Siemens SIMATIC S5 Manual page 239

Fundamentals of COM 266
Function key menu:
<F5> When you have specified the file you want to delete, press this key to
start the Delete operation. The output fields in the header are updated.
A prompt is displayed on the error line asking you whether you are sure
you want to start the Delete operation. If you confirm with <F1>, the
word "Deleted" appears to show you that the Delete operation has
been successfully completed.
Entry of a non-existent file is flagged by an error message.
<F7> Use this key
"MACHINEDATA" and "MACHINING PROGRAM".
<F8> Use this key
"MACHINEDATA" and "MACHINING PROGRAM".
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in the "Data block"
in the "Data block"
IP 266
field to choose between
field to choose between
EWA 4NEB 812 6057-02