National Instruments NI-488.2 Benutzerhandbuch

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Glossary
G-8
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T
TAD
Talk Address. See also 
.
Talker
A GPIB device that sends data messages to Listeners.
TCT
Take Control—The GPIB command used to pass control of the bus from 
the current Controller to an addressed Talker.
timeout
A feature of the GPIB driver that prevents I/O functions from hanging 
indefinitely when there is a problem on the GPIB.
TLC
An integrated circuit that implements most of the GPIB Talker, Listener, 
and Controller functions in hardware.
U
ud
 
Unit descriptor—A variable name and first argument of each function call 
that contains the unit descriptor of the GPIB interface or other GPIB device 
that is the object of the function.
UNL
Unlisten—The GPIB command used to unaddress any active Listeners.
UNT
Untalk—The GPIB command used to unaddress an active Talker.