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4.4.7
IFC Check
4. 4.
7.1
Test
as
shown
below:
Action
HP-85 Code
Your
Controller
Send
the
ATN
message
RESUME
7
false
Send
the
IFC message
ABORTIO
7
true
a.
Verify that the
ADDR
LED
is
extinguished
4.4.8
Talk-Only
Selector
Check
4.4. 8.1
Perform
the following procedure:
a.
Set the
Talk-Only switch on
the 1994's rear panel
to
1.
Verify that the
REM
LED
is
turned
off
and
the
ADDR
LED
lights
b.
Set the
Talk-Only switch
to
0.
Verify that the
ADDR
LED
is
turned
off
4.5
INTERFACE MESSAGE REPERTOIRE
and
RESPONSE
4.5.1
Introduction
4. 5.
1.1
The 1994
is
equipped with a standard
GPIB
interface designed
to
meet IEEE-
.
STD-488-1978
specifications.
These
specifications
provide
a
definition
of
multiline
interface
messages,
dividing
them
into
two main
groups:
a.
Primary
command
group
b.
Secondary
command
group
This
counter
includes only the
primary
commands
in
its
interface repertoire.
4. 5.
1.2
The primary
command
group
is
further divided
into
four categories:
a.
Listen address
commands
b.
Talk address
commands
c.
Addressed
commands
d.
Universal
commands
4-17
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