Mitsubishi MELSEC-Q Series User Manual page 691

18
TROUBLESHOOTING
(2) When connection to C Controller module is not available from
(3) When Tornado of development environment (personal computer) cannot
18.2.7 When communication is not available between development environment (PC) and C Controller
development environment (personal computer) via FTP
Check the following when connection from the development environment (personal
computer) to the C Controller module is not available via FTP.
• Steps 1), 2) and 3) in the flowchart given in this section (1).
• The priority of the task in the user program. (
be connected to C Controller module
Check the following when Tornado of the development environment (personal
computer) cannot be connected to the C Controller module.
• Steps 1), 2) and 3) in the flowchart given in this section (1).
• The settings of Tornado. (
POINT
(1) If the problem cannot be resolved by taking the corrective actions with the C
Controller module executing a script file, check the script file and user
program.
• Check the script file and user program.
( Section 10.2.8)
• Disable the script file execution.(
Specify the correct script file and user program with special care. Specifying
incorrect script file and/or user program may result in instable operation (error
status, communication failure, illegal error code return, etc.) of the C
Controller module.
(2) If a stop error occurs in another CPU in a multiple CPU system, the
development environment (personal computer) may not be able to
communicate with the C Controller module.
In such a case, remove the cause of the stop error in advance.
Section 10.2.5)
Section 10.2.6)
Section 18.2.13)
18.2 Troubleshooting
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