92
4A
112
74
J
MTA10
6A
152
106
j
MSA10,PPE
4B
113
75
K
MTA11
6B
153
107
k
MSA11,PPE
4C
114
76
L
MTA12
6C
154
108
l
MSA12,PPE
4D
115
77
M
MTA13
6D
155
109
m
MSA13,PPE
4E
116
78
N
MTA14
6E
156
110
n
MSA14,PPE
4F
117
79
O
MTA15
6F
157
111
o
MSA15,PPE
50
120
80
P
MTA16
70
160
112
p
MSA16,PPD
51
121
81
Q
MTA17
71
161
113
q
MSA17,PPD
52
122
82
R
MTA18
72
162
114
r
MSA18,PPD
53
123
83
S
MTA19
73
163
115
s
MSA19,PPD
54
124
84
T
MTA20
74
164
116
t
MSA20,PPD
55
125
85
U
MTA21
75
165
117
u
MSA21,PPD
56
126
86
V
MTA22
76
166
118
v
MSA22,PPD
57
127
87
W
MTA23
77
167
119
w
MSA23,PPD
58
130
88
X
MTA24
78
170
120
x
MSA24,PPD
59
131
89
Y
MTA25
79
171
121
y
MSA25,PPD
5A
132
90
Z
MTA26
7A
172
122
z
MSA26,PPD
5B
133
91
MTA27
7B
173
123
{
MSA27,PPD
5C
134
92
\
MTA28
7C
174
124
|
MSA28,PPD
5D
135
93
MTA29
7D
175
125
}
MSA29,PPD
5E
136
94
^
MTA30
7E
176
126
~
MSA30,PPD
5F
137
95
_
UNT
7F
177
127
DEL
Message Definitions
PPE
Parallel Poll Enable
SPE
Serial Poll Enable
PPU
Parallel Poll Unconfigure
TCT
Take Control
SDC
Selected Device Clear
UNL
Unlisten
SPD
Serial Poll Disable
UNT
Untalk
4.16
Block Transfer (GPIB only)
Arbitrary waveform data sent in IEEE488.2 arbitrary block format may take two forms: the definite form
and the indefinite form. The essential difference between these forms is that the definite form contains
a byte count, while the indefinite form does not. In both cases, the format of the command is
:ARB:DATA<ws><preamble><data><terminator>.
The <data> represents the arbitrary waveform data. This field consists of 8 bit bytes sent in
hexadecimal form. Each arbitrary data point consists of two bytes with the high byte being sent first.
When sending data in this way, the value of a data point may range from -8191, corresponding to the
negative peak, to 8191, corresponding to the positive peak. The value 0 corresponds to zero baseline.
Compare the ASCII, or front panel representation, which defines data in the range - 8191.
Example: to set a data value to zero, send the Hex bytes
www.calcert.com
1.800.544.2843
0
5
10
15
20
25
30