THE TRIGGER MESSAGE
The HP-IB Group Execute Trigger (GET) message, the MN Programming Code
(Manual Trigger) and pressing
the
MAN
key
cause
the
same action
within
the
3314A.
In all cases
the
trigger source
must
be external (Programming Code SR2)
and
the
3314A
must
be addressed
to
Listen before
the
3314A
will
respond. The
3314A
responds
to
the
GET
command
within
2ms. The
3314A
responds
to
MN
within
12ms
. Triggers received
when
the
3314A
is
actively
sweeping or produc-
ing ARB
waveforms
may
take up
to
50ms.
The
following
examples trigger
the
indicated devices.
TRIGGER 7
TRIGGER
707
OUTPUT
707,"MN"
....
Free Run
no
sweep -no action
Triggers all devices on bus 7 (GET)
Triggers
3314A
only
(GET)
Activates
3314A
manual trigger
sweep -Starts
the
sweep. The sweep stops and resets to the
start
frequency, llUtomatlcslly.
-Ignored If the
3314A
Is sweeping.
Gete
no sweep -Gates
Output
ON if trigger slope is positive or ARB and then sets trigger alope to negative.
-Gates
Output
OFF
if
trigger slope is negative and then sets trigger slope to posltlve.
sweep
-Stsrts
the
sweep
end gates
the
output
ON If the aweep is
not
actlve
and
the
trigger slope is
positive end then sets
the
trigger slope to negatlve. The sweep stope, and
the
output
Is
gated OFF, automatlCtllly.
-Bets the
trigger
stope to positive If It Is negative. Used
8S
an arming signal to prepare for
the
next
gate.
N Cycle -Gates N Cycles of the
output
signal ON if
the
output
Is OFF.
-Ignored while the
output
Is ON.
1/2
Cycle -Getes alternate
1/2
cycles of
the
output
signal ON.
An X N -Thls operation Is not useeble
because of the asynchronous nature of the HP-IB.
An / N -This operation Is
not
useable beceuse of the asynchronous nature of the HP-IB.
99
To Next Page
Loading...
Need help?
General
