Making Multiple Scans
This program scans a channel list multiple times.
10
!
Dimension a computer array to store the readings.
20
DIM Rdgs(1:20)
30
!
Clear and reset the multimeter.
40
CLEAR 70903
50
OUTPUT 70903;"*RST"
60
!
Configure the multimeter for DC voltage measurements. Scan the
70
!
channel list five times.
80
OUTPUT 70903;"CONF:VOLT:DC (@100:103)"
90
OUTPUT 70903;" TRIG:COUN 5"
100
OUTPUT 70903;"READ?"
110
!
Enter and display the readings on the computer.
120
ENTER 70903;Rdgs(*)
130
FOR
I
=1 TO 20 STEP 4
140
PRINT Rdgs(
I
),Rdgs(
I
+1),Rdgs(
I
+2),Rdgs(
I
+3)
150
NEXT
I
160
END
Comments
•
For the scanning multimeter,
CONFigure
sets one scan (pass)
through the channel list. The
TRIGger:COUNt
command can specify
up to 16,777,215 scans.
•
The multimeter makes one measurement per channel per scan.
However, multiple measurements per channel (per scan) can be
made when scanning a single channel. The number of measurements
taken during a single channel scan is set with the
SAMPle:COUNt
command.
•
The multimeter output buffer can hold eight readings. When the
buffer fills, measurements are suspended until readings are read from
the buffer (by the computer) to make space available.
Chapter 3
Using the HP E1326B/E1411B Multimeter 47
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