TriPoint VertexRSI 7200, Руководство по эксплуатации и обслуживанию

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Append i x F-7200 GPIB (IEEE-488) Request/Command M & C Protoco l C G6041(Rev. E-June 00)
F - 3
4.0 GENE R A L T R ANSM I T/ R ECE I VE FO R MATS
4.1 Wh i t e Sp ace
Spaces (A SCII 3 2 dec i ma l ) are used to separate f i e l ds. When the 7 2 0 0 A C U sends
data, f i e l ds are a l w ays separated by one space un l ess otherw i se noted. If the 7 2 0 0
A C U’s response i s severa l f i e l ds fo ll o w ed by a (CR), the l ast f i e l d w ill not have a
space bet w een i t and the (CR).
Input may have more than one space separat i ng f i e l ds. Checksums are not
supported on the GPIB i nterface.
4.2 P os i t i on V ec to r s
Pos i t i on vectors are a l w ays transm i tted by the 7 2 0 0 A C U i n the form az i muth,
e l evat i on, and po l ar i zat i on, w here the format of the l ook ang l e i s the same as sho w n
on the 7 2 0 0 A C U front pane l d i sp l ay. For s i gned ang l es, a "-" i mmed i ate l y precedes
the ang l e i f i t i s negat i ve. Pos i t i ve s i gned and uns i gned ang l es are i dent i ca l ; there i s
no l ead i ng " + . " The A Z output i s uns i gned. Its range i s 0 ang l e < 3 6 0. The EL
and POL outputs are s i gned: -1 8 0 ang l e < 1 8 0.
A t l east one d i g i t w ill a l w ays be both to the l eft and to the r i ght of the dec i ma l po i nt
(Examp l e: 0.0). POL w ill a l w ays return 0.0 degrees i f d i sab l ed.
Examp l e return: 1 2 5.3 5 5 3.8 1 -2.0
Pos i t i on vectors, sent from the remote to the 7 2 0 0 A C U, must have at l east one d i g i t
to the r i ght of the dec i ma l po i nt. If a s i gn i s i nc l uded, i t must i mmed i ate l y precede
the number w i th no space bet w een the s i gn and the most s i gn i f i cant d i g i t.
4.3 E rr o r Cod e s ( a t End of Re qu e st/Comm a nd Re spons e )
0 0 0 No error: Request/Command comp l eted successfu ll y.
0 0 1 Last Request/Command rece i ved successfu ll y; a w a i t i ng further i nput.
1nn Inva li d data i n f i e l d nn on th i s li ne. F i e l d 0 i s a l w ays the checksum f i e l d.
If there i s no checksum, the f i rst f i e l d i s f i e l d 1. In most cases, f i e l d 1 i s
the Request/Command. In the case of mu l t ili ne i nput (0 0 1 > prompt), the
checksum i s f i e l d 0 ( i f enab l ed), and the next f i e l d i s f i e l d 1, etc. Inva li d
data means e i ther that the data makes no sense for the f i e l d i n quest i on
(Examp l e: non-numer i c str i ng w here number i s expected), the data i s out of
range, or the data i s i nva li d.
1 0 0 Ind i cates checksum fa il ure. If there are extra f i e l ds i n the i nput, that f i e l d w ill
be f l agged as i nva li d data.
2 0n Secur i ty v i o l at i on: Insuff i c i ent secur i ty l eve l to comp l ete command. n
i nd i cates the requ i red l eve l : 2 = operator or 3 = superv i sor.