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4349B
Status
Byte
Register
The
status
byte
register
is
composed
of
eight
bits
that
summarize
the
overlaying
status
data
structure
.
The
status
byte
can
be
read
using
either
3 STB?
or
SPOLL ,
which
return
a
decimal
expression
of
the
contents
of
the
register
(equal
to
sum
of
the
total
bit
weights
of
all
the
bit
set
to
\1").
F
or
more
information,
see
\T
o
Report
the
Instrument's
Status"
in
Chapter
4.
Figure
5-3.
Status
byte
Register
Bits
are
set
to
\1"
and
reset
to
\0".
T
able
5-2.
Status
Byte
Assignments
Bit
No
.
Bit
W
eight
Description
7
128
Operation
Status
Register
Summary
Bit
6
64
Request
Service
Bit|This
bit
is
set
when
the
any
enabled
bit
of
the
status
byte
has
been
set,
which
indicates
the
4349B
has
at
least
one
reason
for
requesting
service
.
SPOLL
resets
this
bit.
5
32
Standard
Event
Status
Register
Summary
Bit
4
16
MA
V
(Message
A
vailable)
Bit|This
bit
is
set
whenever
the
4349B
has
data
available
in
Output
Queue
,
and
reset
when
available
data
is
read.
3
8
Questionable
Status
Register
Summary
Bit
2-0
always
0
(zero)
5-34
GPIB
Reference
Содержание 4349B
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Страница 29: ...C Overload No Contact Operations Messages Instrument Errors Messages 2 GPIB Errors Messages 3 Index Contents 9 ...
Страница 42: ...4349B Figure 1 1 Power Cable Supplied 1 10 Getting Started ...
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Страница 173: ...4349B Figure 8 5 Current Measurement Additional Error Measurement Time 400 msec General Information 8 11 ...
Страница 176: ...4349B Figure 8 9 10 Additional Error Measurement Time 400 msec 8 14 General Information ...
Страница 210: ...4349B Figure B 1 Handler Interface Comparison Output Signals Diagram B 2 Handler Interface Installation ...
Страница 212: ...4349B Figure B 3 Handler Interface Input Signal Diagram B 4 Handler Interface Installation ...
Страница 216: ...4349B Figure B 4 A1 Main Board B 8 Handler Interface Installation ...
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