Synchronizing Multiple Cards; Continuous (Free-Run) Mode - HP E1313A Manual

Synchronizing Multiple Cards

Continuous
(Free-Run) Mode
Chapter 4
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In this section we show you how to synchronize two or more HP E1313/
E1413s. The examples show two cards but the principles may be extended
to several.
This example shows you how to start two or more cards scanning at the
same time. It shows the cards running in the Continuous Mode
( TRIGger:SOURce IMMediate
Card 1
ARM
Card 2
t is the sample time between channels.
c
The large arrow is the arming event or signal. The smaller arrows
are sample triggers generated by the HP E1313/E1413 when
stepping through the channel list. Sample clocks on each card are
not synchronized to each other.
Example Command Sequence
Card 1
ROUT:SEQ:DEF LIST< n >,(@101,103,105,107) <n> can be 1 - 4.
n
ROUT:SCAN LIST< >
SAMP:TIM LIST< n >,< t >
c
TRIG:SOUR IMM
ARM:SOUR < source >
INIT:CONT ON
Understanding the HP E1313/E1413
and INITiate:CONTinuous ON
t
c
<t > can be 10µs to 32.768ms.
c
<source> can be BUS, EXT,
HOLD, IMM, or TTLTrg0 -
TTLTrg7.
).
Channel Number
115