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Model 2790 SourceMeter
A typical setup for controlled operation is shown in
contain one controller and a number of other instruments to which the commands are
given. Device operation is categorized into three operators: controller, talker, and listener.
The controller controls the instruments on the bus. The talker sends data while a listener
receives data. Depending on the type of instrument, any particular device can be a talker
only, a listener only, or both a talker and listener.
Figure F-1
IEEE-488 bus configuration
Device 1
able to talk,
listen, and
control
(computer)
Device 2
able to talk
and listen
Device 3
only able to
(printer)
Device 4
only able to
®
Switch System Reference Manual
To Other Devices
(2790)
listen
talk
Figure
F-1. Generally, a system will
Data Bus
Data Byte
Transfer Control
General Interface
Management
DIO 1–8 Data
(8 Lines)
DAV
NRFD
Handshake
NDAC
IFC
ATN
Bus
SRQ
Management
REN
EOI
F-3
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