YOKOGAWA CW120 - Data

App 2-6
Appendix 2. Communication Commands
IM CW120-E
1.4 Data
Data
The data section comes after the header. A
space must be included between the header
and the data. The data contains conditions and
values. It is classified as follows.
Data Description
<Decimal>
<Voltage>, <Current>,
<Frequency>
<Character data>
<Boolean>
<Character string data>
<Filename>
Value expressed as a decimal
number
Value with a physical dimension
Specified character string
(mnemonic). Select from { }.
Indicates ON/OFF. Specify with
[ON], [OFF], or a value.
Arbitrary character string
Denotes a file name.
<Decimal>
<Decimal> indicates a value expressed as a
decimal number, as shown in the table below.
Decimal values are given in the NR form
specified in ANSI X3.42-1975.
Symbol Description Example
<NR1> Integer 125 -1 +1000
<NR2> Fixed-point number 125.0 -.90 +00.1
<NR3> Floating-point number 125.0E+0 -9E-1 +.1E4
<NRf> Any of the forms
<NR1> to <NR3>
is allowed.
• <NRf> represents the case when any of the
forms <NR1> to <NR3> can be used. The
CW120 accepts decimal values from the
personal computer in any form.
• The form, among <NR1> to <NR3>, used for
the response message is predetermined for
each query. The same form is used
irrespective of whether the value is large or
small.
• When using <NR3>, the "+" after the "E" can
be omitted, but the "–" cannot.
• If a value outside the setting range is
specified, the closest valid value will be used.
• If the value specified is beyond the precision
of the CW120, the value will be rounded.
<Voltage>, <Time>, <Frequency>
<Voltage>, <Time> and <Frequency> indicate
decimal values which have a physical
dimension. <Multiplier> or <Unit> can be
attached to the <NRf> form. The values are
specified in any of the following forms.
Form Example
<NRf><Multiplier><Unit> 5MV
<NRf><Unit> 5E-3V
<NRf><Multiplier> 5M
<NRf> 5E-3
<Multiplier>
The following multipliers are available.
Symbol Word Description
EX Exa 10
18
PE Peta 10
15
TTera10
12
G Giga 10
9
MA Mega 10
6
K Kilo 10
3
M Mili 10
-3
U Micro 10
-6
N Nano 10
-9
P Pico 10
-12
FFemto 10
-15
<Unit>
The following units are available.
Symbol Word Description
VVolt Voltage
A Ampere Current
HZ Hertz Frequency
KHZ Kilohertz Frequency
• <Multiplier> and <Unit> are not case-
sensitive.
• "U" is used to indicate "µ".
• "MA" is used for Mega (M) to distinguish it
from Mili. If used for current, however, "MA"
is interpreted as Milliampere. To refer to
Megaampere, write as "MAA".
• If both <Multiplier> and <Unit> are omitted,
the default unit (V, A or Hz) will be used.