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HP 811 OA Service G
u
i
d
e
R
egister Usage
Th
e HP 8110Α fir
mw
are uses t
h
e Sta
n
dard
Ev
e
n
t Stat
u
s, O
p
erat
i
o
n
Stat
u
s, a
n
d Q
u
est
i
o
n
ab
l
e Stat
u
s reg
i
sters
f
or re
p
ort
in
g
in
str
um
e
n
t
stat
u
s,
in
accorda
n
ce
wi
t
h
t
h
e SC
PI
sta
n
dard.
Th
e
f
o
ll
o
win
g ta
bl
e
li
sts t
h
e b
i
ts u sed
in
eac
h
reg
i
ster, a
n
d
wh
at t
h
e
y
are used
f
or .
Table 4-3 .
B
its
U
se
d
in SC
P
I R egiste
r
s
R
eg
i
ste
r
Bit
D escr
ip
t
i
o
n
STANDARD-EVENT-STATUS-REGISTER
0
Set
wh
e
n in
st.
h
as co
mpl
ete
d
all
p
e
n
d
in
g o
p
erat
i
o
n
s
0
Set to
in
d
i
cate t
h
at
in
str
um
e
n
t has powered-up
OPERATION-STATUS-REGISTER
1
Set
wh
e
n in
st. starts c
h
a
n
g
in
g
i
ts o
u
t
pu
t s
i
g
n
a
l
s
1
C
ld . wh
e
n in
st . fi
ni
s
h
es c
h
a
n
g
in
g o
u
t
pu
t s
i
g
n
a
l
s
2
Set
wh
e
n in
st . starts c
h
a
n
g
in
g
i
ts ra
n
ge
2
C
l
eared
wh
e
n in
st . fi
ni
s
h
es c
h
a
n
g
in
g
i
ts ra
n
ge
4
Set
wh
e
n in
st. starts α
f
re
qu
e
n
c
y m
eas
u
re
m
e
n
t
4
C
l
d.
wh
e
n in
st . fi
ni
s
h
es
f
re
qu
e
n
c
y m
eas
u
re
m
e
n
t
QUESTIONABLE-STATUS-REGISTER
0
Set t
h
e Q
UE
St
i
o
n
ab
l
e S
T
AT
u
s b
i
t
f
or VO
LT
age
0
C
l
ear t
h
e Q
UE
St
i
o
n
a
bl
e S
TA
T
u
s
bi
t
f
or V O
LT
age
1
Set t
h
e Q
UE
St
i
o
n
ab
l
e S
TA
T
u
s bit
f
or C
URR
e
n
t
1
C
l
ear t
h
e Q
UE
St
i
o
n
a
bl
e S
T
A
T
us
bi
t
f
or C
URR
e
n
t
2
Set t
h
e Q
UE
St
i
o
n
a
bl
e S
TA
T
u
s b
i
t
f
or ΤΙΜΕ
2
C
l
ear t
h
e Q
UE
St
i
o
n
a
bl
e S
T
AT
u
s
bi
t
f
or ΤΙΜΕ
5
Set t
h
e Q
UE
St
i
o
n
a
bl
e S
TA
T
h
s
bi
t
f
or V O
LT
age
5
C
l
ear t
h
e Q
UE
St
i
o
n
a
bl
e S
TA
'Ι'us
bi
t
f
or VO
LT
age
Tr
o
u
bles
h
ooti
n
g
4-5 1
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