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MELSOFT
7 MANAGEMENT OF DATA IN THE PLC CPU
(2) Deleting the keyword
Delete the keyword registered to the QnACPU.
Click the Keyword setup
button in the Delete PLC data dialog box, and click the
Delete keyword
button in the Keyword setup dialog box.
1)
2)
3)
No. Item Description
1) Target memory Sets the applicable memory for the keyword cancellation.
2) Keyword Sets the currently registered keyword.
3)
Execute
button
Click this button after setting the necessary settings.
(3) Canceling the keyword
When making PLC data deletion to the QnACPU, free the memory locked by the
keyword so that the memory may be selected as the deletion target file.
Click the Keyword setup
button in the Delete PLC data dialog box, and click the
Disable keyword
button in the Keyword setup dialog box.
1)
2)
3)
No. Item Description
1) Applicable memory Indicates the currently connected memory.
2) Keyword Sets the keyword registered for the PLC.
3)
Execute button
Click this button after setting the necessary settings.
POINT
• Disable keyword is valid for PLC data deletion only.
Perform Delete keyword when displaying the data of the memory whose keyword
has been registered to the PLC side window.
• If you have forgotten the keyword, format the PLC memory. (Refer to (5) for PLC
memory formatting.)
Note that since formatting clears all data including the keyword, write all data
again.
• Since the keyword is written directly to the PLC CPU by execution of registration,
the parameters and like need not be written to the PLC.
The keyword is made valid immediately after registration.