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Model 8902A
Operation
Sending the Data Message Check (Data Output)
This check determines whether or not the Measuring Receiver properly issues Data messages
when addressed to talk. This check assumes that the Measuring Receiver is able to handshake
and recognize its own address. Before beginning this check, select 40.0
SPCL.
Description
I
HPL
Address the Measuring Receiver to talk
and store its output data in variable V.
(The output is Error 96 since there is no
signal at its INPUT.)
Display the value of V.
Check that the Measuring Receiver's
TALK annunciator is on. The controller's
display should read 90000096000.00 (HP
9825A) or 90000096000 (HP 9835A and
9845A).
red 714V
dsp
V
BASIC
ENTER 714;V
PRINT
V
Receiving the Data Message Check (Data Input)
This check determines whether or not the Measuring Receiver properly receives Data
messages. The Data messages sent also cause the 7 least-significant HP-IB data lines to be
placed in both their true and false states. This check assumes the Measuring Receiver is able
to handshake, recognize its own address, and properly make the remote/local transitions.
Before beginning this check, select 40.0
SPCL.
Description
Send the first part of the Remote
message (enabling the Measuring
Receiver to remote.
Address the Measuring Receiver to listen
(complete the Remote message), then
send
a
Data message (manually tuning
the Measuring Receiver to 1 MHz.
Check that the Measuring Receiver's
REMOTE and LISTEN annunciators are
on.
Check also that its 15 kHz LP FlLTEfi
key light is on and the AUTO TUNING
light is off.
HPL
rem 7
wrt 714,"lMZ"
BASIC
REMOTE 7
OUTPUT 714;"l MZ"
3-62
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