THE TRIGGER MESSAGE
The HP-IB Group Execute Trigger (GET) message
,
the MN Programming Code
(Manual Tr
igger)
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
-
no action
Triggers all devices on bus 7 (GET)
Triggers 3314A only (GET)
Activates 3314A manual trigger
sweep
-Starts
the
sweep
.
sweep stops and resets to the start frequency
,
llUtomatlcslly.
-
Ignored
I
f the 3314A
I
s sweeping
.
Gete
no sweep
-Gates Output ON if trigger slope
i
s posit
ive
or ARB
then
alope to negative.
-
Gates Output OFF if trigger slope is negative and then sets trigger slope to
sweep
-Stsrts
the
output ON If
the aweep
not
actlve and the
is
to negatlve.
The
stope, and
the
Is
OFF, automatlCtllly.
-Bets
the
stope to
I
f
It
Is negative
.
Used
8S
an arming signal to prepare for
next
gate.
N Cycle
-Gates N Cycles of the output
ON
if
the
Is OFF.
-Ignored while the output
Is ON.
1/2 Cycle
-
Get es alternate 1/2 cycles of
the
ON
.
An X N
-
Th ls operation Is not useeble
of
asynchronous nature of the HP-IB
.
An / N
-Th
is
operation Is not
beceuse of the asynchronous nature of
HP-
IB.
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