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Glossary
Start screen
The first screen, which automatically appears after theoperating unit has started
up.
State button
The state button is a configurable display and operating element which can have
one of two states: ON and OFF, i.e. touched and untouched. Text or graphics
can be configured for both states which then appear on the state button.
Tag
A defined memory location in which values can be read from and written to. This
can be performed from the PLC or via the operating unit. Depending on whether
the tag is linked to the PLC or not, a distinction is made between "global" tags
(process tags) and "local" tags.
Touch panel
This is an operating unit without a keyboard. The touch panel (abbreviated to TP)
is operated via the contact-sensitive screen elements.
Glossary-4
TP 070 Equipment Manual
Release 03/00
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