Stores the date that the power module was last calibrated in nonvolatile memory. The query returns the date as an ASCII string enclosed in double quotes, or an empty quoted string if no date is stored.

CAL:DATE "4/22/11",(@1)
CAL:DATE? (@1)

Enables or disables calibration mode. Calibration mode must be enabled for the instrument to accept calibration commands; if enabling and the existing password is not 0, a numeric password is required.

CAL:STAT ON, 1234
CAL:STAT?

Returns the calibration state only, not the password. The query returns 0 for OFF and 1 for ON.

CAL:STAT?

Calibrates the negative current limit. This command is only available on the N6783A.

Calibrates the positive current limit. This command applies only on N678xA SMU models.

Calibrates the current measurement for the selected channel.

Calibrates the peak current limit. This command applies only on N675xA and N676xA models.

Calibrates the output current programming. The optional level node is shown in the syntax line, and the command applies to a specific channel.

Enters the calibration value.

Sets the calibration date for the selected channel.

Calibrates the current downprogrammer.

Calibrates the output current programming for the specified channel. This is the current-calibration step under the CALibrate:CURRent subsystem.

Sets the numeric calibration password.

Calibrates the output resistance. This command is available only on the N6781A.

Saves the new calibration constants in non-volatile memory.

Enables or disables calibration mode. An optional numeric argument may be supplied with the state setting.

Calibrates common mode rejection ratio. The command applies only to N675xA and N676xA models.

Calibrates the positive voltage limit. This command applies only on N678xA SMU models.

Calibrates the voltage measurement. The command takes a calibration value and a channel list.

Calibrates the auxiliary voltage measurement. The manual notes that this command applies only on the N6781A.

Calibrates the output voltage programming. The optional level node is included for clarity in the quick reference.

Returns 1 to the output buffer when all pending operations are completed. It is mainly used for program synchronization and does not suspend processing of subsequent commands.

*OPC?

Reads the Service Request Enable register and returns a decimal value corresponding to the binary-weighted sum of all bits set in the register. The register determines which Status Byte bits are summed to set the MSS and RQS summary bits.

*SRE?
Typical Response: +16

Returns the event status register.

Returns a sequence of SCPI commands.

Returns the status byte.

Performs a self-test, then returns the result.

Queries the present programming or hardware error. An error code number is returned over the GPIB to identify the error.

Clears the status byte and event registers. The command is the Agilent 662xA compatibility equivalent of *CLS.

Sets or queries the event status enable register. This compatibility command corresponds to SCPI *ESE and is used to control which event status bits are enabled for summary reporting.

Always returns a 0.

Queries the revision of the power system's firmware.

Queries the revision of the power system's firmware.

No operation; this compatibility command does nothing.

Queries the revision of the power system's firmware.

Recalls the settings for all output channels from the specified internal register. These settings were previously stored using the STO command, and RCL programs all output channels in sequential order to these stored settings.

Queries the revision of the power system's firmware.

Stores the present settings for all output channels in the specified register. These settings can be recalled when desired.

Does nothing.

Recalls the settings for all output channels from the specified internal register. These settings were previously stored using the STO command; RCL programs all output channels in sequential order to these stored settings.

Waits until all pending operations are complete before executing the next command. It is a synchronization command and does not itself generate a response.

Selects the output channel view of the front-panel display. METER1 displays one output channel, and METER4 displays all output channels up to a maximum of four.

DISP:VIEW?

This query returns the channel number that is presently displayed on the front panel in single-channel view (METER1).

DISP:CHAN?
Typical Response: 4

Selects the channel in the 1-channel meter view.

Selects the meter view mode for the display window. The command sets either the 1-channel or 4-channel meter view.

Returns external datalog data from the instrument’s buffer. The maximum number of records returned per channel is specified by <maxrecords>, and the channel list is specified by (@<chanlist>).

FETC:ELOG? 100, @1

Returns the total rms current (AC + DC).

Returns the high level of a current pulse.

Returns the low level of a current pulse.

Returns the maximum current.

Returns the minimum current. This fetch command is available under the scalar current fetch subtree.

Returns the average current.

Returns the instantaneous output current.

Returns the instantaneous output power for the specified channel list.

Returns the instantaneous output voltage.

Returns the most recent external data log records.

Returns the average output power for the specified channel list.

Returns the total rms voltage, including AC and DC components, for the specified channel list.

Returns the high level of a voltage pulse.

Returns the low level of a voltage pulse. The command is a scalar fetch from the voltage subsystem and accepts a channel list.

Returns the maximum voltage. The command is part of the FETCh[:SCALar]:VOLTage family and is a query on one or more channels.

Returns the minimum voltage from the selected channel list. This is a measurement query under FETCh[:SCALar]:VOLTage.

Returns the average voltage. The command accepts an optional DC qualifier and an optional channel list.

Returns the data format setting used for queries that return a block of data. The setting can be ASCII or REAL, where REAL uses binary IEEE single-precision floating point.

