MAV If data is avail able in the out put queue, this bit is set. This bit can be used to
set an SRQ by set ting the same bit in the SRE reg is ter us ing the *SRE com -
mand. This bit is only cleared when there is no data wait ing to be trans mit ted.
ESB If any of the event reg is ter bits are set and the cor re spond ing event status en -
able bits are set the ESB bit in the status byte will be set. This bit can be used
to set an SRQ by set ting the same bit in the SRE reg is ter us ing the *SRE com -
mand. The ESB bit is cleared when the ESR is read by us ing the *ESR? com -
mand (pages 6-14, 6-54, 6-104 ).
6-9 FUNCTIONAL
GROUPS
Through out the ML24XXA (na tive) mode sec tion of this chap ter, the dis tinc -
tive, white on black text, in the up per cor ner of each com mand de scrip tion
area, in di cates the Func tional Group to which the com mand be longs (Fig ure
6-1). All ML24XXA (na tive) com mands are pre sented by Func tional Group in
Ap pen dix B, GPIB Quick Ref er ence.
The Func tional Groups are:
BNC Com mands in this group are used to con fig ure the rear panel BNC in puts and
out puts.
CAL I BRA TION The CALIBRATION group com mands are used for the 0.0 dBm ref er ence cal i -
bra tion and ze ro ing of the power sen sors.
CHAN NEL The CHANNEL com mand group con trols the con fig u ra tion of the two chan -
nels. When both chan nels are ac ti vated, Chan nel 1 ap pears at the top of the
dis play and Chan nel 2 at the bot tom. If one chan nel is turned off, the re main -
ing chan nel ap pears in the cen ter of the screen.
DATA
OUT PUT
Com mands in this func tion group are used to place data on the GPIB to be
read by the con trol ler.
DIS PLAY These com mands con trol char ac ter is tics of the dis play, in clud ing the
peakmeter read ing dis play and con trast ad just ments.
GPIB 488.2 This group con tains the GPIB 488.2 man da tory com mands. Re fer to the IEEE
488.2-1987 Stan dards doc u ments for fur ther in for ma tion.
GPIB SETUP The com mands in this group con trol the GPIB Ad dress, GPIB com mand set
em u la tion mode (ML24XXA, ML4803A or HP Em u la tion), and other
pa ram e ters.
GPIB
TRIGGER
Com mands in this group are used to con fig ure GPIB trig ger ing and setup the
GPIB Group Ex e cute Trig ger ( GET) and TR com mands (TR0, TR1, TR2,
TR3). Note that these com mands are ex clu sive to GPIB, and do not have
equiv a lent front panel op er a tions.
PRO FILE
SETUP
The PROFILE SETUP func tion group com mands change how the pro file is
dis played on the screen. Note that the Dis play Trig ger con fig u ra tion
6-10 ML2400A OM
FUNCTIONAL
GROUPS GPIB OPERATION
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