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(d) Login user
1) Default account
To prevent illegal access, delete the default account (User name and
password) using the loginUserDelete function.
2) Retaining login user setting
The login user settings are cleared and return to default when the C Controller
module is powered off or is reset.
To retain the login user settings, describe a registration (adding/deleting) of the
settings in a script file.
Describe either of the following in the script file.
• Directly describe the login user operation commands (loginUserAdd
function or loginUserDelete function).
• Provide a description that starts the user program task for login user
operation.
For login user settings, refer to the C Controller Module User's Manual
(Hardware Design, Function Explanation).
(e) Power off and reset during writing a user file
Data corruption or a file system error may occur if the C Controller system is
powered off or is reset (including remote RESET) during writing data to a user file
in the standard RAM, standard ROM, or CompactFlash card.
To power off or reset the C Controller system during writing data to a user file in
the standard RAM, standard ROM, or CompactFlash card, perform the following
first.
1) When writing data to a file in the standard RAM or standard ROM
Close the file where data are being written. (Program example
1, CHAPTER 12)
2) When writing data to a file in a CompactFlash card
Close the file where data are being written, and unmount the CompactFlash
card. (Program example
For the stop processing of the CompactFlash card, refer to the C Controller
Module User's Manual (Hardware Design, Function Explanation).
(f) Watchdog timer
A user watchdog timer error occurs when the user watchdog timer cannot be reset
due to some reasons such as user program runaway.
When a user watchdog timer occurs, perform the following.
• Increase the WDT time set by the QBF_StartWDT function.
• Lower the CPU utilization of tasks that require high utilization.
Or set them not to operate.
• Review user programs .
After the above operations, reset the C Controller system.
For resetting, refer to the C Controller Module User's Manual (Hardware Design,
Function Explanation).
(g) IP address
The IP address of the C Controller module cannot be set from a user program.
Set in the <<Online operation>> tab of C Controller setting utility.
Page 12-1, CHAPTER 12)
Page 12-
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