[python source code]

trigger

The trigger commands module.

These commands are used in the following models: AWG5200

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Commands and Queries 
- TRIGger:IMMediate {ATRigger|BTRigger}
- TRIGger:IMPedance <impedance>[,<input_trigger>]
- TRIGger:IMPedance? [<input_trigger>]
- TRIGger:INTerval <NR3>
- TRIGger:INTerval?
- TRIGger:LEVel <NRf>[,ATRigger|BTRigger]
- TRIGger:LEVel? [ATRigger|BTRigger]
- TRIGger:MODE {SYNChronous}[,<input_trigger>]
- TRIGger:MODE? <input_trigger>
- TRIGger:SLOPe {POSitive|NEGative}[,<input_trigger>]
- TRIGger:SLOPe? [<input_trigger>]
- TRIGger:SOURce {EXTernal|INTernal}
- TRIGger:SOURce?
- TRIGger:WVALue {FIRSt}
- TRIGger:WVALue?

Trigger

Bases: SCPICmdRead

The TRIGger command tree.

Usage
  • Using the .query() method will send the TRIGger? query.
  • Using the .verify(value) method will send the TRIGger? query and raise an AssertionError if the returned value does not match value.
Properties
  • .impedance: The TRIGger:IMPedance command.
  • .interval: The TRIGger:INTerval command.
  • .level: The TRIGger:LEVel command.
  • .mode: The TRIGger:MODE command.
  • .slope: The TRIGger:SLOPe command.
  • .source: The TRIGger:SOURce command.
  • .wvalue: The TRIGger:WVALue command.
  • .immediate: The TRIGger:IMMediate command.

immediate property 

immediate: TriggerImmediate

Return the TRIGger:IMMediate command.

Description
  • This command generates a trigger A or B event. If a trigger is not specified, the command is then equivalent to the TRG command.
Usage
  • Using the .write(value) method will send the TRIGger:IMMediate value command.
SCPI Syntax 
- TRIGger:IMMediate {ATRigger|BTRigger}

impedance property 

impedance: TriggerImpedance

Return the TRIGger:IMPedance command.

Description
  • This command sets or returns the external trigger impedance. It applies only to the external trigger.
Usage
  • Using the .query(argument) method will send the TRIGger:IMPedance? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:IMPedance? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:IMPedance value command.
SCPI Syntax 
- TRIGger:IMPedance <impedance>[,<input_trigger>]
- TRIGger:IMPedance? [<input_trigger>]
Info
  • *RST sets this to 50.

interval property 

interval: TriggerInterval

Return the TRIGger:INTerval command.

Description
  • This command sets or returns the internal trigger interval.
Usage
  • Using the .query() method will send the TRIGger:INTerval? query.
  • Using the .verify(value) method will send the TRIGger:INTerval? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:INTerval value command.
SCPI Syntax 
- TRIGger:INTerval <NR3>
- TRIGger:INTerval?

level property 

level: TriggerLevel

Return the TRIGger:LEVel command.

Description
  • This command sets or returns the external trigger input level (threshold).
Usage
  • Using the .query(argument) method will send the TRIGger:LEVel? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:LEVel? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:LEVel value command.
SCPI Syntax 
- TRIGger:LEVel <NRf>[,ATRigger|BTRigger]
- TRIGger:LEVel? [ATRigger|BTRigger]
Info
  • ATRigger selects trigger input A. BTRigger selects trigger input B. Defaults to ATR if not specified.
  • *RST sets this to 1.4 V.

mode property 

mode: TriggerMode

Return the TRIGger:MODE command.

Description
  • This command sets or returns the trigger timing used for the specified A or B external trigger source. SYNChronous is the only available trigger mode.
Usage
  • Using the .query(argument) method will send the TRIGger:MODE? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:MODE? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:MODE value command.
SCPI Syntax 
- TRIGger:MODE {SYNChronous}[,<input_trigger>]
- TRIGger:MODE? <input_trigger>
Info
  • SYNChronous : Synchronous triggering. This trigger type is used to synchronize with external devices.
  • *RST sets this to SYNchronous.

slope property 

slope: TriggerSlope

Return the TRIGger:SLOPe command.

Description
  • This command sets or returns the polarity of the external trigger slope. Use this command to set the polarity in modes other than gated mode.
Usage
  • Using the .query(argument) method will send the TRIGger:SLOPe? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:SLOPe? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:SLOPe value command.
SCPI Syntax 
- TRIGger:SLOPe {POSitive|NEGative}[,<input_trigger>]
- TRIGger:SLOPe? [<input_trigger>]
Info
  • POSitive specifies a trigger on the rising edge of the external trigger signal.NEGative specifies a trigger on the falling edge of the external trigger signal.<input_trigger> ::= {ATRigger|BTRigger}, defaults to ATR if not specified.
  • *RST sets all external trigger slopes to POSitive.

source property 

source: TriggerSource

Return the TRIGger:SOURce command.

Description
  • This command sets or returns the trigger source.
Usage
  • Using the .query() method will send the TRIGger:SOURce? query.
  • Using the .verify(value) method will send the TRIGger:SOURce? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:SOURce value command.
SCPI Syntax 
- TRIGger:SOURce {EXTernal|INTernal}
- TRIGger:SOURce?
Info
  • EXTernal selects external trigger as the trigger source.INTernal select internal interval timing as the trigger source.
  • *RST sets this to EXT.

wvalue property 

wvalue: TriggerWvalue

Return the TRIGger:WVALue command.

