5-6
IM WT3001E-17EN
5.4 Data
Data
A data section comes after the header. A space must
be included between the header and the data. The
data contains conditions and values. Data is classified
as below.
Data Description
<Decimal>
A value expressed as a decimal number
(Example: VT ratio setting
->
[:INPUt]:SCALing:VT:ELEMent1 100
)
<Voltage><Current> A physical value
<Time><Frequency> (Example: Voltage range setting
->
[:INPUt]:VOLTage:RANGE:
ELEMent1 100V
)
<Register>
Register value expressed as binary, octal,
decimal or hexadecimal.
(Example: Extended event register value
->
:STATUS:EESE #HFE
)
<Character Data>
Predefined character string (mnemonic). Can
be selected from { }.
(Example: Trigger mode selection
->
:DISPlay:WAVE:TRIGger:
MODE {AUTO|NORMal}
)
<Boolean>
Indicates ON and OFF. Set using ON, OFF or
a value
(Example: Data hold ON ->
:HOLD ON
)
<String data>
An arbitrary character string
(Example: User-defined function
->
:MEASure:FUNCtion1:
EXPRession "URMS(E1)"
)
<Filename>
Indicates a file name.
(Example: Save file name
->
:FILE:SAVE:SETup[:EXECute]
"CASE1"
)
<Block data>
Arbitrary 8-bit data
(Example: Response to acquired waveform data
->
#40012ABCDEFGHIJKL
)
<Decimal>
<Decimal> indicates a value expressed as a decimal
number, as shown in the table below. Decimal values
are given in the NR form as specified in the ANSI
X3.42-1975.
Symbol Meaning
Example
<NR1>
Integer
125
-1
+1000
<NR2>
Fixed-point number
125.0 -.90 +001.
<NR3>
Floating-point number
125.0E+0 -9E-1 +.1E4
<NRf>
Any of the forms
<NR1>
to
<NR3>
is allowed.
• The instrument can receive decimal values that are
sent from the controller in any of the forms, <NR1>
to <NR3>. This is represented by <NRf>.
• For response messages that the instrument returns
to the controller, the form (<NR1> to <NR3> to be
used) is determined by the query. The same form is
used regardless of the size of the value.
• For the <NR3> format, the “+” sign after the “E” can
be omitted. However, the “-” sign cannot be omitted.
• If a value outside the setting range is entered, the
value is normalized so that it is just inside the range.
• If a value has more significant digits than the
available resolution, the value is rounded.
<Voltage>, <Current>, <Time>, and <Frequency>
<Voltage>, <Current>, <Time>, and <Frequency>
indicate data that have physical dimensions.
<Multiplier> or <Unit> can be attached to the <NRf>
form that was described earlier. It is expressed in one
of the following forms.
Form
Example
<NRf><Multiplier><Unit>
5MV
<NRf><Unit>
5E-3V
<NRf><Multiplier>
5M
<NRf>
5E-3
<Multiplier>
<Multipliers> which can be used are indicated below.
Symbol
Word Multiplier
EX
Exa
10
18
PE
Peta 10
15
T
Tera
10
12
G
Giga 10
9
MA
Mega 10
6
K
Kilo
10
3
M
Milli
10
–3
U
Micro 10
–6
N
Nano 10
–9
P
Pico
10
–12
F
Femto 10
–15
<Unit>
<Units> that can be used are indicated below.
Symbol
Word Meaning
V
Volt
Voltage
A
Ampere
Current
S
Second
Time
HZ
Hertz Frequency
MHZ
Megahertz
Frequency
• <Multiplier> and <Unit> are not case sensitive.
• “U” is used to indicate micro “µ”.
• “MA” is used for Mega to distinguish it from Milli.
However, “MA” is interpreted as milliampere for
current. In addition, megahertz is expressed as
“MHZ.” Therefore, the “M (Milli)” multiplier cannot be
used for frequencies.
• If both <Multiplier> and <Unit> are omitted, the
default unit (V, A, S, or HZ) is used.
• Response messages are always expressed in the
<NR3> form. Response messages are returned
using the default unit without the <Multiplier> or
<Unit>.