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5100
Series
2-194.
The
numeric message
is
followed by
the charact-
er
"L"
if
the
LIMIT
indicator
on
the Front Panel
is
illuminated.
A
character
(Table
2-18) representing
any
function
indicators
on
the Central
Display
illuminated
follows
the
numeric
portion of the message.
When
all
data has been
transmitted the
message
concludes with a
Carriage Return
and
Line Feed.
Table
2-18. Status
Message Function Codes
Character
indicator illuminated
L
Limit
V
V
-
Volts
A
A
-
Amps
Z
Q,
—
Ohms
H
Hz
-
Hertz
D
dBm
-
decibal
milliwatts
%
% ERROR
G
dB
ERROR
2-195.
Only
the
data
on
the
Central Display
is
trans\
mitted with
the character
"T\ however,
the
data can be
frequency
from
an
AC
operation, a percentage
during
Error
Mode
operations or
any data
available
on
the
Central Display during
Recall operations.
Examples
of
each of
the
above
are given
in
the
following paragraphs.
2-196.
When
the
instrument
is
operating
in
the
AC
mode
the frequency
selected
is
displayed
on
the
Central
Display.
If
this
frequency
was 400
Hz
and
the
Central
Display
was
requested with the character
*T
the
response
would
be
0.40000E3H
CR
LF.
A
frequency of
10
kHz
would
be transmitted
as
1
.OOOOOE4H
CR
LF.
Any
other
frequency
would
result
in
status
message
in
the
same
format.
2-197.
In the Error
Mode
the
frequency
for editing,
the
percentage of
error calculated
and
the
dB
error
calculated
can be
transmitted
in
a
status
message,
when
they are
present
on
the Central Display.
If
the
message
is
a
percentage
of
error
or
dB
figure
and
it
exceeds
the preset
tolerance
limits so
that the
LIMIT
indicator
is
illumin-
ated
the
message ends
with
the
character "L".
2-198.
A
frequency transmission
is
transmitted
as
described above.
2-199.
A
percentage
error
is
transmitted
as
shown on
the
Central
Display,
i.e.,
a
reading
of
0.0031
would
be
transmitted
as 0.003
1
E0%
CR
LF.
2-200.
In
the Recall
Mode
any
data
that
can be
recalled
to the
Central Display
can be
transmitted
in
the status
message. This
includes
programmed
values for
Volts,
Amps, Ohms, dBm,
the
voltage
when
dBm
is
programmed,
the tolerance
limits
and
the entry
timts,
both Voltage and
Current.
2-201.
Recalled
programmed
entry
limits
of
+750V
dc
would
be transmitted as
+0.75000E3VL
CR
LF.
2-202.
An
output of
-H50
/kA
dc
recalled
and
trans-
mitted
would
be
+1.50000E-04A
CR
LF.
2-203.
Program Examples
2-204.
The
following
paragraphs contain
several
programming
examples
to aid the
operator
in
using
the
calibrator.
2-205.
Use
the
following
instructions to
obtain
the
output
listed:
1.
+6E-3A,
N-ln
operate with
an output
of
4-6
m
dc.
2.
5V1E3H,
N-In
operate with
an
output of
5V
ac
at
1
kHz.
3.
L+300VL-250V
-
Set the entry
limits at
+300V
dc and -250
V
dc.
4.
T.01%
-
Sets the tolerance
limit
to
±0.01%
5.
1.5VX1R1, N-In
operate with
an
output
of
41.5V
dc
and
the
instrument prepared
for
4-terminal sensing with the
50
ohm
divider
overridden.
6.
GL4-V?
-
Recall the
positive
voltage entry
limit
and
output
it
in
a Central
Display Access
Word.
2-206.
The
following are
some
typical status register
messages
and
a
decoded
explanation.
I.
004210009
1-
No
errors
2-
None
selected
3-
Volts
selected
4-
AC
and Standby
selected
5-
External sensing
selected
6-
None
selected
7-
None
selected
8-
Not
used
9-
Error
Mode
not used
2-32
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