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NSTALLATION
AND
OPERATION
6.
On
the talker
generator,
press the
[
t
]
STEP
or
[
|
]
STEP
keys.
Each
lime
the
key
is
pressed, the
frequency of both generators
increases or decreases
by
i.25
kHz
(the
Frequency
Step)
at
frequencies
15
MHz
apart.
Different functions
on
each generator can
be
programmed
to
track
in
the master-slave
configuration. In other
words,
while the
master generator can be
programmed
to step increase
25
kHz FM,
the slave
generator can be
programmed
to step
25%
AM.
NOTE
To use
the step
feature
for
other functions,
change
the step
function
on
the
generators
to
the desired functions.
2-41.
PROGRAMMING
EXAMPLE
3
In the
following
example,
the
Generator
is
programmed
by
a
Fluke
1722A
Instrument
Controller
(via
the
IEEE-488
bus)
to
the
same
state as
in
Programming Example
1.
Additionally, the
frequency
step
size
is
set
to
1
.25
kHz, and
the
trigger
buffer
is
programmed
to
execute
the step
up
command
when
the
trigger
command
is
received.
The
SRQ
mask
of the
Generator
is
set
to
generate
an
SRQ
when
the
RF
output has
settled
and
the
Generator
is
ready
for
more
input
from
the
bus.
The program
then
enters a
loop where
it
waits for the
ready
SRQ,
sends
the
GET
(group
execute
trigger) interface
message
to step
up
the
frequency,
and
waits again.
At
this
time,
do
the following;
1
.
Connect
the
Generator
to the controller
with an
IEEE-488
cable.
2.
Set the rear panel
addre.ss
switch of the
Generator
as follows:
0000011
3.
Enter the following
program
into the controller:
20
100
no
120
121
130
140
150
160
170
IBO
190
300
310
320
800
810
820
830
850
860
870
999
!
Fluke
1722A
BASIC program
to
control
a
6062A.
!
The
address
of the
6062A
is 7»
A% =
77.
!
Clear
the
6062A
so
that
it is
in
a
known
state.
INIT
PORT
0
REMOTE
SA7.
\
CLEAR
®A7.
'
Set the 606SA.
PRINT
@A%,
-FR210I1Z/
AP6DB.MR1, FM5KZ-
FIl.
AM15PC, AEl"
!
Set the
freq^uency step<
output valid
mode>
!
and
configure
the trigger buffer.
PRINT
®AX.
*'FS1.25K2.
VMirCTSU"
!
Set the SRQ mask
to
enable "output valid" SRQ
PRINT
eA7..
"SM16"
I
Wait
for
above commands
to
finish processing
WAIT 1000
\
S% « SPL
<AX>
!
Trigger
the
first
step
up
TRIO
lA5i
!
Wait
for
SRQ
ON SRQ GOTO BOO
WAIT FOR SRQ
OFF SRQ
!
Check
the
serial poll response
S7.
= SPL(A7.)
IF
(S7.
AND
647.+
i67.>
(
>
807,
THEN PRINT
s7.;
*'
Bad Serial Poll
!
Trigger
the
next
step
up
TRIG
eA7.
i
Resume operation
—
waiting
for
next SRQ
RESUME 300
END
iesponse'
4.
Run
the
program
by typing
on
the controller
"RUN
(RETURN)".
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