User manual

IEEE-488 Reference
4-98 2001-900-01 Rev. K / August 2010
:RATio and :DELTa commands
:FUNCtion <name>
:ROUTe:SCAN:RATio:FUNCtion <name> Select function for Ratio
:ROUTe:SCAN:DELTa:FUNCtion <name> Select function for Delta
Parameters <name> = ‘VOLTage:DC’ DCV function
= ‘RESistance’ 2 function
= ‘FRESistance’ 4 function
Formats :rout:scan:rat:func <name>
:rout:scan:delt:func <name>
Defaults Power-up Saved power-on setup
*RST ‘VOLTage:DC’
:SYSTem:PRESet ‘VOLTage:DC’
Query :FUNCtion? Query function for specified calculation
Short-form formats: :rout:scan:rat:func?
:rout:scan:delt:func?
Response message: “VOLT:DC”, “RES” or “FRES”
The :FUNCtion command is used to select the measurement function for the specified calcula-
tion (Ratio or Delta). Valid measurement functions include DCV, 2 and 4. Note that 4
(four-wire ohms) is only valid for reference and measure channels one through five (see
:RCHannel and :MCHannel).
The function parameters are shown enclosed by single quotes. However, double quotes are also
valid. Example:
‘volt:dc’ = “volt:dc”
Programming example 10 OUTPUT 716; “:rout:scan:rat:func ‘res’; func?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Selects the 2 measurement function for the Ratio calculation and then queries the
function.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the function for Ratio (“RES”).
:RCHannel <list>
:ROUTe:SCAN:RATio:RCHannel <list> Specify reference channel for Ratio
:ROUTe:SCAN:DELTa:RCHannel <list> Specify reference channel for Delta
Parameter <list> = (@ chanlist)
where; chanlist is a single channel number (1 to 10)