Hioki ST5520, Instruction Manual, Page: 131 / 201

123
Controlling the Instrument and Acquiring Data with Commands
Command ON/OFF
Some response commands are set with command setting ON/OFF.
Use HEADer command to designate setting.
The below is an example of the response command ON and command OFF.
Example: Response when test voltage is set at 1000 V.
Query:
:VOLTage?
(Command querying current test voltage)
Response: (Test voltage is 1000 V)
When command is set to ON (c parameter)
:VOLTAGE 1000
When command is set to OFF (only parameter)
1000
Parameter
Character data and decimal data are used as the ST5520 parameter (data) and the
command determines the type of data.
The ST5520 uses character string data and numeric data, and the type use varies
according to the command in question.
1.
Character data
Character string data must always begin with an alphabetic character, and the
characters following can be either alphabetic characters or numerals. Although
in character data either upper case letters or lower case letters are accepted,
response message output by the 3154 are always in upper case letters.
Example: 200M
2. Decimal data
The numeric data values are all represented in decimal, in three formats identified
as NR1, NR2 and NR3, and each of these can appear as either a signed number
or an unsigned number. Unsigned numbers are taken as positive.
NR1 format: Integer data
Example: +12, -23, 34
NR2 format: Fixed point number
Example: +1.23, -23.45, 3.456
NR3 format: Floating point number
Example: +1E-2, -2.3E+4
The term NRf format includes all these three formats.
Each 3154 command designates a format.
Delimiter
Depending on transmission direction, the delimiter is as
follows.
From computer to 3154: CR or CR + LF
From 3154 to computer: CR + LF
10
9
8
7
6
5
4
3
2
1
Appx.
Ind.