Keithley 2790, Reference Manual

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10-12 Model 2790 SourceMeter
®
Switch System Reference Manual
<n>
Numeric value — A numeric value parameter can consist of an NRf num-
ber or one of the following name parameters; DEFault, MINimum,
MAXimum. When the DEFault parameter is used, the instrument is pro-
grammed to the *RST default value. When the MINimum parameter is
used, the instrument is programmed to the lowest allowable value. When
the MAXimum parameter is used, the instrument is programmed to the
largest allowable value. Examples:
ARM:TIMer 0.1 Sets timer to 100 msec.
ARM:TIMer DEFault Sets timer to 0.1 sec.
ARM:TIMer MINimum Sets timer to 1 msec.
ARM:TIMer MAXimum Sets timer to 99999.99 sec.
<clist>
Channel list — Specify one or more channels. Example:
ROUTe:SCAN (@101:110) 7702 scan list; slot 1, channels 1-10
<list>
List — Specify one or more numbers for a list. Example:
STATus:QUEue:ENABle (-110:-222) Enable errors -110 through -222
Angle brackets < >
Angle brackets (< >) are used to denote a parameter type. Do
not include the brackets in the program message. For example:
RATio <b>
The <b> indicates a Boolean-type parameter is required.
Therefore, to enable channel ratio, you must send the com-
mand with the ON or 1 parameter as follows:
RATio ON
RATIO 1
Query commands
This type of command requests (queries) the presently programmed status. It is identified
by the question mark (?) at the end of the fundamental form of the command. Most com-
mands have a query form:
TRIGger:TIMer? Queries the timer interval.
Most commands that require a numeric parameter (<n>) can also use the DEFault,
MINimum, and MAXimum parameters for the query form. These query forms are used to
determine the *RST default value and the upper and lower limits for the fundamental com-
mand. Examples are:
TRIGger:TIMer? DEFault Queries the *RST default value.
TRIGger:TIMer? MINimum Queries the lowest allowable value.
TRIGger:TIMer? MAXimum Queries the largest allowable value.