Solartron 1260 - Page 140

32
ESB.
16
MAV
8
End
of plot.
4
End of
sweep.
Event
status
byte.
Set
when
there is
a
correspondence
between
one
or more
of the
bits
set
in the
event
status
register
and
one or
more
of the bits set
in the
event
status
enable
register.
Cleared
by
an *ESEn
command.
Measurement
(or
message)
available.
Set when
there
are
data
available
to
be read.
The
data may
be
measurement
results,
parameter
query
replies or
anything
being
output
to the GPIB.
Cleared when
the data
are read.
Set
at the end
of a plot.
Cleared
when
a new
plot
is
started.
Set
at
the
end
of a sweep.
Cleared
when
a new
sweep
is
started.
2
1
End of
measure.
Set when
a
measurement
is
completed.
Cleared
when
a
new
measurement
is
started.
End
of
program..
Set when
a learnt
program
is
completed.
Cleared
when
a
new
program
is
started.
To
display
the
contents
of the
STB
on the
instrument
front
panel,
select the
STATUS
page in the
mini-status
display.
This is
updated
every
second.
The
values
of all
the bits,
except
bit
32 and
bit
64,
continuously
follow
status
changes.
If, for
example,
the
instrument
is measuring
repetitively
(RECYCLE)
bit 2
is set
to
T
as
each
measurement
is completed,
then
reset
to
'0*
as
a new
measurement
starts.
2.5.2
Service
Request Enable
The
instrument
can
be enabled
to request
service
(and
set the
RQS
bit)
for
one or more
specified
events.
(Alternatively,
if
several
of the
status
bits
must
be
monitored
simultaneously,
the
controller
can be
programmed
to poll
the
status
byte
continually.)
To
enable
a service
request
send
the remote
command
*SREn.
This
sets
the
number
n
(in
the
range
0 to
255) into
the
service
request
enable
register,
"n”
represents
an
event,
or
combination
of
events,
for which
service
is
to
be requested.
For
example,
n
=
8 (STB
=
00001000)
results
in
a service
request
at the next
end
of
plot (see
Fig 7.3).
*
SERVICE
REQUEST
ENABLE
MASK
(
set-up
code
=
*SRE8)
0
0
0
0
1
0
0
0
128
END
OP
RLE
64
RQS
3?
ESB
16
MAV
•
8
ENDOF
PLOT
4
ENDOF
SWEEP
2
END OF
MEASURE
1
ENDOF
PROGRAM
STATUS
BYTE
SERVICE
REQUEST
Fig 7.3
Setting
up a service
request
for "end
of
plot”.
7.8
JWS/1260/2