Keithley 6221 User Manual

7-28 Wave Functions (6221 Only) Model 6220/6221 Reference Manual
Return to Section 7 topics
1. SOUR:WAVE:FUNC <name> ‘ Select wave function
As soon as this command is received, the waveform takes effect. After the wave
mode is armed (SOUR:WAVE:ARM), the SOUR:WAVE:INIT command is
required to start the function output. For ARBitrary, X = 0-4. If no X is supplied,
then ARB0 is selected. Location 0 is the volatile waveform memory location. If
this command is sent when the waveform is armed, the Model 6221 will re-arm
itself. If the waveform must be reloaded while the output is enabled, the inactive
value will be output during this period.
An error +525 Cannot save ARB0 as user setup is returned when you try to
save a setup with the WAVE function set to ARB0. This limitation is necessary
because ARB0 is stored in volatile memory and will not be valid after the unit is
power-cycled. When you attempt to do so, the WAVE function will be changed
to SINE (default), this error will be generated, and the save will then proceed
normally.
SOURce[1]:WAVE:ARM Arms 6221 for waveform output.
12
SOURce[1]:WAVE:INITiate Starts waveform output.
13
SOURce[1]:WAVE:ABORt Aborts waveform output.
14
SOURce[1]:WAVE:DURation:TIME <NRf> Sets waveform time duration.
15
<NRf> = 100e-9 to 999999.999 (s)
or INFinity
INFinity
SOURce[1]:WAVE:DURation:CYCLes <NRf> Sets waveform duration in cycles.
16
<NRf> = 0.001 to 99999999900
or INFinity
INFinity
SOURce[1]:WAVE:EXTRig[:ENABle] <b> Enables/disables mode to externally
trigger the waveform generator.
17
<b> = ON or OFF
OFF
SOURce[1]:WAVE:EXTRig:ILINe <NRf> Specify trigger link input trigger line.
18
<NRf> = 0 (none) or 1 to 6
0
SOURce[1]:WAVE:EXTRig:IGNore <b> Sets whether or not to restart
waveform upon retriggering.
19
<b> = ON or OFF
OFF
SOURce[1]:WAVE:EXTRig:IVALue <NRf> Sets inactive value to output before/
after waveform.
20
<NRf> = -1 to +1
0.00
Table 7-4 (cont.)
Waveform function commands
Command Description Default
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Keithley 6221 Specifications

General

Interface	GPIB, RS-232
Communication Interface	GPIB, RS-232
Current Sourcing Accuracy	±(0.03% of output + 20 pA)
Current Sinking Accuracy	±(0.03% of output + 20 pA)
Output Resolution	100 fA
Output Accuracy	±(0.03% of output + 20 pA)
Power Requirements	100 V to 240 V AC, 50/60 Hz