Hioki RM3542, Instruction Manual, Page: 112 / 218

9.5 Communication Methods
106

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
:ESE 0
• Headers for Compound Commands
These headers consist of multiple simple command type headers separated by colons “:”
:SAMPle: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, mea-
sured 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:REFerence?

Message Terminators
This instrument recognizes the following message terminators:
From the instrument's interface settings, the following can be selected as the terminator for
response messages.
See: "Delimiter Setting" (p. 135)
Characters within square brackets [ ] may be omitted.
:SENSe:FUNCtion
:FUNCtion
[:SENSe:]FUNCtion
Either form is valid
•
LF
•
CR+LF
•
EOI
•
LF with EOI
•
CR
•
CR+LF
•
LF with EOI (initial setting)
•
CR+LR with EOI
•
CR+LF