FORM?
Typical Response: ASCII

Specifies how binary data is transferred when FORMat:DATA is set to REAL. NORMal sends the most significant byte first; SWAPped sends the least significant byte first.

FORM:BORD SWAP
FORM:BORD?

Sets the byte order of the external data log data.

Sets the data format used for returned data. The command accepts ASCII or REAL data format.

Initiates and triggers a measurement, then returns the average output current in amperes for the specified channel list. The query starts a new measurement immediately and is not synchronized to any trigger event.

MEAS:CURR? (@1)

Enables or disables continuous transient triggers for the selected channels.

Enables the measurement system to receive triggers. Documented as an acquire command only on N676xA, N678xA SMU and Option 054.

Enables external data log measurements for the specified channel list. This command is listed under INITiate[:IMMediate].

Enables the output transient system to receive triggers. The command is listed under INITiate[:IMMediate] and applies to the specified channel list.

Enables or disables the specified output channel(s). The optional NORelay parameter turns the output state on or off without changing relay state.

OUTP ON,(@2)
OUTP? (@4)

Enables or disables output coupling or synchronization between multiple output channels. When coupled and the digital connector pins are properly configured, one output channel can control the output state of multiple outputs in multiple mainframes.

OUTP:COUP ON
OUTP:COUP?

Specifies which output channels in the mainframe are controlled by the output synchronization function. If no channel is specified, all output channels are uncoupled.

OUTP:COUP:CHAN 1,2,4
OUTP:COUP:CHAN?

Specifies a maximum delay offset used to synchronize output state changes. The delay only applies to coupled channels when output coupling is enabled.

OUTP:COUP:DOFF 0.06
OUTP:COUP:DOFF?

Returns the largest delay offset required for the output channels installed in the mainframe.

OUTP:COUP:MAX:DOFF?
Typical Response: +3.000000E-02

Sets the delay in seconds before the specified output turns off, allowing multiple outputs to sequence their turn-off. The delay applies to on-to-off transitions caused by OUTPut[:STATe] changes and output range changes, but not protection-induced turn-off.

OUTP:DEL:FALL 0.5,(@2)
OUTP:DEL:FALL? MAX,(@1)

Sets the output turn-on delay in seconds for the specified channels. The query returns the programmed delay time, and can be qualified with MIN or MAX to read the minimum or maximum allowable delay.

OUTP:DEL:RISE 0.5,(@2)
OUTP:DEL:RISE? MAX,(@1)

Sets the preferred mode for output on/off transitions, optimizing turn-on and turn-off overshoots for constant voltage or constant current operation. Applies only to models N6761A and N6762A.

OUTP:PMOD CURR,(@1)
OUTP:PMOD? (@2)

Specifies the output impedance mode at turn-off for the selected channel list. High impedance leaves the output relays open while the output remains at its set value; low impedance down-programs the output to zero before opening the relays.

OUTP:TMOD HIGHZ,(@1)
OUTP:TMOD? (@2)

Selects the mode of operation of the Inhibit input (INH). The setting is stored in non-volatile memory.

OUTP:INH:MODE LIVE
OUTP:INH:MODE?

Enables or disables output coupling for protection faults. When enabled, all output channels are disabled when a protection fault occurs on any output channel; when disabled, only the affected output channel is disabled.

OUTP:PROT:COUP ON
OUTP:PROT:COUP?

Enables or disables output oscillation protection for the specified channel list. When enabled, the protection detects oscillation caused by capacitive loads and latches the output off.

OUTP:PROT:OSC ON,(@1)
OUTP:PROT:OSC? (@1)

Enables or disables the output watchdog timer. When enabled, all output channels are disabled if there is no I/O activity on any remote interface within the delay specified by OUTput:PROTection:WDOG:DELay; the programmed output states are not changed.

OUTP:PROT:WDOG ON
OUTP:PROT:WDOG?
Typical Response: 0

Sets the output watchdog delay time. When the watchdog timer is enabled, all output channels are disabled if there is no SCPI I/O activity within the programmed delay time.

OUTP:PROT:WDOG:DEL 600
OUTP:PROT:WDOG:DEL? MAX

Sets the output polarity on power modules with polarity reversal relays installed (Option 760). Polarity reversal affects both the output and sense terminals.

OUTP:REL:POL REV,(@1)
OUTP:REL:POL? (@2)

Selects which output channels are coupled.

Specifies a maximum delay offset to synchronize output changes.

Returns the maximum delay offset required for a mainframe.

Enables or disables channel coupling for output synchronization.

Sets the output turn-off sequence delay for the specified output channel(s).

Sets the output turn-on sequence delay for the specified channel list.

Sets the mode for turn on/off transitions for the specified output channels. This command applies to N6761A and N6762A.

Programs the power-on state of the instrument. The available power-on states are RST or RCL0.

Resets latched protection for the specified output channel(s).

Sets the over-current protection programming delay for the specified channels.

