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U N I Ve Rs A L Comma N D; R Emote C A L I B Ra T I O - HP 5363B Operating And Service Manual

Time interval probes
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a .
L o c a l Loc k o u t , L L O ' . Loca l L o c k o u t i s a u n i ve rsa l c o m m a n d . A l l res p o n d i n g d e vi c e s
i n a b u s system w i I I o b e y a u n i ve rs a l c o m m a n d w h e t h e r t h e y a re a d d ressed to l i st e n o r
n o t . T h u s , t h e c o n t ro l l e r d oe s n o t n e e d to a d d ress d e v i c e s o n t h e b us before s e n d i n g a
u n i ve rs a l c o m m a n d .
Loca l Loc k o u t , L L O
re m a i n u n d e r rem ote c o n t r o l even i f t h e s w i t c h i s p re sse d . L L O p rotects t h e i n st r u m e n t
f ro m a c c i d e n ta l ret u r n to l o c a l c o n t r o l d u ri n g syste m o p e ra t i o n .
O n c e t h e 5363 B h a s b e e n g i ve n t h e L L O c o m m a n d , i t c a n ret u r n t o l o c a l c o n t r o l i f a n y
o f t h e f o l l o w i n g o c c u r:
1 .
R E N h i g h
2 .
G o To L o c a l , G T L , c o m m a n d
3 .
P o w e r U p
G o To Loca l
b .
ret u rn c o n t r o l of s e l ected d e v i c e s to t h e syst e m o p e ra t o r . GTL a l l o w s t h e o p e rato r to
p e rf o r m t a s k s t h a t c a n n o t be d o n e s o l e l y u n d e r re m ote c o n t rol .
c .
S e r i a l P o l l E n a b l e , S P E ' . T h e 5363 B respo n d s t o t h e u n i ve rs a l c o m m a n d S E R I A L
P O L L E N A B L E . T h e c o m m a n d i s req u i re d w h e n i t i s d e s i red t o o u t p u t a Stat u s b yt e , to
dete r m i ne the sta t u s of the 5363 B l e ve l ca l i b rat i o n . See R EM O T E C A L I B R AT I O N .
d .
S e r i a l Po l l D i s a b l e , S P D . D i s a b l e s a n y sta t u s b yte o u t p u t f ro m a n y d e vi c e o n t h e b u s .
T h i s c o m m a n d s h o u l d b e i ss u e d afte r a sta t u s b yte h a s b e e n o u t p u t o n t o t h e b us .
3-34.
R ef e r to
3 -35.
R EMOT E C A L I B R AT I O N
3-36.
Level ca l i b rati o n i s n ec e ss a ry w h e n a t ri g g e r l e ve l e rro r o f l e s s t h a n 1 50 m V i s req u i re d .
I T S H O U L D B E P E R FO R M E D W H E N T H E S L O P ES O R P R O B E S A R E C H A N G E D . Ca l i ­
b rati o n i s ac c o m p l i s h ed b y g ro u n d i n g t h e p r o b e s t h ro u g h 5 0 o h m s o r l e ss a n d s e n d i n g t h e
l e ve l c a l i b ra t i o n
5363 B c a u s e s t h e S e rv i c e R e q u e st ' S R Q , b u s c o n t ro l l i n e to b e c o m e a c t i ve .
F o r c o n ve n i e n c e , the p r o b e s may b e i n se rted i n to the f ro n t p a n e l
C A L I B R AT I O N j a c k s ; h ow e ve r, t h e T I M E Z E R O/ L EV E L s w i tc h m u st
b e d e pressed before and d u ri n g t h e t i m e t h e l e ve l c a l i b rat i o n c o d e is
p l aced o n t o t h e b u s .
FUNCTION
UNIVERS A L CODES
LOW I
I ATN MUST BE
LOCAL LOC KOUT I L L O
G O TO LOC AL I G T L
S ER I A L POLL ENA B L E I S P E I
SERIAL P O L L D I S A B LE I S P D I
d i sa b l e s t h e f ro n t p a n e l L O C A L s w i t c h s o t h a t t h e u n i t w i l l
G T L . T h e a d d ressed C o m m a n d G T L p ro v i d e s a c o n ve n i e n t w a y to
I
f o r a l i st of U n i ve rs a l P ro g ra m m i n g C o d e s .
Ta b le 3 - 4
p r o g ra m m i n g c o d e ' A S C I I @ . Afte r se n d i n g c a l i b ra t i o n c o m m a n d , t h e
Ta ble 3 - 4 . U n i versal Progra m m in g Codes
ASCI I
I
D C 1
I
S O H
CAN
E M
N OTE
BINAR Y 0 1 0 L INES
4
3
2
7
6
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
M o d e l 5 3 6 3 B
O pe ra t i o n
DECIMAL
OCTAL
1
021
001
0
030
031
1 7
24
25
3 - 1 5

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