Keithley 2001 Operator's Manual page 255

Description
Programming example
2001-900-01 Rev. K / August 2010
These commands are used to assign measurement functions for internal channels (e.g. Model 2001
SCAN) or external channels. You can assign a unique measurement function to each of channel. The
function parameter specifies the measurement function for the channels specified by the channel list
(chanlist).
The following examples demonstrate the various forms for expressing the channel list:
List = (@ 5) Single channel.
= (@ 2,4,6) Multiple channels separated by commas (,).
= (@ 1:10) Range of channels (1 though 10). Range limits separated by a colon (:).
= (@ 1:5,7) Range entry and single entry separated by a comma.
The function parameter specifies the measurement function for the channels listed in the chanlist. As a
scan is being performed, the Model 2001 will select the specified measurement function for each channel
in the scan.
Any measurement function, except current (ACI and DCI), can be used for internal scanning. Note that
the Keithley Model 2001 SCAN scanner card cannot be used to make thermocouple temperature mea-
surements. Any measurement function can be used for external scanning (assuming you are using the ap-
propriate switching card).
Channels 6 through 10 cannot be selected when the TEMPerature function parameter is selected and is
using a 4-wire RTD sensor type.
With the NONE function parameter selected, the channels specified in the chanlist will be not be scanned.
This will not change the defined scan list, it will simply cause the specified channels to be skipped.
With the ALTernate function parameter selected, the specified channels in the chanlist will be measured
according to the saved alternate setup conditions. An alternate setup is saved using the
[:SENSe[1]]:ALTernate SAVe command (see Sense subsystem).
10 OUTPUT 716; ":syst:pres"
20 OUTPUT 716; ":rout:scan:func (@ 1,3,5,7), 'volt:dc'"
30 OUTPUT 716; ":rout:scan:func (@ 2,4,6,8), 'res'"
40 OUTPUT 716; ":rout:scan:func (@ 9,10), 'none'"
50 END
Line 10 :SYSTem:PREset defaults; all ten channels in scan list.
Line 20 Assigns the DCV function to channels 1, 3, 5 and 7.
Assigns the 2 function to channels 2, 4, 6 and 8.
Line 30
Line 40 Masks channels 9 and 10. These channels will not be scanned.
NOTE
IEEE-488 Reference
4-97