7-2
IM AQ6370C-17EN
Collective Transmission of Multiple Commands
You can create a command string using the commands described in section 7.5,
“Common Commands,” and section 7.6, “Instrument-Specific Commands” and send it to
the instrument. If multiple commands are written in a single output statement by using a
semicolon “;” to delimit each command, the commands will be executed in the order in
which they have been written.
Format of a Remote Command
Short and Long Forms
The instrument’s GP-IB commands support both short and long forms.
For the commands contained in this manual, the part written in capital letters is the short
form of the command concerned. The short form of the
INITiate
command is
INIT
.
Upper- and Lower-Case Letters
The instrument does not distinguish between upper- and lower-case letters.
Return values are all in upper-case letters.
Grouping of SCPI Commands Using a Subsystem
The instrument supports the subsystem-based grouping of the SCPI commands.
Commands belonging to the same sub-system and existing at the same tree of the
hierarchical structure of the subsystem can be sent in combination. In this case, each
command should be delimited by a semicolon.
List of GP-IB commands used in examples
:SENSe :SETTing
:ATTenuator
:WAVelength
:STOP
:STARt
• SENSe:WAVelength:STARt 1500NM;STOP 1600NM
(Y)
• SENSe:WAVelength:STARt 1500NM;ATTenuator ON
(X)
(Reason: They are not in the same hierarchy.)
• SENSe:WAVelength:STARt 1500NM;:STOP 1600NM
(X)
(Reason: A colon “:” is unnecessary after a semicolon “;”.)
Numerics
• This instrument supports multiple notation methods when receiving a numeric(s).
• This instrument uses only the basic units when transmitting a numeric(s).
The number of digits for the real part is fixed to a one digit integer (with a sign) and eight
digits for decimal places. The number of digits for the exponential part is fixed to 3.
Ex.: Receivable numerics (in case of 1550 nm)
1550 nm, 1.55 um, 1550E-9, 1.55E-6, and others
Ex.: Transmittable numerics (in case of 1550 nm)
+1.55000000E-006
only
• If a received numeric has a precision higher than the range of numerics handled
inside this unit, lower decimal places will be rounded off rather than being discarded.
• This instrument can handle the following multiplier suffixes:
Multiplier
Mnemonic
Multiplier
Mnemonic
1E18
EX (exa)
1E-3
M (milli)
1E15
PE (peta)
1E-6
U (micro)
1E12
T (tera)
1E-9
N (nano)
1E9
G (giga)
1E-12
P (pico)
1E6
MA (mega)
1E-15
F (femto)
1E3
K (kilo)
1E-18
A (atto)
7.1 Rules of Syntax and Command Types