Description
  • This command sets or returns the channel’s output state when in the Waiting-for-trigger mode. This value is applied to all channels and markers.
Usage
  • Using the .query() method will send the TRIGger:WVALue? query.
  • Using the .verify(value) method will send the TRIGger:WVALue? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:WVALue value command.
SCPI Syntax 
- TRIGger:WVALue {FIRSt}
- TRIGger:WVALue?
Info
  • FIRSt specifies the first value of the waveform as the output level.
  • *RST sets this to ZERO.

TriggerImmediate

Bases: SCPICmdWrite

The TRIGger:IMMediate command.

Description
  • This command generates a trigger A or B event. If a trigger is not specified, the command is then equivalent to the TRG command.
Usage
  • Using the .write(value) method will send the TRIGger:IMMediate value command.
SCPI Syntax 
- TRIGger:IMMediate {ATRigger|BTRigger}

TriggerImpedance

Bases: SCPICmdWrite, SCPICmdReadWithArguments

The TRIGger:IMPedance command.

Description
  • This command sets or returns the external trigger impedance. It applies only to the external trigger.
Usage
  • Using the .query(argument) method will send the TRIGger:IMPedance? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:IMPedance? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:IMPedance value command.
SCPI Syntax 
- TRIGger:IMPedance <impedance>[,<input_trigger>]
- TRIGger:IMPedance? [<input_trigger>]
Info
  • *RST sets this to 50.

TriggerInterval

Bases: SCPICmdWrite, SCPICmdRead

The TRIGger:INTerval command.

Description
  • This command sets or returns the internal trigger interval.
Usage
  • Using the .query() method will send the TRIGger:INTerval? query.
  • Using the .verify(value) method will send the TRIGger:INTerval? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:INTerval value command.
SCPI Syntax 
- TRIGger:INTerval <NR3>
- TRIGger:INTerval?

TriggerLevel

Bases: SCPICmdWrite, SCPICmdReadWithArguments

The TRIGger:LEVel command.

Description
  • This command sets or returns the external trigger input level (threshold).
Usage
  • Using the .query(argument) method will send the TRIGger:LEVel? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:LEVel? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:LEVel value command.
SCPI Syntax 
- TRIGger:LEVel <NRf>[,ATRigger|BTRigger]
- TRIGger:LEVel? [ATRigger|BTRigger]
Info
  • ATRigger selects trigger input A. BTRigger selects trigger input B. Defaults to ATR if not specified.
  • *RST sets this to 1.4 V.

TriggerMode

Bases: SCPICmdWrite, SCPICmdReadWithArguments

The TRIGger:MODE command.

Description
  • This command sets or returns the trigger timing used for the specified A or B external trigger source. SYNChronous is the only available trigger mode.
Usage
  • Using the .query(argument) method will send the TRIGger:MODE? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:MODE? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:MODE value command.
SCPI Syntax 
- TRIGger:MODE {SYNChronous}[,<input_trigger>]
- TRIGger:MODE? <input_trigger>
Info
  • SYNChronous : Synchronous triggering. This trigger type is used to synchronize with external devices.
  • *RST sets this to SYNchronous.

TriggerSlope

Bases: SCPICmdWrite, SCPICmdReadWithArguments

The TRIGger:SLOPe command.

Description
  • This command sets or returns the polarity of the external trigger slope. Use this command to set the polarity in modes other than gated mode.
Usage
  • Using the .query(argument) method will send the TRIGger:SLOPe? argument query.
  • Using the .verify(argument, value) method will send the TRIGger:SLOPe? argument query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:SLOPe value command.
SCPI Syntax 
- TRIGger:SLOPe {POSitive|NEGative}[,<input_trigger>]
- TRIGger:SLOPe? [<input_trigger>]
Info
  • POSitive specifies a trigger on the rising edge of the external trigger signal.NEGative specifies a trigger on the falling edge of the external trigger signal.<input_trigger> ::= {ATRigger|BTRigger}, defaults to ATR if not specified.
  • *RST sets all external trigger slopes to POSitive.

TriggerSource

Bases: SCPICmdWrite, SCPICmdRead

The TRIGger:SOURce command.

Description
  • This command sets or returns the trigger source.
Usage
  • Using the .query() method will send the TRIGger:SOURce? query.
  • Using the .verify(value) method will send the TRIGger:SOURce? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:SOURce value command.
SCPI Syntax 
- TRIGger:SOURce {EXTernal|INTernal}
- TRIGger:SOURce?
Info
  • EXTernal selects external trigger as the trigger source.INTernal select internal interval timing as the trigger source.
  • *RST sets this to EXT.

TriggerWvalue

Bases: SCPICmdWrite, SCPICmdRead

The TRIGger:WVALue command.

Description
  • This command sets or returns the channel’s output state when in the Waiting-for-trigger mode. This value is applied to all channels and markers.
Usage
  • Using the .query() method will send the TRIGger:WVALue? query.
  • Using the .verify(value) method will send the TRIGger:WVALue? query and raise an AssertionError if the returned value does not match value.
  • Using the .write(value) method will send the TRIGger:WVALue value command.
SCPI Syntax 
- TRIGger:WVALue {FIRSt}
- TRIGger:WVALue?
Info
  • FIRSt specifies the first value of the waveform as the output level.
  • *RST sets this to ZERO.