[python source code]

select

The select commands module.

These commands are used in the following models: MSO2

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Commands and Queries 
- SELect:CH<x> {ON|OFF|1|0}
- SELect:CH<x>?
- SELect:DCH<x>:DAll {ON|OFF|<NR1>}
- SELect:DCH<x>:DAll?

Select

Bases: SCPICmdRead

The SELect command tree.

Usage
  • Using the .query() method will send the SELect? query.
  • Using the .verify(value) method will send the SELect? query and raise an AssertionError if the returned value does not match value.
Properties
  • .ch: The SELect:CH<x> command.
  • .dch: The SELect:DCH<x> command tree.

ch property 

ch: dict[int, SelectChannel]

Return the SELect:CH<x> command.

Description
  • Turns the display of the channel waveform on or off, where is the channel number. This command also resets the acquisition. The query returns whether the channel is on or off but does not indicate whether it is the specified waveform.
Usage
  • Using the .query() method will send the SELect:CH<x>? query.
  • Using the .verify(value) method will send the SELect:CH<x>? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the SELect:CH<x> value command.
SCPI Syntax 
- SELect:CH<x> {ON|OFF|1|0}
- SELect:CH<x>?
Info
  • ON turns on the display of the specified waveform. This waveform also becomes the selected waveform.
  • OFF turns off the display of the specified waveform.
  • 1 turns on the display of the specified waveform. This waveform also becomes the selected waveform.
  • 0 turns off the display of the specified waveform.

dch property 

dch: dict[int, SelectDchItem]

Return the SELect:DCH<x> command tree.

Usage
  • Using the .query() method will send the SELect:DCH<x>? query.
  • Using the .verify(value) method will send the SELect:DCH<x>? query and raise an AssertionError if the returned value does not match value.
Info
  • DCH<x> specifies the digital channel. The supported value is 1.
Sub-properties
  • .dall: The SELect:DCH<x>:DAll command.

SelectChannel

Bases: ValidatedChannel, SCPICmdWrite, SCPICmdRead

The SELect:CH<x> command.

Description
  • Turns the display of the channel waveform on or off, where is the channel number. This command also resets the acquisition. The query returns whether the channel is on or off but does not indicate whether it is the specified waveform.
Usage
  • Using the .query() method will send the SELect:CH<x>? query.
  • Using the .verify(value) method will send the SELect:CH<x>? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the SELect:CH<x> value command.
SCPI Syntax 
- SELect:CH<x> {ON|OFF|1|0}
- SELect:CH<x>?
Info
  • ON turns on the display of the specified waveform. This waveform also becomes the selected waveform.
  • OFF turns off the display of the specified waveform.
  • 1 turns on the display of the specified waveform. This waveform also becomes the selected waveform.
  • 0 turns off the display of the specified waveform.

SelectDchItem

Bases: ValidatedDynamicNumberCmd, SCPICmdRead

The SELect:DCH<x> command tree.

Usage
  • Using the .query() method will send the SELect:DCH<x>? query.
  • Using the .verify(value) method will send the SELect:DCH<x>? query and raise an AssertionError if the returned value does not match value.
Info
  • DCH<x> specifies the digital channel. The supported value is 1.
Properties
  • .dall: The SELect:DCH<x>:DAll command.

dall property 

dall: SelectDchItemDall

Return the SELect:DCH<x>:DAll command.

Description
  • This command turns on or off all constituent digital channels.
Usage
  • Using the .query() method will send the SELect:DCH<x>:DAll? query.
  • Using the .verify(value) method will send the SELect:DCH<x>:DAll? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the SELect:DCH<x>:DAll value command.
SCPI Syntax 
- SELect:DCH<x>:DAll {ON|OFF|<NR1>}
- SELect:DCH<x>:DAll?
Info
  • DCH<x> specifies the digital channel. The supported value is 1.
  • <NR1> = 0 disables the specified digital channel; any other value turns the on the digital channel.
  • OFF turns off the specified digital channel.
  • ON turns on the specified digital channel.

SelectDchItemDall

Bases: SCPICmdWrite, SCPICmdRead

The SELect:DCH<x>:DAll command.

Description
  • This command turns on or off all constituent digital channels.
Usage
  • Using the .query() method will send the SELect:DCH<x>:DAll? query.
  • Using the .verify(value) method will send the SELect:DCH<x>:DAll? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the SELect:DCH<x>:DAll value command.
SCPI Syntax 
- SELect:DCH<x>:DAll {ON|OFF|<NR1>}
- SELect:DCH<x>:DAll?
Info
  • DCH<x> specifies the digital channel. The supported value is 1.
  • <NR1> = 0 disables the specified digital channel; any other value turns the on the digital channel.
  • OFF turns off the specified digital channel.
  • ON turns on the specified digital channel.