VXI VT1422A User Manual

Page 413

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VT1422A Command Reference 411

Chapter 7

Command Quick Reference

FORMat

[:DATA] <format>[, <size>]

Set format for response data from [SENSe:]DATA?

ASCii[, 7]

Seven bit ASCII format (not as fast as 32-bit because of conversion)

PACKed[, 64]

Same as REAL, 64 except NaN, +INF and -INF formatted for BASIC

REAL[, 32]

IEEE 32-bit floating point (requires no conversion so is fastest)

REAL, 64

IEEE 64-bit floating point (not as fast as 32-bit because of conversion)

[:DATA]?

Returns format: REAL, +32 | REAL, +64 | PACK, +64 | ASC, +7

INITiate

[:IMMediate]

Put module in Waiting for Trigger state (ready to make one scan)

INPut

:FILTer

Control filter Signal Conditioning Plug-ons

[:LPASs]

:FREQuency <cutoff_freq>,(@<ch_list>)

Sets the cutoff frequency for active filter SCPs

:FREQuency? (@<channel>)

Returns the cutoff frequency for the channel specified

[:STATe] ON | OFF, (@<channel>)

Turn filtering OFF (pass through) or ON (filter)

[:STATe]? (@<channel>)

Return state of SCP filters

:GAIN <chan_gain>,(@<ch_list>)

Set gain for amplifier-per-channel SCP

:GAIN? (@<channel>)

Returns the channel's gain setting

:LOW <wvolt_type>,(@<ch_list>)

Controls the connection of input LO on a Strain Bridge (Opt. 21 SCP)

:LOW? (@<channel>)

Returns the LO connection for the Strain Bridge at channel

:POLarity NORmal | INVerted,(@<ch_list>)

Sets input polarity on a digital SCP channel

:POLarity? (@<channel>)

Returns digital polarity currently set for <channel>

MEASure

MEAS performs automatic setup and measurement scanning:

:VOLTage

return value in volts;

:EXCitation? (@<ch_list>)

measure excitation voltage at strain bridge, send to EU conversion

:UNSTrained? (@<ch_list>)

measure unstrained bridge output voltage, send to EU conversion

MEMory

:VME

:ADDRess <mem_address>

Specify address of VME memory card to be used as reading storage

:ADDRess?

Returns address of VME memory card

:SIZE <mem_size>

Specify number of bytes of VME memory to be used to store readings

:SIZE?

Returns number of VME memory bytes allocate to reading storage

:STATe 1 | 0 | ON | OFF

Enable or disable reading storage in VME memory at INIT

:STATe?

Returns state of VME memory, 1=enabled, 0=disabled

OUTPut

:CURRent

:AMPLitude <amplitude>,(@<ch_list>)

Set amplitude of Current Source SCP channels

:AMPLitude? (@<channel>)

Returns the setting of the Current Source SCP channel

:STATe ON | OFF,(@<ch_list>)

Enable or disable the Current Source SCP channels

:STATe? (@<channel>)

Returns the state of the Current Source SCP channel

:POLarity NORmal | INVerted,(@<ch_list>)

Sets output polarity on a digital SCP channel

:POLarity? (@<channel>)

Returns digital polarity currently set for <channel>

:SHUNt ON | OFF,(@<ch_list>)

Adds shunt resistance to leg of Bridge Completion SCP channels

:SOURce INTernal | EXTernal,(@<ch_list>)

Selects either the VT1529A/B’s internal shunt resistor or an external

shunt resistor

:SHUNt? (@<channel>)

Returns the state of the shunt resistor on Bridge Completion SCP channel

:TTLTrg

:SOURce FTRigger | LIMit | SCPlugon | TRIGger

Sets the internal trigger source that can drive the VXIbus TTLTrg lines

:SOURce?

Returns the source of TTLTrg drive.

SCPI Command Quick Reference

Command

Description

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