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The function keys available on the initial display are labeled as follows:
The F1 keys provides access to the Power-up Menu for copying and
formatting disks or running VPU diagnostics.
The operating modes are ONLINE and OFFLINE. In Online mode, the VPU
and the programmable controller (P/C) communicate; and any changes
entered on the VPU can be written directly to the P/C and to disk in some
instances. In Offline mode, there is no communication between the VPU and
P/C; and programs, edits, etc., must be written to disk to save.
Function keys F4 and F5 provide the options of accessing support functions
or printing cross-references. If F4, Support, is selected, the VPU performs
this operation in Online mode. With the selection of F5, printing of
cross-references is done in the Offline mode.
SIMATIC VPU200/560 Programming Manual
Menu Structure of the VPU200
3-7
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