Source, Subsystem syntax, Source:fm[:state – VXI VT1422A User Manual

Page 374: Parameters, Comments

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372 VT1422A Command Reference

Chapter 7

SOURce

SOURce

The SOURce command subsystem allows configuring output SCPs as well as linking
channels to output functions.

Subsystem Syntax

SOURce

:FM

:STATe 1 | 0 | ON | OFF,(@<ch_list>)
:STATe? (@<channel>)

:FUNCtion

[:SHAPe]

:CONDition (@<ch_list>)
:PULSe (@<ch_list>)
:SQUare (@<ch_list>)

:PULM

:STATe 1 | 0 | ON | OFF,(@<ch_list>)
:STATe? (@<channel>)

:PULSe

:PERiod <period>,(@<ch_list>)
:PERiod? (@<channel>)
:WIDTh <pulse_width>,(@<ch_list>)
:WIDTh? (@<channel>)

:VOLTage

[:AMPLitude] <-offset_v>,(@<ch_list>)

SOURce:FM[:STATe]

SOURce:FM[:STATe] <enable>,(@<ch_list>)

enables the Frequency Modulated

mode for a PULSe channel.

Parameters

Comments

This command is coupled with the SOURce:PULM:STATE command. If the

FM state is ON then the PULM state is OFF. If the PULM state is ON then the
FM state is OFF. If both the FM and the PULM states are OFF then the PULSe
channel is in the single pulse mode.

If the channels specified are not on a Frequency/Totalize SCP, an error will

be generated.

Use SOURce:FUNCtion[:SHAPe]:SQUare to set FM pulse train to 50% duty

cycle. Use SOURce:PULSe:PERiod to set the period.

Parameter

Name

Parameter

Type

Range of

Values

Default

Units

enable

boolean (uint16)

1 | 0 | ON | OFF

none

ch_list

string

100 - 163

none

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