Tektronix 2221 - Page 113

П
Options and Accessories - 2221 Operators
Table
7-28 (
cont )
C
Commands
Description
П
2230
REFStat
?
FREE
Returns the
number of free
Kbytes
in
the
nonvolatile
reference
memory
as
a
< NR1 > number from to 26 .
2230
REFStat ?
PROTect
7
Returns a thirty - character string that indicates the protected status of each of
the
reference
memories from REF1 to
REFZ . The
characters
returned
are U ,
L. ,
or P and
correspond
to
unlocked
,
locked
, or
permanent
protection
status
.
2230
SAVeref REF <
1-3 >
Command only .
Saves the
waveform selected by the
REFFrom
command into
the
named
reference
.
REF1
,
REF2
,
and
REF3 are 1
K (
1024
-
point
)
memory
locations
.
Any 1 k
portion
of 4 K
waveform
acquisition
( from
ACQ or
REF4 ) may
be saved as a
1 k
reference in REF1 -
REF3 ; the 1 K
portion stored
into
REF1
REF3 is
determined
by the
position
of the
active cursor .
The saved
reference
display is also turnd on .
П
П
Л
1 л
ALL
SAVeref REF4
Command only . REF4 is
a 4 K (
4096 - point )
memory location . It is the
only
reference memory for the 2220 and 2221 instruments , and as such the REF4
argument may be omitted from the SAV command for those instruments .
2230
SAVeref REF < A
- Z >
Command only .
Saves
the
waveform
selected
by
the
REFFrom
command into
the named
reference
(
REFA - REFZ ) .
Reference
waveforms
stored
as 4 k
records
cannot
be
moved
as
1 k
records
into
REF1
-
REF3 ; to be
either displayed or
tranmitted
4 K
records must
be moved into
REF4 .
2230
SAVeref
REF < 1-3
>
Command only . Saves the
waveform
selected
by the
REFFrom
command
into
the
named
reference
.
REF1
,
REF2
,
and
REF3 are 1
K (
1024
-
point
)
memory
locations . Any 1
K
portion of 4 K
waveform
acquisition ( from
ACQ
or
REF4
)
may
be saved as
a 1 k
reference in REF1 -
REF3 ; the 1 k
portion stored into
REF1
REF3 is determined by the position of the active cursor . The saved reference
display is also turnd on ,
П
ALL
SAVeref
REF4
Command only . REF4
is a 4 K (
4096 - point )
memory
location
. It is
the only
reference memory for the 2220 and 2221 instruments , and as such the REF4
argument may be omitted from the SAV command for those instruments .
2230
SAVeref
REFCA - Z >
Command only . Saves
the
waveform
selected
by
the
REFFrom
command into
the named
reference
( REFA -
REFZ ) .
Reference
waveforms stored as 4 k
records
cannot
be
moved as 1 k
records
into
REF1 -
REF3 ; to be
either displayed or
tranmitted 4 K records must be moved into REF4 .
1
П
П
T
C
7-37