DMM (Digital Multimeter)

Digital multimeters.

Instrument and Abstract Driver

InstroDMM	Digital multimeter instrument.
DMMDriverBase	Vendor DMM driver contract.

Vendor Drivers

Vendor	Model	Description
Keithley	2400	Keithley 2400 SMU as a sense-only DMM.
Agilent	34401A	Agilent/HP/Keysight 34401A DMM.
Keysight	34461A	Keysight 34461A Truevolt DMM.
Fluke	8845A (unstable)	Fluke 8845A 6.5-digit DMM, driven through its Agilent 34401A-compatible 8845 command set.

Simulated Drivers

VirtualDMM	DMM simulated in-process: no transport, server, or hardware.
SimulatedDMM	Client for the in-process simulated DMM SCPI server.

Types & Configuration

MeasurementFunction	DMM measurement function (mode).
RangeMode	DMM range mode published on range_mode.cmd.
DMMMeasurementConfig	DMM acquisition config.
DMMConfig	Validated config for constructing an InstroDMM from JSON.
MeasurementConfig	Initial measurement state, applied through the InstroDMM setters on open().
VisaDriverConfig	Driver config for a VISA-connected DMM.
resolve_dmm_from_config	Resolve a validated DMMConfig into the (name, driver, config_publishers, poll_interval) InstroDMM needs.

Shared configuration

Class	Description
DeviceInfo	Device metadata.
TimingConfig	Timing configuration for instrument background polling.
NominalCorePublisherConfig	Publisher config for streaming to a Nominal Core dataset.
FilePublisherConfig	Publisher config for writing measurements to a local file.

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Errors raised by these methods are documented in Exceptions.