Enables or disables output oscillation protection for the specified channel(s).

Specifies the turn-on/turn-off impedance for the specified output channels. This command is supported only on N678xA SMU instruments.

Enables or disables the specified output channel(s).

Returns 1 if any channels are set to turn on their output at power on.

Queries the present reprogramming delay of the specified output channel.

Queries whether the specified output channel is on or off. The response is either 1 (on) or 0 (off).

Queries whether the specified output channel is turned on or off. The response is either 1 (on) or 0 (off).

OUT? <ch>

Enables or disables capacitive current compensation for the specified channel list.

Enables or disables measurement autoranging for the current measurement range. This command is available for the current range under the SENSe subsystem.

Selects the current measurement range.

Enables or disables measurement autoranging for the external data log current range. This command applies to the external current data logging range under the ELOG subsystem.

Sets the external data log current range. The command applies to the specified channel list and supports a nested DC upper-range form.

Enables or disables external current data logging. The command applies to the specified channels.

Enables or disables external min/max current data logging. This command is a subordinate setting under :SENSe:ELOG:FUNCtion:CURRent.

Enables or disables external voltage data logging. This command is part of the ELOG function settings for the specified channel list.

Enables or disables external min/max voltage data logging. This command is a subordinate of :SENSe:ELOG:FUNCtion:VOLTage and applies to the selected channel list.

Sets the integration time of the external data logging.

Enables or disables external data log voltage measurement autoranging. Applicable to the external voltage data log range command under the ELOG subsystem.

Sets the external data log voltage range. The range is specified per channel list, with an optional upper-limit node.

Selects the measurement function for backward compatibility. The command accepts the function name and applies it to the specified channel list.

Selects the measurement function. The manual notes this command is for backward compatibility and that :CURRent and :VOLTage replacements exist.

Selects the voltage measurement function for external data logging. This command is listed for backward compatibility and is replaced by :FUNCtion:VOLTage in the newer syntax.

Selects the voltage measurement input. This command is available only on the N6781A.

Defines the trigger offset in the measurement sweep.

Defines the number of data points in the measurement sweep.

Sets the measurement sample interval. An optional resolution can be specified for the sweep sample interval.

Sets the measurement sample interval resolution for sweep measurements.

Enables or disables measurement autoranging for the voltage range. The manual lists this under the voltage range subsystem and notes N6781A/N6782A applicability.

Selects the voltage measurement range.

Selects the measurement window type for supported models. The allowed window types are HANNing and RECTangular.

SENS:WIND RECT,(@2)
SENS:WIND? (@1)

Enables/disables the capacitive current compensation.

Selects the voltage measurement function for the sense subsystem. The slice also notes a voltage measurement input selection under this command tree.

Selects the voltage measurement input. This command is available only on N6781A.

Sets the full-scale current range programming for an output channel. The power system selects the lowest operating range that contains the specified value; if the entered current is above the highest possible range, an error occurs.

Queries the full-scale current range setting of an output channel.

Sets or queries the immediate current level of the specified output channel. Units are amperes; the immediate level is the output current setting.

CURR 3,(@1,2)
CURR? (@1,2)

Sets the triggered current level of the specified output channel. The triggered level is a stored value transferred to the output when an output Step is triggered.

CURR:TRIG 2,(@1,2)
CURR:TRIG? (@1,2)

Sets the positive current limit of the specified output channel. If [SOURce:]CURRent:LIMit:COUPle is enabled, it also sets the negative current limit.

CURR:LIM 3,(@1,2)
CURR:LIM? (@1,2)

Sets the current limit tracking state for the specified channel list. When enabled, the negative current limit tracks the positive current limit setting; when disabled, it does not. This command only applies to N678xA SMU models.

CURR:LIM:COUP ON,(@4)
CURR:LIM:COUP? (@1)

Sets the negative current limit of the specified output channel. If current limit coupling is enabled, it also sets the positive current limit. Units are in amperes.

CURR:LIM:NEG -3,(@1,2)
CURR:LIM:NEG? (@1,2)

Determines what happens to the output current when the transient system is initiated and triggered.

CURR:MODE STEP,(@4)
CURR:MODE? (@1)

Sets the over-current protection delay for the specified output channel. The over-current protection function is not triggered on that channel during the programmed delay time.

CURR:PROT:DEL 0.5,(@2)
CURR:PROT:DEL? MAX,(@1)

Sets the over-current protection delay start event for the specified channel list. The delay timer can start after a programmed settings change or on any transition into constant current mode.

[SOURce:]CURRent:PROTection:DELay:STARt <mode>,
[SOURce:]CURRent:PROTection:DELay:STARt?
CURR:PROT:DEL:STAR CCTR,(@1)
CURR:PROT:DEL:STAR? (@2)

Enables or disables the over-current protection (OCP) function for the specified channel list. When enabled and the output enters constant current operation, the output is disabled and the Questionable Condition status register OCP bit is set.

