Table of Contents
Advertisement
B.83 [SOURce:]LIST:WAIT:LOW COMMAND
Syntax:
Short Form: LIST:WAIT:LOW value
Long Form: LIST:WAIT:LOW value
where:
<value> = programmed current (Amps) for current list, or programmed voltage (Volts) for voltage list.
Description: Waits for the trigger input to go low before advancing to next step. When the command is exe-
cuted the output is immediately set to the <value>. Pins 1 (GND) and 3 of the Trigger Port are used as
the input trigger. If the trigger input is low (TTL logic 0 or short-circuit) and a wait time has been estab-
lished by LIST:SET:WAIT, the step is immediately skipped. If the trigger input is high (TTL logic 1 or
open circuit), the unit will proceed to the next step when either a) the trigger input goes low or b) the
wait time expires (non-zero wait values only), whichever comes first. If the wait time is 0, the unit must
wait until the trigger input goes low before proceeding to the next step.
In all cases, the trigger input must be high or low for at least 2 microseconds to be considered stable.
This 2 microsecond delay provides a noise filter to insure only a level causes the output change.
This command must be preceded by LIST:CURR or LIST:VOLT command, otherwise a -221 "Settings
Conflict" error results. The entries of the dwell list must match the values in the current or voltage list,
otherwise a -236 "Lists Unbalanced" error results. (See Figures B-6 and B-7.)
B.84 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] COMMAND
Syntax:
Short Form: [SOUR:]VOLT[:LEV][:IMM][:AMP] <exp_value>
Long Form: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude] <exp_value>
<exp_value> = digits with decimal point and Exponent, e.g., 2.71E1 for 27.1
Description: Sets programmed voltage level at power supply output. This command programs output voltage
to a specific value; actual output voltage will depend on load conditions. If the value exceeds the max-
imum for the model being programmed, error message -222,"Data out of range" is posted in output
queue. (See example, Figure B-1.)
B.85 [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? QUERY
Syntax:
Short Form: [SOUR:]VOLT[:LEV][:IMM][:AMP]? {MIN | MAX}
Long Form: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPlitude]? {MIN | MAX}
Description: Identifies programmed voltage, maximum allowable voltage, or minimum voltage. The VOLT?
query returns the programmed value of voltage. Actual output voltage will depend on load conditions.
The VOLT?MAX query returns the maximum voltage allowed for a particular model. VOLT? MIN
returns minimum voltage allowed for power supply (always negative). Related Commands: VOLT.
(See example, Figure B-1.)
B.86 [SOURce:]VOLTage[:LEVel]:LIMit[:BOTH] COMMAND
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:LIM[:BOTH] <value>
Long Form: [SOURce:]VOLTage[:LEVel]:LIMit[:BOTH] <value>
where <value> is between zero and rated (nominal) output voltage
Description: Establishes the software limit <value> for output voltage, i.e., sets the maximum value of positive or
negative output voltage that the unit will be allowed to produce. Requires MEM:UPD (PAR. B.12) to
save for power up. See PAR. 3.5.2.2 and Figure 3-16 for special programming considerations.
B.87 [SOURce:]VOLTage[:LEVel]:LIMit[:BOTH]? QUERY
Syntax:
Short Form: [SOUR:]VOLT[:LEV]:LIM[:BOTH]?
Long Form: [SOURce:]VOLTage[:LEVel]:LIMit:[:BOTH]?
Returns <value>
Description: Identifies the software limit value for both positive and negative output voltage specified by the user.
B-24
LIST:WAIT:LOW
VOLT?
VOLT:LIM[:BOTH]
VOLT:LIM[:BOTH]?
BOP-1K 080709
VOLT
Advertisement
Table of Contents
