Table of Contents
Advertisement
Model 6220/6221 User's Manual
4.
5.
The following query command is used to return the response to a query
command sent over the serial port:
SYSTem:COMMunicate:SERial:ENTer?
When communicating over the serial port, there are no errors reported if a
Model 2182A is not connected to the serial port.
Examples – The following commands demonstrate proper syntax for
sending commands and returning responses to queries over the serial port:
SYST:COMM:SER:SEND "VOLT:RANG 1"
SYST:COMM:SER:SEND "VOLT:RANG?"
SYST:COMM:SER: ENT?
Set measurement units – Volts are the default units for the Model 6221
but can instead be expressed (and displayed) as an Ohms, Watts, or Sie-
mens reading (see
"Measurement
commands to set measurement units are listed in
example shows the command sequence to select average power measure-
ment units:
UNIT W
UNIT:POWer AVERage ' Select Average power type.
Set up, arm, and run Pulse Delta – Details on the commands to set up
and arm Pulse Delta are provided in
onstrates the proper sequence to set up, arm, and run a Fixed output:
*RST
SOUR:PDEL:HIGH 10e-3
SOUR:PDEL:LOW 0
SOUR:PDEL:WIDT 500e-6
SOUR:PDEL:SDEL 100e-6
SOUR:PDEL:COUN 200
SOUR:PDEL:RANG BEST
SOUR:PDEL:INT 10
SOUR:PDEL:SWE OFF
SOUR:PDEL:LME 2
TRAC:POIN 200
SOUR:PDEL:ARM
INIT:IMM
A.
Trace points specifies the size of the buffer. Buffer size should be the
same value as Pulse Delta count. See
commands.
Return to
Delta, Pulse Delta, and Differential Conductance 5-31
units" on
page 5-11
' Select power (Watts) measurement units.
Table
5-3. The following example dem-
' Restores 6221 defaults.
' Sets pulse high value to 10mA.
' Sets pulse low value to 0mA.
' Sets pulse width to 500µs.
' Sets source delay to 100µs.
' Sets pulse count to 200.
' Selects the best source range.
' Sets pulse interval to 10 PLC.
' Disables sweep function.
' Set for two low pulse measurements.
' Sets buffer to 200 points.
' Arms Pulse Delta.
' Starts Pulse Delta measurements.
Section 6
Section 5 topics
' Select 1V range for 2182A.
' Send range query.
' Return response to query.
for details). The
Table
5-1. The following
A
for details on all buffer
B
Advertisement
Table of Contents
