Hioki SW9001, Instruction Manual

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72
Communication Method
Response messages
When a query message is received, its syntax is checked and a response message is generated.
If an error occurs when a query message is received, no response message is generated for that
query.
Command syntax
Command names are chosen to mnemonically represent their function and can be abbreviated.
The full command name is called the “long form”, and the abbreviated name is called the “short
form”.
The command references in this manual indicate the short form in uppercase letters, extended to
the long form in lowercase letters, although the commands are not case-sensitive in actual usage.
:SYSTem:MODule:DELay
Expression used in this manual
:SYSTEM:MODULE:DELAY
OK (long form)
:SYST:MOD:DEL 0.01
OK (short form)
:SYST:MOD:DELA 0.01
Error
:SYST:MOD:DE 0.01
Error
Response messages generated by the device are in long form and in uppercase letters.
Headers
Headers must always be prefixed to program messages.
(1) Command program headers
The following three types are available.
Command type Example Description
Headers for simple
commands
*
ESE 0
This header type is a sequence of letters and
digits.
Headers for compound
commands
:SYSTem:PRESet
These headers consist of multiple simple
command type headers separated by colons (
:
).
Headers for standard
commands
*
RST
This header type begins with an asterisk (
*
),
indicating that it is a standard command defined
by IEEE 488.2.
(2) Query program headers
These commands are used to interrogate the instrument about the results of operations, measured
values, and the present states of instrument settings. As shown by the following examples, when
a query is formed by appending a question mark (
?
) after a program header, it is recognized as a
query.
Example:
*
STB?
:SYSTem:ERRor?
HIOKI SW1001A961-04