California Instruments 801RP Series Manual do Utilizador descarregar pdf (Página 160)

AMETEK Programmable Power MX / RS Series SCPI Programming Manual

160 MX / RS Series

6.7.2 Pre-event and Post-event Triggering [3Pi Controller Only]

The range for this offset is:

MX Series I: -104 msec to 1000 msec in single-phase mode or -312 msec to 1000 msec

in three-phase mode (at the highest available sample rates).

MX Series II and RS Series: -42.6 msec to 1000 msec in single-phase mode or –128 msec

to 1000 msec in three-phase mode (at the highest available sample rates).

As shown in the following figure, when the offset is negative, the values at the beginning of

the data record represent samples taken prior to the trigger. When the value is 0, all of the

values are taken after the trigger. Values greater than zero can be used to program a delay

time from the receipt of the trigger until the data points that are entered into the buffer are

valid.

(Delay time = Offset × Sample period)

4096 DATA POINTS

Time

Acquisition

Trigger

Moment

Offset =

1000 msec

Offset = - -104 msec

Offset = - 54 msec

Offset = 0 msec

4096 DATA POINTS

Figure 6-4: Pre-event and Post-event Triggering

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California Instruments 801RP Series Manual do Utilizador Página 160