Agilent Technologies E5071C Manual page 1298

2 Channels Measurement
Overview
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Sample Program in Excel VBA (VISA-COM)
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Other topics about TDR Sample Program
Overview
2 channel measurement allows you to makes TDR measurement on
channel 1 and more customized S-parameter measurement on channel2.
This is a program example of the 2 Channel Measurement Example. In 2
channel measurement, you need to setup two logical instrument, E5071C
and E5071C-TDR. In this sample program, the E5071C is assigned as ENA
and E5071C-TDR is assigned as ENATDR.
The TDR commands should be sent to ENATDR and The E5071C standard
commands should be sent to ENA.
Note for 2 Channels Measurement
Put *OPC? to make sure to finish the process before you change the
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control from ENA to ENATDR or ENATDR to ENA.
DUT topology setting should be executed at the beginning of
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sequence, because changing DUT Topology presets the E5071C.
Sample Program in Excel VBA (VISA-COM)
Grobal valiables
Dim rm As VisaComLib.ResourceManager
Dim ENA As VisaComLib.FormattedIO488
Dim ENATDR As VisaComLib.FormattedIO488
Dim NumDmy As Integer
Open Instruments
Sub OpenInstrument()
On Error GoTo errorhandler
Set rm = New VisaComLib.ResourceManager
Set ENA = New VisaComLib.FormattedIO488
Set ENATDR = New VisaComLib.FormattedIO488
' Change the address for your configuration
Set ENA.IO = rm.Open("GPIB0::17::INSTR")
' Set time out time for ENA at 30 second
ENA.IO.Timeout = 30000
Programming
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