CURR:PROT:STAT ON,(@4)
CURR:PROT:STAT? (@1)

Sets the output current range on models with multiple ranges. The query returns the maximum current that can be output on the presently set range for each specified channel.

CURR:RANG 1,(@1,2)
CURR:RANG? (@1,2)

Sets the current slew rate in amps per second for the specified channel list. The query returns the programmed slew rate value sent, or the minimum value if the sent value was below the minimum; very large values indicate the maximum slew rate.

CURR:SLEW 1,(@1)
CURR:SLEW? (@1)

Sets the current slew rate maximum override. When enabled, the power module's slew rate is set to its maximum value; when disabled, it is set to the immediate value set by [SOURce:]CURRent:SLEW.

CURR:SLEW:MAX ON,(@1)
CURR:SLEW:MAX? (@1)

Sets the current of the specified output channel.

Enables the over-current protection circuit for the specified output channel. When enabled, this circuit causes the output to go to the off state when the output is in +CC mode.

Queries the over-current protection circuit on/off status for the specified output channel. Response is either 1 (on) or 0 (off).

Queries the present current setting of the specified output channel. The response is a real number.

Reads the state of the digital control port. The returned value is the binary-weighted state of pins 1 through 7 in bits 0 through 6, respectively.

DIG:INP:DATA?

Sets the output data on the digital control port when the port is configured for Digital I/O operation. The value is written as a binary-weighted pattern for the seven signal pins.

DIG:OUTP:DATA 21
DIG:OUTP:DATA?

Sets or queries the output data on the digital control port when the port is configured for Digital I/O operation. The written binary-weighted value controls pins 1 through 7 according to the bit assignments listed in the manual.

DIG:OUTP:DATA?

Sets the function of a digital port pin and stores the setting in non-volatile memory. The available functions depend on the pin number, with special behaviors for pins 1, 2, 3, and 4-7 described in the manual.

Sets or queries the function of a digital port pin. The pin function is saved in non-volatile memory.

DIG:PIN1:FUNC FAUL
DIG:PIN7:FUNC?

Sets the polarity of the digital port pins and stores the setting in non-volatile memory. Positive means a logical true is a voltage high (or rising edge for trigger I/O); negative means a logical true is a voltage low (or falling edge for trigger I/O).

DIG:PIN1:POL NEGative
DIG:PIN7:POL?

Sets or queries the polarity of the digital port pins. Polarity settings are saved in non-volatile memory.

DIG:PIN7:POL?

Enables or disables BUS-trigger generation on digital port pins configured as trigger outputs. A trigger is generated when the state is ON (1).

DIG:TOUT:BUS ON
DIG:TOUT:BUS?

Enables or disables BUS-generated trigger signals on digital port pins configured as trigger outputs. A BUS trigger is generated using the *TRG command.

DIG:TOUT:BUS ON
DIG:TOUT:BUS?

Selects whether the output regulation on N678xA models uses voltage priority or current priority mode for the specified channel list. The query returns the priority mode setting for each specified channel.

FUNC VOLT, (@3)
FUNC? (@1)

Selects whether output regulation is in voltage priority or current priority mode for the specified channels. The query returns the priority mode setting for each channel specified, with multiple responses separated by commas.

FUNC VOLT, (@3)
FUNC? (@1)

Sets the number of times the list is executed before it is completed. Use INFinity to execute a list continuously.

[SOURce:]LIST:COUNt <count>|INFinity, (@<chanlist>)
[SOURce:]LIST:COUNt? [MIN|MAX|INFinity,]
(@<chanlist>)
LIST:COUN 10,(@1)
LIST:COUN? (@1)

Returns the list count for each specified channel. Multiple responses are separated by commas; a repeat count of 9.9E37 indicates the list is set to repeat continuously.

LIST:COUN? (@1)

Specifies the current setting for each list step in amperes. A comma-delimited list of up to 512 steps may be programmed.

[SOURce:]LIST:CURRent[:LEVel] <current>{,<current>}, (@<chanlist>)
[SOURce:]LIST:CURRent[:LEVel]? (@<chanlist>)

Specifies the current setting for each list step in amperes. The list can contain up to 512 steps and is programmed per channel list.

LIST:CURR 5,4,3,2,1,(@1)
LIST:CURR? (@1)

Returns the number of points (steps) in the current list, not the point values.

LIST:CURR:POIN? (@1)

Specifies the dwell time for each list step. A comma-delimited list of up to 512 steps may be programmed; dwell time is the time the output remains at a specific step.

Returns the programmed dwell time for the specified channel list. Multiple responses are separated by commas.

LIST:DWEL? (@1)

Returns the number of points (steps) in the dwell list, not the point values.

LIST:DWEL:POIN? (@1)

Returns or sets how the list responds to triggers. ONCE holds the output at the present step until a trigger advances it; AUTO automatically advances through the dwell list after an initial start trigger.

