5
OUTPUT FORMATS
Measurement results can be output as ASCII characters or as Binary
data. The
ASCII output
can be interpreted by a
controller or
a printer whereas the binary
can only be interpreted by a controller. These outputs have the following formats.
5.1 RS423 PORT: TABULAR OUTPUT FORMAT
In this
mode, the
ASCII
coded
results
are presented in the form of a table,
suitable for use with an RS423 compatible printer having
a
line width
of 80
characters or more. Carriage return
plus line feed, plus several ASCII ’nul’
characters (delay for carriage return), are automatically added as the
output
terminator. Column headings may be either printed or suppressed.
To obtain tabular output, set the DATA OUTPUT {RS423} menu to [on].
A
5
column sequence of headings is
output:
(PARAMETER
1)
(PARAMETER
2)
ERROR
1
ERROR
2 TIME
(units) (units)
Parameters
1
and
2
(with appropriate
units) are chosen under DATA OUTPUT
{PARI
}
and {PAR2}. Error
1
and 2 relate to PARI and PAR2 respectively, and
report any measurement errors
(e.g.
error
31,
voltage
DVM Overload). Time is
given
as
hours, minutes, seconds and hundredths of seconds.
A sixth
column,
’FILE No.’, is output when the file is listed via
the RS423
port,
and indicates the index
number of the result.
5.2
GPIB PORT:
TABULAR OUTPUT
FORMAT
To obtain a tabular output, set the DATA OUTPUT {GPIB} menu to either [long
on] or [short on] and
the
Talk
Only
switch on the
SI1287
rear panel
to ’ON’. The
SI 1287 then sends data to the GPIB ASCII port in a format suitable for GPIB
compatible printers. The [long on] column format is the same
as
for
the RS423
port and the
column headings may either be printed or suppressed. With [short
on] selected, the TIME column is omitted.
For both long and short GPIB formats, the
output
terminator must be
selected as
described
in section 5.5.
5.3 GPIB PORT: COMPRESSED ASCII OUTPUT
In this mode the ASCII coded results are output in
relatively
compressed from,
suitable for interpretation by a controller on the
bus.
The SI1287
gives
each
parameter
a constant field width of 12 ASCII characters
(bytes), comprising a
6-digit
fixed point part with polarity sign, and
a
2-digit
exponent with polarity sign :
±n.nnnnnE±nn
CSB/SI1287 User Guide/Issue
AA 4.13
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