Hioki BT4560, Instruction Manual, Page: 5 / 62

2

Response Messages
When a query message is received, its syntax is checked and a response message is
generated.
:SYSTem:HEADer
command determines whether headers are prefixed to response messages.
Header ON
:RANGE 3.0000E-3
Header OFF 3.0000E-3
(The current measurement range is 3mΩ)
At power-on, Header OFF is selected.
If an error occurs when a query message is received, no response message is generated for that query.
Some query message has no header, such as
:FETCH?
.

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 upper-case letters, extended to the long form in lower case letters, although the
commands are not case-sensitive in actual usage.
CALIBRATION?
OK (long form)
CAL
OK (short form)
CALIB
Error
CA
Error
Response messages generated by the instrument are in long form and in upper case letters.

Headers
Headers must always be prefixed to program messages.
(1) Command Program Headers
There are three types of commands: Simple, Compound and Standard.
•
Headers for Simple Commands
This header type is a sequence of letters and digits
:ESE0
•
Headers for Compound Commands
These headers consist of multiple simple command type headers separated by colons “:”
:SYSTem:RESet
•
Headers for Standard Commands
This header type begins with an asterisk “*”, indicating that it is a standard command defined by IEEE 488.2.
*
RST
(2) Query Program Header
These commands are used to interrogate the instrument about the results of operations, measured values and
the current states of instrument settings.
As shown by the following examples, a query is formed by appending a question mark “
?
” after a program
header.
:FETCh?
:CALCulate:LIMit:BEEPer?