Chap ter 6
GPIB Operation
6-1 INTRODUCTION This chap ter pro vides al pha bet i cally-ordered list ings and de scrip tions of all
ML2400A Se ries GPIB pro gram ming com mands. The ma jor ity of the GPIB
com mands have equiv a lents in the front panel menu set tings. Note that GPIB
op er a tion is not avail able when the power me ter is run ning from the in ter nal
bat tery (op tion ML2400A-11). The ML2400A Se ries Power Me ter sup ports the
IEEE 488.2–1992 GPIB stan dard in ML24XXA (na tive) mode (HP em u la tion
com mands are not GPIB 488.2 com pli ant). For fur ther in for ma tion about
GPIB pro gram ming, re fer to the IEEE 488.1/2 Stan dards doc u ments.
6-2 TYPOGRAPHIC
CONVENTIONS
The ty po graphic con ven tions, ab bre vi a tions, and syn tax leg end used through -
out this chap ter to de fine the GPIB com mands are de scribed in Fig ure 6-1.
6-3 DATA I/O FORMATS All ML24XXA (na tive) GPIB 488.2 com mands that use pa ram e ters must have
a space be tween the com mand header and the first pa ram e ter, and all sub se -
quent pa ram e ters must
be sep a rated by a comma (,). Mul ti ple com mands may
be sent on the same line, but must be sep a rated by a semi co lon (;).
The for mat for ML2400A Se ries (na tive) GPIB com mands is:
<com mand header><space><parameter 1>,<parameter n>,...
ML2400A OM 6-1
CFFRQ Cal Factor Frequency value SEN SOR
Syn tax: CFFRQ <s>, <value>[units]
s: A or B
value: 1 kHz to 140 GHz
Re marks: An ex panded de scrip tion of the com mand, how to use the com mand,
and pro gram ming hints or re stric tions.
Re lated
Com mands: Com mands that im pact or re late to this com mand.
Ex am ple: An ex am ple of the com mand in use.
Query: The as so ci ated query com mand and re turned string, if any.
Figure 6-1. Typo graph ic Con ven tions for Com mand List ings
Command mnemonic
Command Syntax String
Command function
Allowable values for the
command argument(s),
if any.
Indicates the Command's
“Functional Group”
(ML24XXA native mode
commands only)
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