Mitsubishi MELSEC Q Series User Manual

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18.2 Troubleshooting
18.2.7 When communication is not available between development environment (PC) and C Controller
18
TROUBLESHOOTING
(2) When connection to C Controller module is not available from
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. ( Section 10.2.5)
(3) When Tornado of development environment (personal computer) cannot
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. ( Section 10.2.6)
POINT
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.( Section 18.2.13)
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.

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English