Agilent Technologies Agilent 34980A, User Manual

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28 34980A User’s Guide
2
Features and Functions
2-Wire Versus 1-Wire Mode
You can configure the 34923A, 34925A, and 34933A modules for 2- wire
(differential) or 1- wire (single ended) measurements. If you change the
module configuration, you must cycle power on the 34980A to activate the
new setting.
• To determine whether the module is in the 2- wire or 1- wire
configuration, check the module description shown on the front panel
when the module is selected, or send the
SYSTem:CTYPe?
or
SYSTem:CDEScription?
command. For example, the
SYSTem:CTYPe?
response for the 34923A will be either “34923A” (differential mode) or
“34923A- 1W” (single- ended mode).
• If you are using terminal blocks with these modules, be sure to use the
corresponding 2- wire or 1- wire terminal block.
• The module configuration is stored in non- volatile memory on the
module and does not change when you remove the module from the
mainframe, after a Factory Reset (
*RST
command), or after an
Instrument Preset (
SYSTem:PRESet
command).
Front Panel Operation:
Module (Configure) > MODE NEXT POWER-ON
After selecting the 2- wire (“WIRE2”) or 1- wire (“WIRE1”), you must cycle
power on the 34980A to activate the new setting.
Remote Interface Operation:
The following command selects the 1- wire
configuration on the module in slot 3. The new configuration will not take
effect until you cycle power on the 34980A.
SYST:MOD:WIRE:MODE WIRE1,3