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Model
3455A
Seclton
111
3-67.
The
following
data
message examples
illustrate
how
to
read or
program
the front panel control
of
the
Table
3-5.
BINARY
PROGRAM
Codes.
f
irti
BINARY
enOGRAM
0*u
Byla
ControH
AIfKtM. SCALE,
%
ERROR. OFF IMATHl
To
f
1
Pro«i*ni
CoBc
ASCII
CHAR
DECIMAL
CODE
OFF
ss
TERROR
•
61
SCALE
>
62
Second
BINARY
PROGRAM
0>i< Bv<«
Control*
AfftciM
AUTO
CAL.
AUTO
RANGE. HIGH RESOLU
TION.
HOLD/MANUAL. EXTERNAL. INTERNAL
To
Proflrtm
PROGR
AM
CODE
AUTO
AUTO
HIGH
ASCII
1
DECIMAL
CAL
RANGE
RESOLUTION
!
TRIGGER
CHAR
'
CODE
Oil
Oil
OH
HoM)/U»nu*l
SB
EkMrn«l
-
61
Innrnkl
>
63
Oil
Oil
On
HoM/Mnuai
3
St
Ekt*m*l
6
S3
lni«rn*l
6
S4
Oil
On
OH
Hold/M»nutl
43
EABrnil
-
4S
46
Oil
On
On
1
Hold/Mnnuil
#
3S
ExtarA*!
%
37
Internal
B
38
On
Oil
OH
f^nuai/Hold
1
01
Extarnal
1
03
Internal
04
On
on
On
Manual/
Hole*
S
63
Enarnal
U
SS
Internal
V
86
On
On
OH
Manual
/Ho*d
K
75
External
M
77
Internal
N
78
On
On
On
M«nutl/Hola
C
67
EiTarna*
E
60
Incernal
F
70
TNva
BINARY
PROGRAM
Ool* Bvie
Control*
AfIcciM' 10
K,
1
K, 100. 10.
1,
I
(RANGE)
To
Fro
9
ra«n
1
Pro^remCotfe
ASCII
CHAR
DECIMAL
CODE
to
K
_
05
1
K
/
47
100
7
SS
to
SB
1
•
61
1
>
62
Fourlh
BINARY
PROGRAM
Oou
Bvtt
Conitoli
AlloeiM
TEST. 4
WIRE
kO.
2
WIRE
kO.
FAST
ACV.
ACV,
OCV
IFUNCTIONI
To
Frogrem.
1
Profxm
Cod*
ASCII
CHAR
DECIMAL
CODE
TEST
_
05
4
WIRE
kfl
/
47
3
WIRE
ktl
7
56
FAST
ACV
S0
ACV
-
61
DCV
>
63
3455A.
To
read
control
status:
wrt 722.
"B"
Address
the
3455AIO
"listen"
Set the
345
SA
to (he
BINARY
PROGRAM
mode
Since
normally
four data
bytes are
used
in
Binary
pro-
gramming,
the
345SA
may
indicate
an
SRQ
condition
when
only
a
"B"
is
sent.
red
722
Address
the
3455A
I
to "talk"
The 3455A,
after receiving
the "talk"
command,
will
out-
put the
front panel control status
codes
(4
bytes).
As
an
example,
if
the front panel controls
were
in
the
"turn-on"
state,
the
3455A
would
output
the following codes:
N
MATH
OFF
AUTO CAL ON
AUTO RANGE ON
HIGH
RESOLUTION OFF
INTERNAL TRIGGER
>
1
DC
Volts
FUNCTION
1
Volt
RANGE
(depends on
input applied)
To
program
front
panel
controls:
wrt 722,
"B
;K/ =
Address
the
3455Ato
*
•listen"
Sei3455Ato
BINARY
PROGRAM
mode
Desired
program
codes
(see
Table
3-5)
3-68.
MMBurMMflt
Data.
Measurement
data
is
output by
the
3455A
in
the following general format:
OUTPUT FORMAT:
Polarity
of
measurement
(does not apply
to
ACV
or
OHM
measurements)
±
nnnnPDDE
t
ddcrlf
CRLF
Terminates
message
Measurement
reading
I
expressed
in
scientific
'
notation
This
format
is
printed
in
the
lower
left
corner
of
the
3455A
front
panel
for
convenience.
The
following
is
an
example of a
data
message
output by
the
3455A:
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