Externally Paced Scans - HP E1313A Manual

Externally Paced
Scans
114 Understanding the HP E1313/E1413
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
This mode is much like the Timer Paced Scans except the trigger source is
external to the HP E1313/E1413. The trigger could come from a software
command such as
TRIGger
Trigger input or one of the VXIbus TTLTRG lines.
t
c
trigger
t is the sample time between channels.
c
The large arrows are the Trigger events. The smaller arrows are sample triggers
generated by the HP E1313/E1413 when stepping through the channel list.
Example Command Sequence
n >,(@101,103,105,107) <n> can be 1 - 4.
ROUT:SEQ:DEF LIST<
n
ROUT:SCAN LIST< >
SAMP:TIM LIST< n >,< t >
c
TRIG:SOUR < source >
TRIG:COUN < count >
INIT:IMM
Starting
Trigger event, either hardware or software
Acquisition starts
Stopping Before Trigger Count is Reached
Remove Trigger Source
or
TRIG:SOUR HOLD
TRIG:IMM
or
ABOR
, or a hardware trigger from either the External
trigger
trigger
<n> can be 1 - 4.
<t > can be 10µs to 32.768ms.
c
<source> can be BUS, EXT,
HOLD, or TTLTrg0 - TTLTrg7.
<count> can be 1 - 32768 or INF.
Stops at end of scan list, still
initiated.
Stops at end of scan list, still
initiated.
One more scan, now idle.
Stops immediately (must use
ABOR if TRIG:COUNt is INF).
=Trigger Count
Channel Number
Chapter 4