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Model 4277A
SECTION III
[1]
ASCII
mode
(Set
using
HP-IB
remote
program code "PO")
@ DISPLAY A/B
XXX
±NN.NNN
E±NN
,
(1)(2)(3)
(4}
(5)
(6)
Status and function data of DISPLAY A
and
DISPLAY
B,
and
status
of
Comparator are each represented as
one alphabetic character, as listed in
Table 3-14.
X
X
iN.NNNN
E±NN
(7) (8)
(9)
(10)
(11)
(1) Measurement circuit mode
(2) Status of DISPLAY A
(3) Function of DISPLAY A
(4) Value of DISPLAY A (position of decimal
point is coincident with display)
(5) Unit of DISPLAY A
(6) Comma (data delimiter)
(7) Status of DISPLAY B
(8) Function of DISPLAY B
(9) Value of DISPLAY B (position of decimal
point is coincident with display)
(10) Unit of DISPLAY B
(11) Data Terminator
@ COMPARATOR (Option 002 only)
X
X
N
(1)(2)(3)
(4)
(1) Status of L/C/i Z I
(2) Status of D/Q/ESR/G
(3) BIN number
(4) Data Terminator
When measurement error code, OF, UF,
CF or blank, is indicated on DISPLAY A
or DISPLAY B, value of DISPLAY A or
DISPLAY B ((4) or (9)) is output as
follows:
OF (overflow).
UF (underflow).
CF (change function)/
blank .
+19999E+20
+00000E-20
+OOOOOE-30
DISPLAY A and DISPLAY B ranges are
expressed as an exponent as follows:
lO-^^(p).
10-3 (n) •
10-3 (y)
.
10 3 (m)
10
° .
lO-
\k; •
10® (M)
The data delimiter, bit switch 6 on the
HP-IB Control Switch, is set at the
factory to comma (,). This causes the
instrument to output all data (DISPLAY
A
data,
DISPLAY
B
data,
and,
if
Comparator is used, Comparator data)
as a continuous string.
When the data
delimiter is set to CR/LF, a carriage
return and line feed signal is output
after each field.
This is useful when
outputting data to certain peripherals,
such as a printer.
The EOI signal is output with the LF
signal.
Figure 3-25. Data Output Format for the 4277A (Sheet 1 of 2).
3-59
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