User`s manual

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MELSEC
11 TROUBLESHOOTING
11.2 Troubleshooting Table by the Type of Error Occurring
When trouble occurs, refer to the methods in Table 11.1 for determining the cause of
the trouble.
Table 11.1 Troubleshooting table by the type of error occurring
No. Error detail Cause determination method/Action
1
A CC-Link board did not operate normally upon startup. Refer to the flowchart found in Section 11.3 for
when the board and PC do not operate.
2
There was no data linking although the master station and
other station were connected to the CC-Link board.
Refer to the flowchart found in Section 11.4 for
when the data link could be completed.
3
When an error occurs during the data link
1) An unexpected value is entered in the special device.
2) The device is being accessed using a function in the user
program, but data cannot be read or written.
3) Communication stops occasionally while the user program
is executing.
4) The system goes down (blue screen) or resets while the
user program is executing in operating system.
Refer to the flowchart found in Section 11.5 for
when an error occurs during data linking.
4
Uninstallation is not executed normally.
1) Although the message "SW
DNC-CCLINK-B has been
successfully uninstalled from your machine" is displayed
on the screen, the uninstallation is not complete.
Logon as a user with administrator authority and
execute the uninstallation.
(Refer to POINT in Subsection 8.4.3)
5
An error message is displayed in utility.
1) "Device Monitor Utility is not registered." is displayed.
2) "There is no Help file of CC-Link Utility." is displayed.
3) "Error going in loading Version information." is displayed.
4) "Error going in writing CC-Link board information." is
displayed.
Logon as a user with administrator authority and
execute utility (Refer to POINT in Chapter 9) or
reinstall the operating system.
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