[SOURce:]LIST:STEP? (@<chanlist>)

This query returns the output value when the list terminates for the specified channel(s). It returns 0 if the output returns to the settings that were in effect before the list started, and 1 if the output remains at the value of the last list step.

LIST:TERM:LAST? (@1)

Specifies which list steps generate a trigger signal at the beginning of the step (BOSTep). A comma-delimited list of up to 512 steps may be programmed; the trigger is generated only when the state is ON.

Specifies which list steps generate a trigger signal at the beginning of the step (BOSTep) for the selected channels. A comma-delimited list of up to 512 steps may be programmed; triggers are generated only when the state is ON.

LIST:TOUT:BOST ON,ON,ON,ON,ON,(@1)
LIST:TOUT:BOST? (@1)

Specifies which list steps generate a trigger signal at the end of the step. A comma-delimited list of up to 512 steps may be programmed; the state is ON (1) or OFF (0).

Specifies which list steps generate a trigger signal at the end of the step (EOSTep). A comma-delimited list of up to 512 steps may be programmed for the specified channels.

LIST:TOUT:EOST ON,ON,ON,ON,ON,(@1)
LIST:TOUT:EOST? (@1)

Specifies the voltage setting for each list step in volts. A comma-delimited list of up to 512 steps may be programmed, and the command overwrites any previously programmed voltage list.

[SOURce:]LIST:VOLTage[:LEVel] <voltage>{,<voltage>}, (@<chanlist>)
[SOURce:]LIST:VOLTage[:LEVel]? (@<chanlist>)

Specifies the voltage setting for each list step in volts. A comma-delimited list of up to 512 steps may be programmed.

LIST:VOLT 10,20,30,40,50,(@1)
LIST:VOLT? (@1)

Returns the number of points (steps) in the voltage list, not the point values.

LIST:VOLT:POIN? (@1)

Specifies how the list responds to triggers.

Sets the list termination mode for the selected channels.

Returns the number of beginning of step list points.

Sets the list of dwell times for the specified channels.

Returns the number of end of step list points.

Returns the number of beginning-of-step list points for the specified channels.

Sets the voltage list for the selected channels. This is a list command using channel list addressing.

Returns the number of voltage level points for the list output voltage. This is documented under LIST:TOUTput:VOLTage for the specified channel list.

Increases or decreases the output channel current in steps. If the step value is positive, output current increases by that amount; if negative, it decreases by that amount. Stepping beyond the active operating range causes an error.

Sets the power limit on the specified output channels. Units are watts; the limit may also be set to the channel's maximum rating with MAX, and the query can request the programmed value or MIN/MAX.

[SOURce:]POWer:LIMit 75, (@1,2)

Queries the programmed power limit on the specified output channels. Units are watts; querying MAX returns the maximum rated power limit.

POW:LIM? (@1,2)

Sets the power limit on output channels.

Sets the resistance level of the specified output channel. Units are in ohms; resistance programming must be enabled with [SOURce:]RESistance:STATe. This command only applies to model N6781A.

RES 0.5,(@1)
RES? (@1)

Queries the programmed resistance level of the specified output channel. Units are ohms; resistance programming is enabled with [SOURce:]RESistance:STATe.

[SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude]? [MIN|MAX,] (@<chanlist>)
RES? (@1)

Enables or disables output resistance programming. The enabled state is ON (1) and the disabled state is OFF (0); the output resistance level is set with [SOURce:]RESistance.

RES:STAT ON,(@2)
RES:STAT? (@1)

Enables or disables output resistance programming for the specified channel list. The enabled state is ON (1) and the disabled state is OFF (0).

RES:STAT? (@1)

Sets the output resistance (only on N6781A).

Enables or disables output resistance programming. This command applies only to the N6781A.

Specifies whether an output trigger signal is generated when a transient voltage or current step occurs. The state is ON (1) or OFF (0); a trigger is generated when the state is True (ON).

STEP:TOUT ON,(@2)
STEP:TOUT? (@1)

Specifies whether an output trigger signal is generated when a transient voltage or current step occurs. The state is ON (1) or OFF (0); a trigger is generated when the state is ON.

STEP:TOUT ON,(@2)
STEP:TOUT? (@1)

Generate a trigger output on the voltage or current step transient.

Sets the immediate voltage level of the specified output channel. Units are volts; the immediate level is the output voltage setting.

VOLT 50,(@1,2)
VOLT? (@1,2)

Sets the immediate voltage level of the specified output channel. The query returns the programmed voltage level for each specified channel in exponential form.

VOLT 50,(@1,2)
VOLT? (@1,2)

Sets the triggered voltage level of the specified output channel. The level is stored and transferred to the output when an output Step is triggered.

VOLT:TRIG 40,(@1,2)
VOLT:TRIG? (@1,2)

Sets the triggered voltage level of the specified output channel. The triggered level is a stored value transferred to the output when an output Step is triggered.

