
8.LADDER DIAGRAM MONITOR AND EDITOR SCREENS ([PMC LADDER]) B-63983EN/02
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8.7 FUNCTION TO AUTOMATICALLY INPUT UNSUSED
ADDRESSES
This function automatically inputs unused R, D, and E addresses
during ladder editing.
Specifying an unused start address
Enter any R, D, or E address and click the [AUTO] soft key.
The system searches for an unused bit through a list of addresses in
the ascending order, starting at that address, inputs the unused address
of the unused bit and places that address at the top of the list of unused
addresses. If you repeat this operation, the unused start address will
be updated. This address is not displayed on the screen. Upon the
completion of editing, the stored unused start address is abandoned.
Automatic input of R, D, or E address
After you have specified an unused start address, entering a single
address character "R", "D", or "E" and clicking the [AUTO] soft key
causes an unused bit address subsequent to the specified unused
address to be automatically input.
For the R address, a simpler operation is available: Merely clicking
the [AUTO] soft key enables automatic input.
If you perform this operation without specifying an unused start
address, the system searches for unused bit, starting at the first address
of the specified address type.
If an address used by a functional instruction parameter before a
search for an unused address is found, the following message will be
displayed and the search for an unused bit will be stopped to avoid the
simultaneous uses of the address.
NO FREE ADDRESS IS FOUND BEFORE Xxxxx.
NOTE
This operation is available to bit addresses only.
You cannot automatically input byte addresses.