Tektronix 2221 - Page 99

П
Л
Options
and
Accessories
-
2221
Operators
Table
7-18
Typical 16 - Bit Binary - Encoded Waveform Data
Table
7-19
Typical 8 - Bit
Hexadecimal
-
Encoded
Waveform
Data
GPIB EOI
( 1 =
Asserted )
Byte
Contents
GPIB EOI
( 1 = Asserted )
Decimal
Byte
Contents
Decimal
1
1
2
3
П
}
C
U
R
V
67
85
82
86
69
32
37
4
m
<
DCO
67
85
82
86
69
32
35
72
2
3
4
5
6
7
8
5
6
7
E
<
SP >
%
E
<
SP >
#
H
8
9
< Bin
Count
MSB
>
< Bin
Count
LSB
>
32a
01a
9
9
49 < Bin Count
MS 4
bits
>
10
10
11
12
13
1st Pt MSB
1st Pt LSB
2nd Pt
MSB
2nd Pt
LSB
diH
dal
d2H
del
11
48
48
49
O
O
O
12
л
П
Л
< Bin Count
LS 4
bits
>
13
14
1st Pt
MS 4
bits
1st Pt LS 4
bits
2nd Pt
MS 4
bits
2nd Pt LS 4
bits
ан
dal
15
8200
8201
4096th Pt
MSB
4096th Pt
LSB
04096H
04096L
dah
dal
16
8202
< Checksum >
chk
1
When
TERM =
EOI
13
n
82036
82049
< CR >
< LF >
1
203
4096th Pt
MS
4
bits
204
4096th Pt LS 4
bits
10
04096H
04096L
205
" (
20017 or
81930
)
)
chkh
bAll RS -
232 - C or
GPIB
with
TERM
LF / EOI .
<
Checksum
MS 4
bits
>
< Checksum
LS 4
bits >
206
chkl
CRS - 232 - C
with
TERM
CR
-
LF
,
1
When
TERM =
EOI
ܫܒ
207a
< CR >
2086
13 ( if term
= LF /
EOI
)
10 ( if term
= CR -
LF )
< LF
П
Л
?
1
Tables
7-19 and
7-20
illustrate 8 -
bit and
16 -
bit
HEXadecimal
-
encoded
waveform -
data transfers .
. All RS -
232 - C or
GPIB with
TERM
- LF / EOI .
DRS
-
232
- C
with
TERM CR - LF .
ASCII
Encoding
With
ASCii
waveform
data
encoding ,
ASCII characters
representing the binary value of each waveform data point
are
sent
in
variable
length
format ,
separated by
commas .
In
ASCII
format
,
the
curve
data
transfer is
represented as :
Table 7-21
illustrates an
8 - bit
ASCii
-
encoded
waveform
transfer .
Transmission
length
depends
on
specific
waveform
data
values ,
record
length ,
acquisition
mode and
smoothing
,
and
whether the
acquisition
is
one or
two
channels
.
CURVE <
space
>
data ,
data , data ,
..... , data
terminator >
Л
7
n
7-23