Measurement-computing DAC488 v.1 Manuel d'utilisateur télécharger pdf (Page 75)

DAC488 User’s Manual DAC488 Commands 69

I - Interval

TYPE

Port Command

SYNTAX

Ival

Specifies time interval used with the Waveform Control mode, where

val

is the

time value between 1 and 65535 where 1 count = 1 msec.

Returns the current interval.

DESCRIPTION

The Interval command specifies the time interval between each voltage value that is output when in the Waveform

Control mode (C3). The frequency of the output waveform may be controlled by selecting the proper interval based on

the number of voltage points per cycle.

Note: The default value for val is 1000 milliseconds, or 1 second.

EXAMPLE

PRINT#1,"CLEAR09"

Line 1: Reset the DAC488.

PRINT#1,"OUTPUT09;C3

P1 F0,100 G1 N0 L0

I40 X"

Line 2: Select Waveform Control mode, select port 1, define a buffer with the first

location=0 and the number of locations=100, enable port 1 to trigger on GET,

set number of cycles to continuous, set location pointer back to 0 (first location

in the buffer), set the time interval between points to 40 milliseconds.

PRINT#1,"TRIGGER"

Line 3: Trigger the DAC488. A voltage value will be output at port 1 every 40

milliseconds.

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 113 114

Pas de commentaire

Measurement-computing DAC488 v.1 Manuel d'utilisateur Page 75