Data - YOKOGAWA WT1800 User Manual

4.4

Data

Data
Data contains conditions and values that are written
after the header. A space separates the data from the
header. Data is classified as follows:
Data Meaning
<Decimal> A value expressed in decimal notation
(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> A register value expressed as binary, octal,
decimal, or hexadecimal
(Example: Extended event register value
->:STATUS:EESE #HFE )
<Character data> Predefined character string (mnemonic).
Select from the available strings in braces.
(Example: Trigger mode selection
->:DISPlay:WAVE:TRIGger:
MODE {AUTO|NORMal|OFF})
<Boolean> Indicates on and off. Specify ON, OFF, or a
value.
(Example: Turning data hold on
->:HOLD ON )
<String data> User-defined 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> Data that contains 8-bit values
(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 written in the NR form as specified in ANSI
X3.42-1975.
Symbol Meaning
<NR1> Integer
<NR2> Fixed-point number
Floating-point number 125.0E+0
<NR3>
<NRf> Any form from <NR1> to <NR3>
• The WT1800 can receive decimal values that are
sent from the controller in any form, from <NR1> to
<NR3>. This is expressed as <NRf>.
• The WT1800 returns a response to the controller in
one of the forms from <NR1> to <NR3> depending
on the query. The same form is used regardless of
the size of the value.
• For the <NR3> form, the plus sign after the "E" can
be omitted. You cannot omit the minus sign.
4-6
Example
125 -1 +1000
125.0 -.90 +001.
-9E-1 +.1E4
• If a value outside the range is entered, the value is
adjusted to the closest value within the range.
• If a value has more significant digits than are
available, the value will be rounded.
<Voltage>, <Current>, <Time>, and <Frequency>
<Voltage>, <Current>, <Time>, and <Frequency>
indicate decimal values that have physical significance.
A <Multiplier> or <Unit> can be attached to the <NRf>
form that was described earlier. The following types of
expressions are possible.
Form
<NRf><Multiplier><Unit>
<NRf><Unit>
<NRf><Multiplier>
<NRf>
<Multiplier>
<Multipliers> that you can use are indicated in the
following table.
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 you can use are indicated in the following
table.
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, "M (Milli)" cannot be used for
frequencies.
• If both <Multiplier> and <Unit> are omitted, the basic
unit (V, A, S, or HZ) is used.
• Response messages are always expressed in the
<NR3> form. Additionally, they are returned using
the basic units, without a multiplier or unit attached.
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
IM WT1801-17EN