How can I automate measurements in VNA Tools II

[Michael Wollensack METAS]

How can I automate measurements in VNA Tools II?

[Michael Wollensack METAS]

You can use the Script engine of VNA Tolls II for measurement automation, see the following example:

import clr

clr.AddReference('System.Windows.Forms')

clr.AddReference('Metas.Vna.Tools')

clr.AddReference('Metas.Vna.Data')

clr.AddReference('Metas.Instr.Driver')

clr.AddReference('Metas.Instr.VisaExtensions')

from System.IO import Directory

from System.Threading import Thread

from System.Windows.Forms import MessageBox

from Metas.Vna.Tools import Script

from Metas.Instr.VisaExtensions import SrqMessageBasedSession

from Metas.Vna.Data import VnaParameter

print 'Measurement Automation - Michael Wollensack METAS - 08.07.2014'

vnaDevice = 'Agilent_PNA_N5225A'

journalPath = 'Journal_01.vnalog'

dutName = 'DUT_01'

measurementDir = 'Measurements_01\\DUTs\\' + dutName + '\\' 

s = Script()

s.RootPath = RootPath

# Create Measuremet Directory

Directory.CreateDirectory(RootPath + '\\' + measurementDir)

# Open VNA

vna = s.OpenVna(vnaDevice)

# Setup Sx,x Ports: 1,2

vna.ParameterMatrix = VnaParameter.SParameterMatrix(2)

# Load Journal

journal = s.LoadJournal(journalPath)

# Open DUT

dut = SrqMessageBasedSession('visa://l-217-01-64.ad.metas/GPIB0::8::INSTR')

# Measurement 1

fname = measurementDir + dutName + '_A1A2A3A4.sdatb'

print fname

dut.Write('A1A2A3A4')

Thread.Sleep(1000)

journal.AddMeasurementJournalItem(vnaDevice, fname, vna)

s.SaveJournal(journalPath, journal)

# Measurement 2

fname = measurementDir + dutName + '_B1B2B3B4.sdatb'

print fname

dut.Write('B1B2B3B4')

Thread.Sleep(1000)

journal.AddMeasurementJournalItem(vnaDevice, fname, vna)

s.SaveJournal(journalPath, journal)

# Close VNA

vna.Close()

print 'Please reload the ' + journalPath + ' in the tabular page called Measurement Journal.'

[przeme...@gmail.com]

Thank You for example its very useful for python noob like me:) I will test it.
I'm still impressed of huge work to create VNA Tools with all options and functions.
Thanks.

[Jan Grajciar CMI]

Hi Michael,

I don't know exactly what I'm doing wrong. Commands with Termination Character '\n' are not sent to the DUT, nor do they come from the DUT. TerminationCharacterEnable is True. What am I doing wrong?

Thank you for any advice,

Jan

Dne úterý 8. července 2014 v 11:04:36 UTC+2 uživatel Michael Wollensack METAS napsal:

[Jan Grajciar CMI]

comparison of METAS VNA Tools and Keysight IO Libraries

Dne středa 8. března 2023 v 16:20:38 UTC+1 uživatel Jan Grajciar CMI napsal:

[Michael Wollensack METAS]

Hi,

try

dut.Write('LISN:LINE 1\n')

Npath = dut.Query(LISN:LINE?\n')

I've to do the same workaround for SOCKET connections.

Hope this helps.

Regards

Michael