HP 3336A Operating Manual page 38

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Model 3336A/B/C
—unattended operation.
—data manipulation and storage.
—automatic generation of permanent records by using peripherals
such as plotters and printers.
—the capabilities created by the coordinated operation of two or
more devices.
NOTE
HP-IB is Hewlett-Packard's implementation of IEEE Std.
488-1978, ''Standard Digital Interface for Programmable In-
Strumentation"'.
3-107. Special Operating Considerations. If possible, lock all instruments to a single fre-
quency reference. This will greatly simplify the tuning subroutine in the controller's pro-
gram. Use the most accurate frequency reference availalble. The -hp- 3336 aging rate is
specified at less than + 5 x 10-6 per year. The -hp- 3336 with Option 004 aging rate is
specified at less than + 5 x 10-8 per week.
3-108. HP-IB Operating Principles.
3-109. Talker. Any device that can, when addressed, send over the HP-IB is a TALKER.
The -hp- 3336 is a talker since it can send messages indicating its operating state and the
values of all its programmable functions.
3-110. Listener. Any device that can, when addressed, receive over the HP-IB is a
LISTENER. The -hp- 3336 is a listener since it can receive messages that program its func-
tions. Obviously, it is possible for a device to be both a talker and a listener, though not at
the same time.
Operation