HP 3438A - Addressable to Talk Mode

Model 3438A
ADDRESS
SWITCHES
ADDRESSABLE TALK ONLY AS7
OPERATE TEST AS6
0
AS5
0
AS4
0
0 AS2
0
'7
SWITCHES MAY BE
SET IN ANY POSITION
FRONT ~~~EA-B-s
Figure 3-10. Talk Only Switch Settings.
3-34. In the Talk Only mode with no other devices
connected to the Multimeter, the Multimeter inputs are
sampled continuously at a rate of
2.4-4.7/sec
determined by the exact input level. Data is output at the
HP-IB terminal
asjasr as it is obtained. Refer to Table
3-2.
Table 3-2. Output Delays.
"After 100 rns Auto Zero
Bus Commands
Group Execute
Trlgger (GET1
Dual Slope Convers~on
Multlmeter Output Avallablllty
GET thru Output Availability'
T~rne to Output Data to the HP-IB
Tlme to Accept Data from the HP-lB
3-35. With other devices connected to the Multimeter via
the HP-IB. the output data rate is determined by the
slowest Listener. The following application shows a
simple data logging system using the
-hp- Model 3438A
Multimeter and the -hp- Model 5150A Thermal Printer.
Tlme Requlred
< 1 msec
< 300 msec
< 9 msec
< 310 rns
< 900 ps + Llstener delay
310 psicharacter,
100 psicharacter typlcal
3-36. Procedure:
a. With both instruments OFF, connect the HP-IB
cable between them.
b. Set Printer to LISTENING (back panel).
c. Set Printer
PRINT COMMAND switch to LF(1ine
feed).
d. Set the Printer front panel to the desired Print
Interval.
NOTE
If' the selected print interval is less than the
Mulritneter output rate, the actual print
interval will be equal to the Multimeter
sample period.
e. Set the PRINT TIME switch to Sep Line (separate
line).
f. Set the Multimeter Address Switch to Talk
Only/Operate as shown in Figure 3-10.
g. Select the desired Multimeter Function and Range
and connect the Multimeter to the unknown voltage,
current, or resistance.
h. Switch both instruments ON and set the printer
clock time (front panel).
The Multimeter TALK
annunciator light should be ON.
3-37. This system will print the Multimeter data and the
Printer clock time. Any HP-IB compatible LISTENER
can be used in place of the
-hp- Model 5150A Printer for
this system.
3-38. If Option 003 is installed in the
5150A Printer, as
many as thirteen
3438A Multimeters can be scanned on
one HP-IB data logger system.
3-39. Addressable to Talk Mode.
3-40. The Addressable to Talk Mode is used in a system
with a controller such as a calculator or computer.
Figure 3-11. Talk Only Data Logger.
3-6
THERMAL PRl NTER MULT IMETER
hp 5150A hp 3438A
= 0 0
000
0 0 Lu
B
P
34381-8- 1
CABLE
w
C 0<
OPTION 001 8
004 INSTALLED
oooonn 00000000 0