VOLT:TRIG 40,(@1,2)
VOLT:TRIG? (@1,2)

Specifies a voltage bandwidth compensation mode to optimize output response time with capacitive loads. The modes apply only in Voltage Priority mode and, on N678xA SMU models, determine the allowable output capacitance and sensing mode.

Specifies a voltage bandwidth mode to optimize output response time with capacitive loads. The setting applies only in Voltage Priority mode and to model N678xA SMU.

VOLT:BWID HIGH2,(@4)
VOLT:BWID? (@1)

Sets the positive voltage limit for the specified output channel. If voltage-limit coupling is enabled, it also sets the negative voltage limit. Units are volts.

VOLT:LIM 20,(@1,2)
VOLT:LIM? (@1,2)

Returns the positive voltage limit of the specified output channel. If [SOURce:]VOLTage:LIMit:COUPle is enabled, it also affects the negative voltage limit.

VOLT:LIM? (@1,2)

Sets the voltage limit coupling/tracking state for the specified channel list. When enabled, the negative voltage limit tracks the positive voltage limit setting.

VOLT:LIM:COUP ON,(@4)
VOLT:LIM:COUP? (@1)

Sets the voltage limit tracking state for the specified channel list. If enabled, the negative voltage limit tracks the positive voltage limit setting. This command only applies to model N6784A.

VOLT:LIM:COUP ON,(@4)
VOLT:LIM:COUP? (@1)

Sets the negative voltage limit of the specified output channel. If voltage limit coupling is enabled, it also sets the positive voltage limit. Units are volts and the command applies only to model N6784A.

VOLT:LIM:NEG -19,(@1,3)

Sets or queries the negative voltage limit for the specified output channel. If voltage limit coupling is enabled, this command also sets the positive voltage limit. Units are volts.

VOLT:LIM:NEG -19,(@1,3)
VOLT:LIM:NEG? (@1,3)

Determines what happens to the output voltage when the transient system is initiated and triggered. Fixed mode keeps the output at the immediate value; STEP goes to the triggered level; LIST follows the programmed list values.

VOLT:MODE? (@4)

Sets the over-voltage protection (OVP) level of the output channel in volts. If the output voltage exceeds the OVP level, the output is disabled and the Questionable Condition status register OV bit is set.

VOLT:PROT 45,(@1)
VOLT:PROT? (@1)

Sets or queries the over-voltage protection (OVP) level for the specified output channel. The protection level is programmed in volts; if the output voltage exceeds it, the output is disabled and the Questionable Condition status register OV bit is set.

VOLT:PROT 45,(@1)
VOLT:PROT? (@1)

Sets the over-voltage protection delay for the specified output channel. The protection function will not trigger on that channel during the programmed delay time; after the delay expires, it becomes active.

VOLT:PROT:DEL 0.001,(@1)
VOLT:PROT:DEL? (@1)

Sets the over-voltage protection delay for the specified output channel. The protection function will not be triggered on that channel during the programmed delay time; after the delay expires, protection becomes active.

VOLT:PROT:DEL 0.001,(@1)
VOLT:PROT:DEL? (@1)

Sets the positive over-voltage remote protection (OVP) level for the specified output channel. If the output voltage exceeds the OVP level, the output is disabled and the Questionable Condition status register OV bit is set.

The following command sets the over-voltage remote protection level to 15 V on channel 1.

Sets or queries the positive over-voltage remote protection level of the specified output channel. Values are programmed in volts; if the output voltage exceeds the OVP level, the output is disabled and the Questionable Condition status register OV bit is set.

VOLT:PROT:REM 15,(@1)
VOLT:PROT:REM? (@1)

Sets the negative over-voltage remote protection (OVP) level of the specified output channel in volts. If the output voltage exceeds the OVP level, the output is disabled and the Questionable Condition status register OV bit is set.

Sets or queries the negative over-voltage remote protection (OVP) level of the output channel. The values are programmed in volts, and if the output voltage exceeds the OVP level the output is disabled and the Questionable Condition status register OV bit is set.

VOLT:PROT:REM:NEG -15,(@1)
VOLT:PROT:REM:NEG? (@1)

Enables or disables the tracking over-voltage protection (OVP) function of the output channel. The command applies to the specified channel list and is only available on N6752A, N6754A, and N6762A with Option J01.

VOLT:PROT:TRAC ON,(@1)
VOLT:PROT:TRAC? (@1)

Sets the tracking over-voltage protection (OVP) offset of the output channel, letting the OVP limit track the programmed voltage by an offset. The query returns the programmed offset voltage for each specified channel.

VOLT:PROT:TRAC:OFFS 2,(@1)
VOLT:PROT:TRAC:OFFS? (@1)

Sets the output voltage range on models with multiple ranges. The range value should be the highest voltage expected to be sourced, and the instrument selects the best-resolution range for that value.

VOLT:RANG 5,(@1,2)
VOLT:RANG? (@1,2)

Sets the voltage slew rate in volts per second for the specified channel list. The query returns the programmed slew rate for each channel; a returned value of 9.9E37 indicates maximum slew rate.

