Downloading A Scan List - HP E1351A User Manual

Example: Making
Multiple Scans
Example: Making
Continuous Scans
Comments

Downloading a Scan List

Chapter 3
The number
ARM:COUNt <
switchboxes with non-downloaded scans. It does not apply when the
TRIGger:SOURce is DBUS
Add the command before the
example in this section. When the last channel in a channel list is closed,
the pointer is reset back to the beginning of the channel list. The next
trigger opens the last channel and closes the first one. This continues for the
specified number of cycles.
59 OUTPUT 70914;"ARM:COUN 10"
60 OUTPUT 70914;"SCAN (@100:215)"!Sets scan list
80 FOR I = 1 TO 320
The
INITiate:CONTinuous ON
( disables continuous scanning cycles). Add the command
INIT:CONT OFF
to the first program example in this section, as follows:
59 OUTPUT 70914;"INIT:CONT ON"
60 OUTPUT 70914;"SCAN (@100:215)"!Sets scan list
80 FOR I = 1 TO X
Scanning consists of six steps:
•
Connecting the multimeter to the switchbox
•
Selecting the SCAN:MODE
•
Selecting the SCAN:PORT
•
Selecting the
TRIGger:SOURce
•
Specifying the SCAN <
•
Starting the scan (
The FET Multiplexer Module is primarily designed to be used as a
high-speed scanning switchbox or scanning voltmeter. To enable it to make
100,000 connections per second, the
downloaded into RAM on the module. This download takes place
automatically when you use
IMM . For a multiple-module switchbox, the entire scanning list is
downloaded to each module. The channels are advanced to the next channel
in the channel list without any direct intervention by the mainframe CPU
during the scan.
The scan list is not downloaded for a switchbox or scanning voltmeter that
combines both FET and relay multiplexer modules, or for
TRIGger:SOURce BUS | EXT | HOLD
by the mainframe CPU. Also, the
not apply to downloaded scan lists. You can use
for continuous scanning with downloaded scan lists.
Using the HP E1351A/53A FET Multiplexer Modules
command selects multiple scanning cycles for
>
or IMMediate .
channel_list
SCAN <
!Enables 10 scanning cycles
command selects continuous scanning cycles
!Enables continuous scanning
cycles
!Set the number of measurements
desired
channel_list >
INIT or TRIG[:IMMediate]
SCAN < channel_list
TRIGger:SOURce DBUS
. The channel closings are controlled
ARM:COUNt <
in the first program
>
)
> scanning list is
or
TRIGger:SOURce
number > command does
INITiate:CONTinuous ON
39