective action
A communication error has occurred.
Check the power supply, cables, network setting of the connection
target.
Retry (e.g. start monitor, connection target setting) after checking the
following.
• Check if the target C Controller module is operating.
• Check if the Ethernet cable is connected.
• Check if the specified IP address or host name is correct.
• Using the C Controller setting utility, set the priority setting of the
utility communication task to a smaller value or default.
• Using the C Controller setting utility, change the priority setting of
the utility communication task to a smaller value or default.
( Section 9.2.6 (2)(d))
• Check the line state.
If the line is congested, a communication error (timeout error)
tends to occur (a monitor tends to stop during monitoring).
• Check that the development environment (personal computer) is
not starting up.
A communication initialization error has occurred.
Make the network setting of the development environment (personal
computer).
Make the network setting of the development environment (personal
computer).
( Section 5.6)
A MELSECNET/H module is not mounted.
Please execute a monitor after mounting.
• Check if a MELSECNET/H module is mounted.
• Execute monitoring after mounting a MELSECNET/H module.
An error occurred in communication with the C Controller module.
Error code : XX
Take corrective actions according to the error code. ( Error list
of bus interface function HELP/MELSEC data link function HELP)
An error occurred in communication with the MELSECNET/H
module of XX slot.
Error code : YY
Take corrective actions according to the error code. (
Error list
of bus interface function HELP/MELSEC data link function HELP)
An item to clear is not chosen. Select the error history item to be cleared.
As a result of the communication test, the specified target was not
found.
Check the power supply, cables, network setting of the connection
target and reexecute the communication test.
Retry after checking the following.
• Check if the target C Controller module is operating.
• Check if the Ethernet cable is connected.
• Check if the specified IP address or host name is correct.
• Check that the development environment (personal computer) is
not starting up.
Can not set all stations as "Reserved stations".
Please change any of the station to other than reserved station.
Change one or more reserved station setting(s) to normal station
setting(s) in the Network range assignment.
Can not short hours. Set the hour of the system timer.
Can not short minutes. Set the minute of the system timer.
Can not short seconds. Set the second of the system timer.
Concurrent activations of the MELSECNET/H utility is limited up to 8.
Eight utilities have already been activated.
The maximum number (8) of MELSECNET/H utilities have already
been started up.
Execute again after closing one or more of them.
Failed to open the Help file. Since installation of SW PVC-CCPU may have failed, reinstall it.
Failed to read the parameters. The probable causes are:
• No MELSECNET/H parameters are set.
• The hardware is faulty.
• Set the MELSECNET/H parameters, and write them to the C
Controller module.
• Check the C Controller module for a hardware fault.
Failed to read the version information. Since installation of SW PVC-CCPU may have failed, reinstall it.
Failed to save the parameter file.
Confirm the destination to save.
Check the free space of the destination to save.
Check the media of the destination to save.
Set the total of the saving location and file names using 128
characters or less.
Failed to start up the C Controller setting utility. Since installation of SW PVC-CCPU may have failed, reinstall it.
Failed to start up the Device monitor utility. Since installation of SW PVC-CCPU may have failed, reinstall it.
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