To Next Page

To Previous Page

ROUTe

:CHANnel:FWIRe {OFF|ON} [,(

@<ch_list>)]

:CHANnel:FWIRe? [(

@<ch_list>)]

This command is valid only when the internal DMM is disabled or

removed from the HP 34970A.

Configure the list of channels for 4-wire external scanning without the

internal

DMM. When enabled, the instrument automatically pairs

channel n with channel n+10 (34901A) or n+8 (34902A) to provide the

source and sense connections. For example, make the source connections

to the

HI and LO terminals on channel 2 and the sense connections to

the

HI and LO terminals on channel 12. Specify the paired channel in

the lower bank (source) as the scan_list channel.

Note that the ROUT:CLOSe, ROUT:CLOSe:EXCL, and ROUT:OPEN

commands ignore the current ROUT:CHAN:FWIRe setting (if no channels

are in the scan list).

The :FWIR? query returns a “0” (4-wire pairing disabled) or “1” (4-wire

pairing enabled) for each channel in the scan list.

INSTrument

:DMM {OFF|ON}

:DMM?

Disable or enable the internal

DMM. When you change the state of the

internal

DMM, the instrument issues a Factory Reset (*RST command).

The :DMM? query returns the state of the internal DMM. Returns “0”

(disabled) or “1” (enabled).

INSTrument:DMM:INSTalled?

Query the instrument to determine if the internal

DMM is installed.

Returns “0” (not installed) or “1” (installed).

Chapter 5 Remote Interface Reference

Scanning With an External Instrument

243

HP 34970A User Manual

Questions and Answers: