ROUTe:CHANnel:FWIRe
Syntax
ROUTe:CHANnel:FWIRe <mode>, (@<ch_list>)
ROUTe:CHANnel:FWIRe? (@<ch_list>)
Description
This command configures the specified channels for 4-wire external scanning without the internal DMM.
This command is valid only when the internal DMM is disabled (see INSTrument:DMM[:STATe] command) or removed from the Agilent 34980A. |
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 |
<mode> |
Boolean |
{OFF|0|ON|1} |
This is a required parameter |
<ch_list> |
Numeric |
One or more channels in the form (@sccc). |
This is a required parameter |
Remarks
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>).
The ROUTe:CLOSe, ROUTe:CLOSe:EXCLusive, and ROUTe:OPEN commands ignore the current ROUTe:CHANnel:FWIRe setting (if no channels are in the scan list).
Four-wire measurements are not allowed on the multiplexer modules configured for the single-ended mode (see SYSTem:MODule:WIRE:MODE command).
Return Format
The query command returns "0" (OFF) or "1" (ON) for each channel specified. Multiple responses are separated by commas.
Examples
The following command configures channels 3 and 13 in slot 1 for 4-wire external scanning.
INST:DMM OFF !Disable
internal DMM
ROUT:CHAN:FWIR ON,(@1003,1013)
!Enable
4-wire configuration
The following query returns the 4-wire configuration selected on channels 3 and 13 in slot 1.
ROUT:CHAN:FWIR? (@1003,1013)
Typical Response: 1,1