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This is the command where:
INPut:EVENt is the header path and
:HYSTeresis is the first leaf-node and
LEVel is the second leaf node because
LEVel is also a leaf-node under the
header path INPut:EVENt.
+
There is no colon before LEVel!
Parameters
Numeric Data
Decimal data are printed as numerical
values throughout this manual. Numeric
values may contain both a decimal point
and an exponent (base 10).
These numerals are often represented as
NRf (NR = NumeRic, f = flexible) format.
n
Keywords
In addition to entering decimal data as
numeric values, several keywords can ex-
ist as special forms of numeric data, such
as MINimum, MAXimum, DEFault,
STEP, UP, DOWN, NAN (Not A Num
-
ber), INFinity, NINF (Negative INFi
-
nity). The Command Reference chapters
explicitly specify which keywords are al
-
lowed by a particular command. Valid
keywords for the CNT-8X counters are
MAXimum and MINimum.
MINimum
This keyword sets a parameter to its min
-
imum value.
MAXimum
This keyword sets a parameter to its max
-
imum value.
The instrument always allows MINimum
and MAXimum as a data element in com
-
mands, where the parameter is a numeric
value. MIN and MAX values of a param
-
eter can always be queried.
Example:
SEND→
INP:LEV?8MAX
This query returns the maximum range
value.
n
Suffixes
You can use suffixes to express a unit or
multiplier that is associated with the deci
-
mal numeric data. Valid suffixes are s
(seconds), ms (milliseconds), mohm
(megaohm), kHz (kilohertz), mV (milli-
volt).
Example:
SEND→
:SENS:ACQ:APER8100ms
Where: ms is the suffix for the numeric
value 100.
Notice that you may also send ms as MS
or mS. MS does still mean milliseconds,
not Mega Siemens!
Response messages do not have suffixes.
The returned value is always sent using
standard units such as V, S, Hz, unless
you explicitly specify a default unit by a
FORMat command.
Boolean Data
A Boolean parameter specifies a single
binary condition which is either true or
false.
Boolean parameters can be one of the fol
-
lowing:
–
ON or 1 means condition true.
–
OFF or 0 means condition false.
Introduction to SCPI
Parameters 3-11