VT1422A Command Reference 411Chapter 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 E nable 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