HP 5384A Service Manual

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3-115. The five rightmost switches, As through A1,
set the address of the counter. Table 3-4 shows all
possible address settings and the corresponding ASCII
codes used by some controllers for talk and listen. The
counter is factory set to address 03 as shown in Ta-
ble 3-4. Address 21 is not allowed because that
address is assigned to the controller device.
3-116. AUTOADDRESSING. Autoaddressing is a
method of setting the instrument's address, unique to
HP-IL, and is provided by the HP-85A, HP 41C/CV.
When autoaddressing is enabled, each device in the
loop is assigned an address by the controller. The
assigned address will probably be different from the
factory preset address. The counter, for example, has
a preset address of 03. If the counter is the only device
in the loop with the controller, the controller will
assign it an address of "1 ". The address permits the
controller to specify or select a particular device in
the loop when sending commands. As shown in
Figure 3-11, addresses are assigned to particular
devices sequentially around the loop in the direction
of information flow. The first device after the con-
troller is assigned an address of "1". The second
device is assigned the address of "2", and so on
around the loop. The controller has an address of "0".
PRINTER
LISTENER
FREQUENCY
COUNTER
TALKER
LISTENER
ADDRESS 4
Figure 3-11. Typical HP-IL System Addressing
3-117. The interface status of the counter is indi-
cated on the front panel by an arrow appearing above
the REM ADRD labels on the front panel.
3-118. INTERFACE COMMANDS
3-119. The commands that the counter recognizes
can be separated into two classes: device dependent
commands and device independent commands. De-
vice dependent commands are those that are unique
to the instrument and are defined by the instrument
designer. They are normally sent to an instrument as
ASCII strings. A detailed description of device de-
pendent commands begins in paragraph 3-138, De-
vice Dependent Commands.
HP 5384A and HP 5385A ~!jlf:.
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Table 3-4. Address Selection
Rear panel address switch:
ADDRESS
16 8
4 2
1
•
1
0000088
0
A7
A6 As A4
A3
A2 A1
L LNOT USED
FOR INTERNAL TESTS
(Shown in addressable mode, and address 03)
NOTE
*Select the decimal address from the table below
and set the address switches to the corresponding
positions.
ASCII CODE
ADDRESS SWITCHES
5-BIT
CHARACTER
DECIMAL
LISTEN TALK
As
A4
A3
A2
A1
CODE
SP @
0 0 0
0
0 00
l A
0 0 0
0
1
01
"
B
0 0 0
1 0
02
#
c 0 0 0
1 1
03
$ D
0 0 1
0 0
04
% E
0 0 1
0 1
05
& F
0 0 1
1
0
06
,
G 0 0 1
1 1
07
( H
0 1 0
0 0
08
)
I 0 1
0
0
1
09
*
J
0
1
0
1 0
10
+
K
0
1
0 1 1
11
I
L
0
1 1
0 0
12
-
M
0 1 1
0 1
13
N 0 1 1
1
0 14
I
0
0
1 1
1 1
15
0
p
1
0 0
0 0
16
1
Q
1
0 0
0
1
17
2 R 1
0 0 1
0
18
3
s
1
0 0
1 1
19
4
T 1 0 1
0 0
20
5 u 1
0
1
0
1
21
6
v
1
0 1
1
0
22
7
w
1
0
1
1 1
23
8 X 1
1
0 0 0
24
9
y
1 1
0
0
1
25
z
1 1
0
1
0
26
;
[
1 1
0
1 1
27
<
\ 1 1
1
0
0
28
=
l
1 1
1
0 1
29
>
-
1 1
1 1 0
30
3-13

HP 5384A Specifications

General

Brand	HP
Model	5384A
Category	Cash Counter
Language	English