Timer Paced Scans - HP E1313A Manual

Timer Paced Scans

112 Understanding the HP E1313/E1413
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In this mode the Trigger Timer triggers each execution of a scan list. The
trigger timer (t ) can be set from .1 ms up to 6.5 seconds. Of course, t
p
allow time for all channels to be scanned before the next timer trigger;
> (channel count + 3) ∗ t
t
p
range from 10 µs to 32 ms.
The TRIGger:COUNt command controls the number of times any trigger will
be accepted, from 1 to 32767
the module stops scanning until another
executed. Trigger count defaults to 1.
t
p
t
c
t is the sample time between channels.
c
t is the pacing time between channel lists.
p
The large arrow is the pacing Trigger Timer. The smaller arrows are sample
triggers generated by the HP E1313/E1413 when stepping through the
channel list. The first large arrow is the arming event.
Example Command Sequence
>,(@101,103,105,107) <n> can be 1 - 4.
ROUT:SEQ:DEF LIST< n
n
ROUT:SCAN LIST< >
n t
SAMP:TIM LIST< >,< >
c
TRIG:SOUR TIM
TRIG:TIM:PER < t >
p
TRIG:COUN < count >
ARM:SOUR < source >
INIT:IMM
Starting
ARM event, either hardware or software
Acquisition starts
Stopping Before Trigger Count is Reached
TRIG:SOUR HOLD
TRIG:IMM
or
ABORt
+ 30µs. The sample timer controls t
c
or INFinite . When the trigger count is exhausted,
INITiate - ARM
<n> can be 1 - 4.
<t > can be 10µs to 32.768ms.
c
<t > can be .1ms - 6.5536 s.
p
<count> can be 1 - 32768 or INF.
<source> can be BUS, EXT, HOLD,
IMM, or TTLTrg0 - TTLTrg7.
Stops at end of scan list, still
initiated.
One more scan, now idle.
Stops immediately (must use
ABOR if TRIG:COUNt is INF).
must
p
in the
c
- TRIGger sequence is
=Trigger Count
Channel Number
Chapter 4