Fluke 6062A - Page 82

VALUE REASON
TRUE
FALSE
1 Ready
Input
buffer
is empty
and
no
commands
are
being
processed.
Input
buffer
is
not
empty
or
commands
are
being
processed.
2
Rejected
Entry
IEEE-488
rejected
entry; error
code
is
not
zero.
IEEE-488
rejected
entry
error;
code
is
zero.
4
Uncalibrated
RF
output
i s
not
calibrated,
(Front
panel
* UNCAL*
indi-
cator
is
lit.)
RF
output
is
calibrated.
(Front
panel
'UNCAL'
indi-
cator
is
not
lit.)
8
Power
on
Instrument
has
powered
up.
Speci
al
function
08.
16
32
Output
valid
Not
Used
RF
output
is
settled.
RF
output
is not
settled.
64
RQS
SRQ
mask ANDed
with
currently
set
values
is
not
zero.
Reason
for SRQ
goes
away
or serial
poll
is
performed.
128
-
Front
panel
Special
function
07.
Special
function
08.
The
Generator
asserts
SRQ
when one
of the
allowed
reasons
becomes
true.
The serial
poll
response
is the
sum of those
values
for
reasons that
are
currently
true,
independent
of the
seUing
of the
SRQ mask.
For
example, if
the rejected
entry
SRQ
is enabled
with
“SM2”
and a
rejected
entry occurs,
the
serial
poll response
will
indicate
that the
Generator
generated
the
SRQ
(value
of
64)
and
that a rejected
entry
occurred
(value
of
2).
In addition,
other values
may
be set. The
default
SRQ
mask is 192.
The
“IM”
command
interrogates
the
current
SRQ
mask, and
an integer
is
returned.
The
“XF”
command
enables
a mode
that
causes
an SRQ
to be
generated
any time
the
Generator
processes
an entry.
In this
mode,
afront
panel
SRQ is
generated
(i.e., the
serial
poll
response
indicates
that
afront
panel SRQ
is the
cause of
the SRQ).
This
mode is
enabled
and
disabled
with
its own
command,
not
through
the Set
SRQ
Mask
commands
(as are
all other
SRQs).
The Alert
Mode
is enabled/
disabled
as follows:
“XFO”
=
Alert
Mode
off, “XFl”
=
Alert
Mode
on.
2-61.
TRIGGER
COMMANDS
The
Generator
has
the ability
to
preprogram
a command
string
of arbitrary
Generator
programming
commands.
This
command
string
is executed
whenever
the trigger
command
“TR”
orthe IEEE-488
group execute
trigger
interface
message
(GET) is
received.
This
method
of
programming
the
Generator
can
be used
when a
long string
of
commands
is to be
sent to the
Generator
over
and over.
The
programming
time
is shortened
by the time
required
to transmit
the string
of
characters
from
the controller
to
the Generator.