Table of Contents
Advertisement
Multiple High-Speed Scans
54
Using the HP E1326B/E1411B Multimeter
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
This example shows how a scanning multimeter consisting of the HP E1326B
multimeter and HP E1351A FET multiplexer is programmed for multiple scans
at a 13 kHz rate. The program scans 16 channels 100 times.
10
! Dimension a controller array to store the readings.
20
DIM Rdgs(1:1600)
30
! Reset the multimeter, turn monitor mode off, and then download the
40
! channel list to the FET multiplexer.
50
OUTPUT 70903;"*RST"
60
OUTPUT 70903;"*OPC?"
70
OUTPUT 70903;"DIAG:FETS 1"
80
ENTER 70903;Rst_done
90
OUTPUT 70903;"DISP:MON OFF"
100
OUTPUT 70903;"CONF:VOLT:DC 7.27,MAX,(@100:115)"
110
! Configure the multimeter for a burst of measurements. Specify a fixed
! range (7.27), a 10 µs aperture time (MAX), turn autozero off, and set a
120
! 76 µs sample period (SAMP:TIM MIN). The number of measurements
130
140
! (sample count) is determined by multiplying the number of channels times
150
! the number of scans. In this example, 16 channels are scanned 100 times.
160
! Wait for the configuration to complete.
170
OUTPUT 70903;"CONF:VOLT:DC 7.27,MAX"
180
OUTPUT 70903;"
190
OUTPUT 70903;"
200
OUTPUT 70903;"
210
OUTPUT 70903;"
220
OUTPUT 70903;"*OPC?"
230
ENTER 70903;Complete
240
! The following commands set the FET multiplexer scanning configuration
250
! by writing directly to the multiplexer registers. Specifically, the first
260
! command transfers control of the scan from the multimeter to the user.
270
! The second command enables digital bus triggering, continuous scanning,
280
! and sets the pointer to the beginning of the scan list. The third command
290
! transfers control back to the multimeter. The fourth command closes the
300
! first channel in the list.
310
OUTPUT 70900;"VXI:WRITE 25,4,8"
320
OUTPUT 70900;"VXI:WRITE 25,6,26"
330
OUTPUT 70900;"VXI:WRITE 25,4,0"
340
OUTPUT 70900;"VXI:WRITE 25,4,16"
350
OUTPUT 70900;"*OPC?"
360
ENTER 70900;Complete
Continued on Next Page
CAL:ZERO:AUTO OFF"
SAMP:COUN 1600"
SAMP:SOUR TIM"
SAMP:TIM MIN"
Chapter 3
Advertisement
Table of Contents
