[SENSe:]FRESistance:APERture:ENABled?
Syntax
[SENSe:]FRESistance:APERture:ENABled? [(@<ch_list>)]
Description
This command queries whether the aperture mode is enabled or disabled for 4-wire resistance measurements on the specified channels. If you omit the optional <ch_list> parameter, this command applies to the internal DMM, independent of any channels or a scan list.
Used With:
34921A Armature Multiplexer
34922A Armature Multiplexer
34923A Reed Multiplexer (differential mode only)
34924A Reed Multiplexer
34925A FET Multiplexer (differential mode only)
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc). |
If <ch_list> is omitted, this command applies to the internal DMM. |
Remarks
Since 2-wire and 4-wire resistance are related functions, changing a measurement parameter for one function will also change the corresponding parameter for the other function (see [SENSe:]RESistance:APERture:ENABled? command).
For 4-wire resistance measurements, the instrument automatically pairs channel n in Bank 1 with channel n+20 in Bank 2 (34921A, 34923A, 34925A) or n+35 (34922A, 34924A) to provide the source and sense connections. For example, make the source connections to the HI and LO terminals on channel 2 in Bank 1 and the sense connections to the HI and LO terminals on channel 22 (or 37) in Bank 2. Specify the paired channel in Bank 1 (source) as the <ch_list> channel (channels in Bank 2 are not allowed in the <ch_list>).
Four-wire measurements are not allowed on the multiplexer modules configured for the single-ended mode (see SYSTem:MODule:WIRE:MODE command).
The CONFigure, MEASure?, [SENSe:]FRESistance:NPLC, and [SENSe:]FRESistance:RESolution commands disable the aperture time mode (these commands select an integration time in number of power line cycles).
Return Format
The query command returns "0" is the aperture mode is disabled or "1" if the aperture mode is enabled for each channel specified. Multiple responses are separated by commas.
Example
The following command returns the state of the aperture mode on channels 3 and 13 in slot 1.
FRES:APER:ENAB? (@1003,1013)
Typical Response: 1,1