VOLT:SLEW 5,(@1)
VOLT:SLEW? (@1)

Sets the voltage slew rate maximum override for the specified channels. When enabled, the power module's slew rate is set to its maximum value; when disabled, it uses the immediate value set by [SOURce:]VOLTage:SLEW. The query version returns whether the override is enabled or disabled.

VOLT:SLEW:MAX ON,(@1)
VOLT:SLEW:MAX? (@1)

Sets the voltage bandwidth on N678xA SMU models.

Sets the output voltage.

Sets the triggered output voltage amplitude.

Sets the voltage limit tracking state. This command applies only on the N6784A.

Sets the negative voltage limit output amplitude. This command is only available on the N6784A SMU.

Sets the positive voltage limit for the output channels. This command is only available on the N678xA SMU.

Sets the voltage trigger mode.

Sets the over-voltage protection delay. This command is only available on N6783A.

Sets the over-voltage protection level.

Sets the negative remote over-voltage protection level on N6784A. This command is part of the voltage protection remote settings.

Sets the positive remote over-voltage protection level. This command is documented only for N678xA SMU models.

Sets the tracking over-voltage protection offset. This command is part of the voltage protection tracking commands (Option J01).

Enables or disables tracking over-voltage protection. This tracking command is only available on Option J01.

Sets the output voltage range.

Sets the output voltage slew rate. The immediate slew rate can be set to a numeric value or to INFinity.

Enables or disables the maximum slew rate override for output voltage slew control.

Sets the voltage mode used by the power supply in compatibility programming. This command is part of the Agilent 662xA compatibility command set.

Returns the value of the Operation Status Event register for the specified channel list. Reading the event register clears it.

STAT:OPER? (@1)

Sets all defined bits in the status system's PTR registers and clears all bits in the NTR and Enable registers.

STAT:PRES

Returns the value of the Questionable Status Event register for the specified channels. Reading the register clears it.

STAT:QUES?
Typical Response: +1024

Returns the value of the Questionable Status Condition register for the specified channel list. The register is read-only and reading it does not clear the latched status.

STAT:QUES:COND? (@1)

Sets or reads the Questionable Status Enable register for the specified channel list. The register masks which Questionable Event bits are allowed to set the questionable summary bit (QUES) in the Status Byte register.

Sets and reads the value of the Questionable Status Enable register. The enable register masks Questionable Event register bits that contribute to the questionable summary bit (QUES) of the Status Byte register.

STAT:QUES:ENAB 3,(@1)
STAT:QUES:ENAB? (@1)

Sets and reads the value of the Questionable NTR (Negative-Transition) register. This register acts as a polarity filter between the Questionable Condition and Questionable Event registers.

Sets or reads the value of the Questionable NTR (Negative-Transition) register. The register acts as a polarity filter between the Questionable Condition and Questionable Event registers.

STAT:QUES:NTR 3,(@1)
STAT:QUES:NTR? (@1)

Sets and reads the value of the Questionable PTR (Positive-Transition) register. The register acts as a polarity filter between the Questionable Condition and Questionable Event registers; when a bit is set to 1, a 0-to-1 transition of the corresponding Questionable Condition bit sets the corresponding Questionable Event bit.

Sets or reads the value of the Questionable PTR (Positive-Transition) register. The register acts as a polarity filter between the Questionable Condition and Questionable Event registers.

STAT:QUES:PTR 3,(@1)
STAT:QUES:PTR? (@1)

Enables specific bits in the operation event register for the selected channels.

Sets the negative transition filter for the selected operation status register bits.

Presets all enable and transition registers to power-on.

Sets the positive transition filter for the operation status register. The command applies to the selected channel list.

Returns the current value of the Operation Condition register in the Status subsystem.

STAT:OPER:COND?

This query returns the number of output channels in a mainframe.

SYST:CHAN?
Typical Response: +4

Returns the model numbers of the specified output channels.

SYST:CHAN:MOD? (@2,3)

Returns a list of options installed in each channel specified in the channel list.

SYST:CHAN:OPT? (@1:3)

Returns the serial number of the specified output channels.

SYST:CHAN:SER? (@2,3)

Configures the instrument's remote/local state. The setting can be LOCal, REMote, or RWLock; the query returns the current state as LOC, REM, or RWL.

SYST:COMM:RLST REMote
SYST:COMM:RLST?

Queries the instrument remote/local state. The query returns LOC, REM, or RWL.

SYST:COMM:RLST?

Returns the control connection port number used to open a control socket connection to the instrument. The control socket can then be used to send Device Clear or detect SRQ events.

SYST:COMM:TCP:CONT?

Returns the next error number and its corresponding message string from the error queue. Errors are retrieved in FIFO order and cleared as they are read; if no errors have occurred, the instrument responds with +0,"No error".

SYST:ERR?

Returns information about channels that are grouped. Defined groups are enclosed in quotes.

