Data - YOKOGAWA WT3000 User Manual

Precision power analyzer communication interface
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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
<NR1>
Integer
<NR2>
Fixed-point number
<NR3>
Floating-point number 125.0E+0
<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.
IM 760301-17E
Example
125
-1
+1000
125.0
-.90
+001.
-9E-1
+.1E4
• 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
<NRf><Multiplier><Unit>
<NRf><Unit>
<NRf><Multiplier>
<NRf>
<Multiplier>
<Multipliers> which can be used are indicated below.
Symbol
Word
EX
Exa
PE
Peta
T
Tera
G
Giga
MA
Mega
K
Kilo
M
Milli
U
Micro
N
Nano
P
Pico
F
Femto
<Unit>
<Units> that can be used are indicated below.
Symbol
Word
V
Volt
A
Ampere
S
Second
HZ
Hertz
MHZ
Megahertz
• <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>.
5.4 Data
Example
5MV
5E-3V
5M
5E-3
Multiplier
18
10
15
10
12
10
9
10
6
10
3
10
–3
10
–6
10
–9
10
–12
10
–15
10
Meaning
Voltage
Current
Time
Frequency
Frequency
5-5
1
2
3
4
5
6
7
App
Index

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