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Accessing Support Functions (continued)
7-8
Using Support Functions
The function keys are defined below.
Before the compare operation is begun, the F1 key returns
ABORT
F1
the display to the Master Support Functions menu. After
the compare is initiated, F1 returns the display to the
Function 17 menu.
The F2 key saves the options selected to the program disk.
SAVE
F2
The F3 keys displays the last screen loaded to disk.
LOAD
F3
The F4 key initiates the compare function you select.
START
F4
The Verify F5, key tells the VPU to compare a memory
VERIFY
F5
category in the P/C to the same memory category on the
disk. This is the key used for entry in the Type field as
described above.
The Ignore, F6, key is entered in the Type field for any
IGNORE
F6
memory categories that are not to be examined or verified.
When the F7 key, Examine, is entered in the Type field, the
EXAMINE
F7
compare function works as described above.
Note the following distinctions between the Verify and Examine operations.
The Verify function compares a memory category (other than
Ladder,which is described below) and stops after finding three differing
locations. The addresses of the first two differing locations are
displayed, and "..." is displayed in the far right column to indicate
additional differences exist. The compare function then continues to the
next selected memory category.
The Examine function does not stop after one comparison failure. It
displays the differing location and continues comparing the same
memory category. After four mismatched locations, a prompt appears to
ask if you want to continue or abort the operation.
For Ladder memory, verify requires that networks be at the same
address in the P/C and on the disk, and stops after the first location
that differs. The Examine function does not require networks to be at
the same address (more no-ops could appear on either the disk or in the
P/C).
SIMATIC VPU200/565 Programming Manual
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