ROUTe:CHANnel:FWIRe

Syntax

ROUTe:CHANnel:FWIRe <mode>, (@<ch_list>)

ROUTe:CHANnel:FWIRe? (@<ch_list>)

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:

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

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).

The query command returns "0" (OFF) or "1" (ON) for each channel specified. Multiple responses are separated by commas.

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