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5-20
Delta, Pulse Delta, and Differential Conductance
Table 5-2
Delta commands
[SOURce[1]]:DELTa:NVPResent? Queries connection to 2182A.
[SOURce[1]]:DELTa:HIGH <NRf> Sets high source value (amps).
[SOURce[1]]:DELTa:LOW <NRf>
[SOURce[1]]:DELTa:DELay <NRf> Sets Delta delay (seconds).
[SOURce[1]]:DELTa:COUNt <NRf> Sets the number of cycles to run.
[SOURce[1]]:SWEep:COUNt <NRf> Sets the number of measurement sets to
[SOURce[1]]:DELTa:CSWitch <b> Enable cold switching mode.
[SOURCE[1]]:DELTa:CABort <b> Enable or disable Compliance Abort.
[SOURce[1]]:DELTa:ARM
[SOURce[1]]:DELTa:ARM?
1. Use the :NVPResent command to determine if a suitable Model 2182/2182A
with the correct firmware revision is properly connected to the RS-232 port.
This query command can be used for the system configuration shown in
Figure
2. See
3. After setting up Delta using the above setup commands, the :ARM command
arms Delta. During the arming process, the Model 622x communicates with
the Model 2182/2182A.
When armed, Delta will start when the Model 6221 is triggered. Delta can be
"un-armed" by sending the following command: SOURce:SWEep:ABORt.
The query form for the arm command (SOUR:DELT:ARM?) is used determine
if Delta is armed. A returned "1" indicates that Delta is armed. A "0" indicates
that Delta is not armed.
If the Model 6221 is already armed for a another action (e.g., Differential Con-
ductance or Pulse Delta), the Delta arm command will "un-arm" the other
action and arm Delta.
Command
5-2B on
page
5-5.
"Configuration
settings" on
Return to
Description
1 = yes, 0 = no
<NRf> = 0 to 105e-3
Sets low source value (amps).
<NRf> = 0 to -105e-3
<NRf> = 0 to 9999.999 or INFinity
<NRf> = 1 to 65536 (finite count) or INFinity
2
repeat.
<NRf> = 1 to 65536 (finite count) or INFinity
<b> = 0 or OFF, 1 or ON
<b> = 0 or OFF, 1 or ON
3
Arms Delta.
Queries Delta arm.
1 = armed, 0 = not armed
page 5-15
for details on these settings.
Section 5 topics
Model 6220/6221 User's Manual
1
2
2
2
2
2
2
Default
1e-3
-1e3
0
INF
1
0
0
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