Note:
I did look at this code https://forum.tek.com/viewtopic.php?t=136170
Which is interesting but does not work with the current version of Python PyVISA lib.
Noting that this code works with version 1.8.
It also has no licence so technically it is copyrighted. I have included the MIT licence.
With the code. However this instrument is old so I do not know it it will be of any use to anyone.
on a side note I think VISA is a bad abbreviation for a standard as is the easily confused with the other uses of this name.
# -*- coding: utf-8 -*-
"""
Created on Tue Jan 17 14:42:26 2017
@author: craig.wroth
This Script will produce a Log File of Measurements from a Tektronix
2024B Oscilloscope. This is not the wave forms but the measurements of the
Oscilloscope that have been set up using the Measure Button.
There is 5 available. The purpose of this is to allow for a very long time to
be monitored ie hours to days.
See Following for More information
TDS 200-Series Digital Oscilloscope Programmer Manual
Copyright (c) 2016
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""
import visa
import time
import os
rm = visa.ResourceManager()
alist = rm.list_resources()
print alist # Normaly (u'ASRL1::INSTR', u'ASRL3::INSTR', u'USB::0x0699::0x036A::C102692::INSTR')
#Note Our instrument is No3 Hence position 2 in list
inst = rm.open_resource(alist[2])
NewFile = time.strftime("%a%d%b%Y")+".csv"
Rev = 0
#Code to Increment File Rev on day
while os.path.exists(NewFile) == True:
NewFile = time.strftime("%a%d%b%Y")+"rev"+str(Rev)+".csv"
Rev = Rev+1
WF = open(NewFile,'w') #WF -> Working File
WF.write("Log File started ")
WF.write(time.asctime( time.localtime(time.time()) ))
WF.write("\n")
WF.close()
Stime = time.time() #Start Time
Duration = 0.1 #Time of test in mins
EndTime = Stime + Duration*60
SampleTime = 2 # Time between samples in sec note less that 1 not practical
WF = open(NewFile,'a')
WF.write("Time,Measure1,Measure2,Measure3,Measure4,Measure5\n")
inst.write(":header off")
WF.write("Measure Description,")
astring = inst.query("MEASUrement:MEAS1?")
print astring
WF.write(astring[:len(astring)-1] +",")
astring = inst.query("MEASUrement:MEAS2?")
print astring
WF.write(astring[:len(astring)-1] +",")
astring = inst.query("MEASUrement:MEAS3?")
print astring
WF.write(astring[:len(astring)-1] +",")
astring = inst.query("MEASUrement:MEAS4?")
print astring
WF.write(astring[:len(astring)-1] +",")
astring = inst.query("MEASUrement:MEAS5?")
print astring
WF.write(astring[:len(astring)-1] +",")
WF.write("\n")
inst.write(":header on")
while time.time() < EndTime :
WF.write(time.strftime("%X")+",")
atime = time.time()
print (time.strftime("%X"))
#print (atime)
atime = atime%1 #obtain fractions of seconds
#print (atime)
astring = inst.query("MEASUrement:MEAS1:VALue?")
astring = astring[len("MEASUrement:MEAS1:VALue?"):len(astring)-1] #Befor I discovered inst.write(":header off")
WF.write(astring +",")
astring = inst.query("MEASUrement:MEAS2:VALue?")
astring = astring[len("MEASUrement:MEAS2:VALue?"):len(astring)-1]
WF.write(astring +",")
astring = inst.query("MEASUrement:MEAS3:VALue?")
astring = astring[len("MEASUrement:MEAS3:VALue?"):len(astring)-1]
WF.write(astring +",")
astring = inst.query("MEASUrement:MEAS4:VALue?")
astring = astring[len("MEASUrement:MEAS4:VALue?"):len(astring)-1]
WF.write(astring +",")
astring = inst.query("MEASUrement:MEAS5:VALue?")
astring = astring[len("MEASUrement:MEAS5:VALue?"):len(astring)-1]
WF.write(astring +",")
WF.write("\n")
time.sleep((1-atime)+(SampleTime-1))
print ("The New File is "+NewFile)
print (time.asctime( time.localtime(time.time()) ))
WF.close()
inst.close()