SYST:GRO:CAT?
Response with 4 channels; none grouped: "1","2","3","4"
Response with channels 1 + 2 grouped; 3 + 4 grouped: "1,2","3,4"
Response with channels 1 - 3 grouped; channel 4 not grouped: "1,2,3","4"

Defines a list of output channels as a paralleled group, creating a single output with higher current and power capability. Up to four channels per mainframe can be grouped, and the change takes effect after reboot.

SYST:GRO:DEF (@1:3)
SYST:GRO:DEF (@1,4)

Removes the indicated channel from a group, leaving the other channels intact. To make the group change take effect, reboot the unit; the command also deletes any previously saved states.

SYST:GRO:DEL 3

Deletes all groups on a mainframe and returns any grouped channels to an ungrouped state. To make the group changes take effect, the unit must be rebooted; this command also deletes any previously saved states.

SYST:GRO:DEL:ALL

Resets the front panel lockout password to the factory-shipped setting of zero (0). It does not reset the calibration password.

SYST:PASS:FPAN:RES

Causes the instrument to reboot to its power-on state.

SYST:REB

Returns the version of the SCPI standard with which the instrument is in compliance. The return is a string in the form "YYYY.V".

SYST:VERS?

Sends an immediate trigger to the measurement system. When the trigger system is initiated, the instrument measures the output voltage or current and stores the results in a buffer.

TRIG:ACQ (@1,2)

Sets the triggered current level of the specified output channel when the measurement trigger source is set to current. Units are in amperes.

TRIG:ACQ:CURR 2,(@2)
TRIG:ACQ:CURR (@2)

Sets the slope of the current signal for the specified output channel when the trigger source for the measurement is set to a current level. Positive selects a rising slope and negative selects a falling slope.

TRIG:ACQ:CURR:SLOP POS,(@2)
TRIG:ACQ:CURR:SLOP (@2)

Selects the trigger source for the measurement trigger system for the specified channel list. The source can be BUS, an output current or voltage level, an external connector pin, or a transient system source.

TRIG:ACQ:SOUR PIN1,(@2)
TRIG:ACQ:SOUR? (@1)

Enables or disables measurement triggers being sent to any digital port pin configured as a trigger output. The enabled state is ON (1) and the disabled state is OFF (0).

TRIG:ACQ:TOUT ON,(@2)
TRIG:ACQ:TOUT? (@2)

Sets the triggered voltage level of the specified output channel when the measurement trigger source is set to voltage. Units are volts.

TRIG:ACQ:VOLT 5,(@2)
TRIG:ACQ:VOLT (@2)

Sets the slope of the voltage signal for the specified output channel when the trigger source for the measurement is a voltage level. Positive means a rising slope; negative means a falling slope.

TRIG:ACQ:VOLT:SLOP POS,(@2)
TRIG:ACQ:VOLT:SLOP? (@2)

Sends an immediate trigger signal to the external data logger, causing it to trigger regardless of the selected trigger source.

TRIG:ELOG @1

Selects the trigger source for the external data logger. The query returns the current data log trigger source for the specified channel list.

TRIG:ELOG:SOUR BUS,@1
TRIG:ELOG:SOUR? @1

Generates an immediate transient trigger regardless of the selected trigger source. Output triggers affect voltage, current, and current limit.

TRIG:TRAN (@1,2)

Selects the trigger source for the output trigger system on the specified channel list. The source can be BUS, EXTernal, IMMediate, PIN<n>, or TRANsient<n>.

TRIG:TRAN:SOUR PIN1,(@2)
TRIG:TRAN:SOUR? (@1)

Resets the measurement trigger system to the Idle state.

Stops the external data log.

Resets the transient trigger system to the Idle state.

Takes a measurement and returns the instantaneous output current. The optional DC suffix is documented in the syntax line.

Takes a measurement and returns the instantaneous output power. This array command is available only on N676xA, N678xA SMU and Option 054.

Takes a measurement and returns the instantaneous output voltage. This array command is documented for the N676xA, N678xA SMU and Option 054.

Takes a measurement and returns the total rms current (AC + DC).

Takes a measurement and returns the high level of a current pulse.

Takes a measurement and returns the low level of a current pulse.

Takes a measurement and returns the maximum current.

Takes a measurement; returns the minimum current.

Takes a measurement and returns the average current.

Takes a measurement and returns the average output power. The optional `:DC` node is shown in the syntax line.

Takes a measurement and returns the total rms voltage, including AC and DC components.

Takes a measurement and returns the high level of a voltage pulse.

Takes a measurement and returns the low level of a voltage pulse.

Takes a measurement and returns the maximum voltage.

Takes a measurement and returns the minimum voltage. The command is in the scalar measurement voltage group.

Takes a measurement and returns the average voltage. The optional DC qualifier selects the DC component of the scalar voltage measurement.

Queries the measured output current of the specified output channel. The response is a real number.

Sets the trigger voltage level. After reset, the trigger voltage is MIN.

[SOUR:]VOLT:TRIG MIN