BIT 4886 051010
B-17
B.60 [SOURce:]VOLTage:MODE? QUERY
VOLT:MODE?
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:MODE?
Long Form: [SOURce:]VOLTage[:LEVel]:MODE?
Return value:
FIXED or LIST or TRANS
Description:
Identifies active voltage mode.
Returns LIST while list is being executed. Returns TRANSIENT after
VOLT:MODE TRAN nn command has been issued, but before VOLT: or *TRG command executes the
transient. Returns FIXED while in fixed (default) mode of operation.
Related Commands:
LIST com-
mands. (See example, Figure B-3.)
B.61 [SOURce:]VOLTage[:LEVel]:RANGe COMMAND
VOLT:RANG
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:RANG <value>
Long Form: [SOURce:]VOLTage[:LEVel]:RANGe <value>
<value> = 1 (full scale) or 4 (1/4 scale)
Description:
Allows the user to specify the operating range for the active mode (either voltage or current).
When in voltage mode this command establishes the voltage range, in current mode it establishes the
current range. Range = 1 allows control of output voltage or current from 0 to full scale. Range = 4
allows the full range of the 16 bit D to A converter to control 1/4 of the full scale output voltage or cur-
rent to provide greater accuracy. This command overrides VOLT:RANG:AUTO and turns auto ranging
off. (Similar to CURR:RANG shown in Figure B-4.)
B.62 [SOURce:]VOLTage:[:LEVel]RANGe? QUERY
VOLT:RANG?
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:RANG?
Long Form: [SOURce:]VOLTage[:LEVel]:RANGe?
Return value:
1 (full scale) or 4 (1/4 scale)
Description:
Identifies active range.
Returns 1 (full scale) or 4 (1/4 scale) (Similar to CURR:RANG? shown in Fig-
VOLT:RANG:AUTO
B.63 [SOURce:]VOLTage:[:LEVel]RANGe:AUTO COMMAND
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:RANG:AUTO <boolean>
Long Form: [SOURce:]VOLTage[:LEVel]:RANGe:AUTO <boolean>
<boolean> = 1 (on) or 0 (off)
Description:
Allows the user to specify automatic range for control of output voltage or current.
Upon power
up or upon receiving *RST, automatic ranging is selected. Automatic ranging can be turned off by
VOLT:RANG:AUTO 0, CURR:RANG:AUTO 0, VOLT:RANG 1 or 4, or CURR:RANG 1 or 4. When
automatic ranging is set, the correct range is automatically selected based on the programmed param-
eter. If the programmed parameter is more than 1/4 of nominal full scale, full scale is selected; if equal
to or less than 1/4 of full scale, the 1/4 scale range is selected. For example, if auto ranging is set for a
unit with 100V nominal output operating in voltage mode, a programmed voltage of up to 25.0V auto-
matically selects range to 1/4 scale, while programming anything above 25.0V selects full scale. Func-
tion is identical to CURR:RANG:AUTO.
B.64 [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPlitude] COMMAND ?
VOLT:TRIG
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:TRIG[:AMP] <exp_value>
Long Form: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPlitude] <exp_value>
<exp_value> = digits with decimal point and Exponent, e.g., 2.71E1 for 27.1
Description:
Programs voltage value to be transferred to output by *TRG or TRIG commands.
Actual output
voltage will depend on load conditions. If the value exceeds the maximum for the model being pro-
grammed, error message -222,”Data out of range” is posted in output queue. If value exceeds
VOLT:LIM:HIGH value, a value corresponding to the voltage limit will be programmed. (See example,
Figure B-5.)
B.65 [SOURce:]VOLTage:[:LEVel]:TRIGgered[:AMPlitude]? QUERY
VOLT:TRIG?
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:TRIG[:AMP]?
Long Form: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPlitude]?
Return Value:
<exp_value> = digits with decimal point and Exponent, e.g., 2.71E1 for 27.1
Description:
Returns value established by VOLT:TRIG command representing voltage value to be pro-
grammed by *TRG or TRIG command.
(See example, Figure B-5.)
