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SECTION III
Model 4277A
[2]
PACKED BINARY mode (Set using HP-IB
remote program code "PI")
® DISPLAY A/B
1st byte
2iid byte 3rd byte
BB
BB
BBBB
BBBBBBBB BBBBBBBB
(1) (2)
(3)
(4)
4th byte 5th byte
BBBBBBBB BBBBBBBB
(5)
(B:
0 or 1)
(1)
Status of DISPLAY A
(2)
Status of DISPLAY B
(3)
Measurement Range
(4)
Value* of DISPLAY A
decimal point and unit)
(not including
(5)
Value* of DISPLAY B
decimal point and unit)
(not including
* Output data is the binary equivalent of
the measured value.
@ COMPARATOR (Option 002 only)
BB
BB
BBBB
(1) (2)
(3)
(1)
Status of L/C/I Z I
(2)
Status of D/Q/ESR/G
(3)
BIN number
Note
Status
data
of
DISPLAY
A
and
DISPLAY B, measurement range, and
status
and
BIN
number
data
of
Comparator are each represented as a
number, as listed in Table 3-15.
Note
Values displayed on DISPLAY A and
DISPLAY B are output as number of
counts.
Actual measured values are
obtained with measurement range and
output data values.
Note
The EOI signal is output with the last
data byte.
Note
The first byte includes
DISPLAY A
status,
DISPLAY
B
status,
and
measurement range.
The value of the
byte is output in decimal. For example,
DISPLAY A status is OF (1), DISPLAY
B
status
is
"blank"
(3),
and
measurement range
is
5
(see
Table
3-15), the byte will be as shown below.
01 '11
0101
I_I
I_(
I_1
1
3
5
The decimal equivalent of this is 117.
This is the value that will be output.
Figure 3-25. Data Output Format for the 4277A (Sheet 2 of 2).
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