Interconnecting Cables
Instrument Addresses
Instrument
Nomenclature
Programming the Swept
CW Generator
l-58 Getting Started Programming
Figure C-2 shows the swept CW generator rear-panel HP-IB
connector and suitable cables, and describes the procedures and
limitations for interconnecting instruments. Cable length restrictions,
also described in Figure C-2, must be observed.
Each instrument in an HP-IB network must have a unique address,
ranging in value from 00-30 (d
The default address for
the swept CW generator is 19, but this can be changed using the
My Adrs
or rear panel switch as described in the reference
chapter (Chapter 2) under the “8360
entry (the examples
in this section use 19 as the address for the swept CW generator).
Other instruments use a variety of procedures for setting the address,
as described in their operating manuals, but typically either a rear
panel switch or a front panel code is used.
An HP-IB instrument 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 HP-IB network
can be listeners simultaneously.
Talker
A talker is a device capable of transmitting data or commands to
other instruments. To avoid confusion, an HP-IB 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 HP-IB activities. Only one device at a time
can be an active controller.
The swept CW generator can be controlled entirely by a computer
(although the line POWER switch must be operated manually).
Several functions are possible only by computer (remote) control.
Computer programming procedures for the swept CW generator
involve selecting an HP-IB command statement, then adding the
specific swept CW generator (SCPI, Analyzer, or CIIL) programming
codes to that statement to achieve the desired operating conditions.
The programming codes can be categorized into two groups: those
that mimic front panel keystrokes; and those that are unique, and
have no front panel equivalent.
