Fluke 6060B Instruction Manual page 75

INSTALLATION
AND
OPERATION
Table 2-13. Interfade
Mode Commands
1
COMMAND DESCRIPTION
COMMAND STATUS
"EM" Error Mode
1
-
on,.
0 s
off
"RM" Record Mode
1
=
on,
0 =
off
"TM" Select Terminator
1
= CR, 0 =
LF
"UM"
Unbuffered Mode
1
= on,
0
=
off
"VM"
Valid Mode
1
= on, 0 ~ off
The
error
mode
selects
when
the
IEEE-488
rejected entry
status
is
cleared. If
turned on,
the error status
is
cleared
when
a
new
message
is
processed.
If
turned
off,
the status
is
cleared only
when
interrogated
with
the
"IR"
(interrogate rejected entry)
command
or
when
explicitly
cleared with the
"CE"
(clear
error
command).
The
record
mode
selects
whether
the
message
unit
is
a record or a
command.
When
turned on, the
message
unit
is
a record.
When
turned
off,
the
message
unit
is
a
command.
The
terminator
mode
selects
the character
used
as the
record terminator.
The
terminator
character
is
not used
for
command
processing unless the record
mode
is
enabled.
When
turned on, the record terminator
CR
(carriage return)
is
used.
If
turned
off,
the record
terminator
LF
(line
feed)
is
used.
The
record terminator character
is
the
last
character
in
all
IEEE-488
messages
sent
from
the Generator.
The
unbuffered
mode
selects
when
messages
from
the
IEEE-488
interface are processed.
When
turned on,
messages
are
read
from
the
IEEE-488
interface
only
when
the
microprocessor
is
ready
to process
them.
In
this
mode,
the input buffer
will
contain a
maximum
of
one
message.
(A message
may
be
one
command
or
one
record,
depending on
the setting
of the record
mode,)
When
turned
off,
messages are read
from
the
IEEE-488
interface to the
input buffer of the Generator
at
the
fastest rate.
In
this
mode, the input
buffer
may
contain
up
to
80 characters.
The
valid
mode
selects
when
messages
are processed
by
the
Generator
microprocessor.
When
turned on, processing of a
new
message
is
begun
only
after
the
RF
output has
settled
and become
valid.
When
turned
off,
a
new message
is
processed immediately
after
the
completion of
the
previous message.
The
interface
modes
can
also
be
programmed
using
the
command,
n
(where n
is
an
integer).
The
interface
modes
are
set
to the value of n where
n
is
the
sum
of the codes
for
the desired
modes.
The
integer codes for the interface
modes
that
can
be
programmed
using the n
commands
are as follows:
Terminator
Mode
-
1
Record
Mode
=
2
Valid
Mode
-
4
Unbuffered
Mode
=
8
Error
Mode
=
16
For
example,
to
select
the record
mode
and
valid
mode,
the
command
is
6.
Interface
Mode
Example
In this
example,
the
RF
output of Generator
is
connected to a
circuit that
is
being
measured by
a voltmeter.
The
output of
the
Generator must be
settled
before the
voltmeter
is
given
it's
command
to
make
a
measurement.
2-54