
Programming Guide 1-17
ESG Family Signal Generators Preparing for Use
GPIB Instrument Nomenclature
GPIB Instrument Nomenclature
An instrument that is part of an GPIB network is categorized as a listener, talker, or
controller, depending on its current function in the network.
Listener A listener is a device capable of receiving data or commands from other
instruments. Any number of instruments in the GPIB network can be
listeners simultaneously.
Talker A talker is a device capable of transmitting data or commands to other
instruments. To avoid confusion, an GPIB system allows only one device at
a time to be an active talker.
Controller A controller is an instrument, typically a computer, capable of managing
the various GPIB activities. Only one device at a time can be an active
controller.
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