VXI VT1422A - Manual (Page 411)

VT1422A Command Reference 409 Chapter 7
Command Quick Reference
Command Quick Reference
The following tables summarize SCPI and IEEE-488.2 Common (*) commands for
the VT1422A Remote Channel Multifunction Module.
SCPI Command Quick Reference
Command Description
ABORt Stops scanning immediately and sets trigger system to idle state (scan lists are
unaffected)
ALGorithm Subsystem to define, configure and enable loop control algorithms
[:EXPLicit]
:ARRay ’<alg_name>’,’<array_name>’,<block_data> Defines contents of array <array_name> in algorithm <alg_name> or if
<alg_name> is "GLOBALS", defines values global to all algorithms.
:ARRay? ’<alg_name>’,’<array_name>’ Returns block data from <array_name> in algorithm <alg_name> or if
<alg_name> is "GLOBALS", returns values from a global array.
:DEFine ’<alg_name>’[,<swap_size>],’<program_data>’ Defines algorithms or global variables. <program_data> is 'C' source of
algorithm or global declaration.
:SCALar ’<alg_name>’,’<var_name>’,<value> Defines value of variable <var_name> in algorithm <alg_name> or if
<alg_name> is "GLOBALS", defines a value global to all algorithms.
:SCALar? ’<alg_name>’,’<var_name>’ Returns value from <var_name> in algorithm <alg_name> or if <alg_name>
is "GLOBALS," returns a value from global variable.
:SCAN
:RATio ’<alg_name>’,<ratio> Sets scan triggers per execution of <alg_name> (send also ALG:UPD)
:RATio? ’<alg_name>’ Returns scan triggers per execution of <alg_name>
:SIZe? ’<alg_name>’ Returns size in words of named algorithm
:STATe ’<alg_name>’,ON | OFF Enables/disables named algorithm after ALG:UPDATE sent
:STATe? ’<alg_name>’ Returns state of named algorithm
:TIME? ’<alg_name>’ | MAIN Returns worst case alg execution time. Use "MAIN" for overall time.
:FUNCtion
:DEFine ’<function_name>’,<range>,<offset>,<func_data> Defines a custom conversion function
:OUTPut
:DELay <delay> | AUTO Sets the delay from scan trigger to start of outputs
:DELay? Returns the delay from scan trigger to start of outputs
:UPDate
[:IMMediate] Requests immediate update of algorithm code, variable or array
:CHANnel (@<channel> Sets dig channel to synch algorithm updates
:WINDow <num_updates> Sets a window for num_updates to occur. *RST default is 20.
:WINDow? Returns setting for allowable number variable and algorithm updates.
ARM
[:IMMediate] Arm if ARM:SOUR is BUS or HOLD (software ARM)
:SOURce BUS | EXT | HOLD | IMM | SCP | TTLTrg<n> Specify the source of Trigger Timer ARM
:SOURce? Return current ARM source
CALCulate
:TEMPerature:THERmistor? <thr_volts>,<exc_volts>[,resistance] Calculates temperature (in °C) of VT1586A reference thermistor.
:TEMPerature:TCouple? <type>,<thr_volts>,<volt_array> Converts array of thermocouple output voltages into temperatures (in °C)
CALibration
:CONFigure Prepare to measure on-board references with an external multimeter
:RESistance Configure to measure reference resistor
:VOLTage <range>, ZERO | FSCale Configure to measure reference voltage range at zero or full scale