Programming Example - Keithley 2750 User Manual

Model 2750 Multimeter/Switch System User's Manual
Reference
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Programming example

The following program fragment triggers (and stores in the buffer) 10 readings. Note that
in order to send the readings to the computer, you must address the Model 2750 to talk
after sending READ?.
*RST
TRAC:CLE
TRIG:DEL 0.5
SAMP:COUN 10
READ?
ABORt
With continuous initiation disabled, the 2750 goes into the idle state. With continu-
ous initiation enabled, operation continues at the top of the trigger model.
INITiate
Whenever the instrument is operating within the trigger model, sending this com-
mand causes an error and will be ignored.
INITiate:CONTinuous <b>
With continuous initiation enabled, you cannot use the READ? command or set
sample count (SAMPle:COUNt) greater than one.
FETCh?
READ?
See Section 3, Section
trigger and retrieve readings.
NOTE
[SENSe[1]]:DATA[:LATest]? and [SENSe[1]]:DATA:FRESh? can be
used to retrieve the last reading. These commands are also explained in
Section 3, Section
TRIGger:SOURce <name>
With the timer control source selected, use the TRIGger:TIMer command to set the
interval.
DELay:AUTO <b>
The auto delay times are listed in
time to 0.
TRIGger:SIGNal
Send this action command to bypass the control source when you do not wish to
wait for the programmed event to occur. The instrument must be waiting at the con-
trol source for the event when this command is sent. Otherwise, an error occurs and
the command is ignored.
SAMPle:COUNt
A sample count >1 specifies how many readings will automatically be stored in the
buffer. However, with continuous initiation enabled, you cannot set the sample
count greater than one.
13, and Appendix D for details on using these commands to
13, and Appendix
Table 8-1. Disabling auto delay sets the delay
' Restore *RST defaults.
' Clear buffer.
' Set delay for 0.5sec.
' Set sample count to 10.
' Trigger, store, and request readings.
Triggering
D.
8-17