Model 5340A
Installation and Remote Programming
b.
Octave Ranges
-
The 5340A can be made to operate in
a
particular octave range by send
-
ing
it
the proper ASCII character. This feature can save up to
110
msec of search time
when the signal to be measured
is
in one of the octave ranges. When
a
controller wants
to take control
of
the 5340As operation,
it
only changes those cells where initial con
-
ditions are different than the desired program. Program information may be sent in any
sequence. The
5340A
will
not make
a
measurement if there is either no signal in the
selected range or there
is
one with
a
larger amplitude in some other range. When AUTO
is selected, the
5340A automatically sweeps through all ranges until
it
finds the signal
to be measured.
c.
Sample Rate Modes
(1)
Internal Sample Rate
-
Sample rate time
is
determined by the 5340A’s SAMPLE
RATE control.
(2)
Hold
-
The 5340A waits in the Sample Rate phase of its operating cycle until
made
to
continue by either
a
SAMPLE TRIGGER instruction, a RESET in
-
struction or the front panel RESET pushbutton
is
depressed.
d.
Sample Trigger Instruction
-
Is
intended to be used in conjunction with the SAMPLE
RATE HOLD mode. It makes the
5340A leave the Sample Rate HOLD phase of
its
operating cycle and make
a
measurement. Sample trigger does not reset the display nor
does it initialize the phase locked loops (make the
5340A go through
its
search pro
-
cedure). The 5340A will ignore the Sample Trigger instruction unless it is waiting in
the Sample Rate phase of
its
operating cycle.
Reset Instruction
-
Clears the display, initializes the phase locked loops and
starts
a new
measurement procedure.
It may be sent
at
any time in the 5340A’s operating cycle. A
reset instruction does not initialize the remote program storage cells
as
does the front
panel RESET pushbutton. The
5340A obeys the Reset instruction if addressed to
LISTEN whether in local or remote operation.
e.
f. Output Modes
-
A 5340A outputs in one of two modes providing it has been addressed
to TALK.
(1)
ONLY IF addressed (ASCII
“L”
stored in the program storage cell). The 5340A
will output each measurement if it has been addressed to TALK. If not
so
addressed, it bypasses the entire output phase of
its
operating cycle.
(2)
WAIT until addressed (ASCII
“M”
stored in this program storage cell). The
5340A will make
a
measurement then wait in the output phase of its oper
-
ating cycle until it is addressed to TALK. As soon
as
it
is
so
addressed,
it
will
output and continue according to the information in
its
program storage cells.
Notice that the
5340A ALWAYS outputs when
it
reaches the output phase of its oper
-
ating cycle IF it has been addressed to TALK. When programmed ONLY IF, the 5340A
continues
to
go
through its operating cycle bypassing the Output phase until addressed
to
TALK. When programmed
to
WAIT, the 5340A will stop
at
its
output phase and
stay
there until addressed to TALK.
g. Local
-
Remote
(1)
Local
-
The 5340A operates according to its front panel controls.
(2) Remote
-
Used in conjunction with the control line REN (Remote Enable) to
have the
5340A operate according to the information in its program storage
cells.
.
’
’:
j
‘i
h. Reset Pushbutton/Power Up
When power
is
first
turned on (Power UP) or the front panel RESET pushbutton
is
de
-
pressed, the 5340A performs according to
its
front panel controls. However, it has stored
2
-
14
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