RigolDataLoggingOriginal.py

#this script just takes current data from the RIGOL DM3058E over an allotted time
import visa
import time
import csv
from visa import constants


#modify test time in seconds
testTime = 15*60

#setting up dmm conection
rm = visa.ResourceManager()

#you can receive the instrument's ID if you use print(rm.list_resources())
print(rm.list_resources())

dmm = rm.open_resource('USB0::0x1AB1::0x09C4::DM3R194201991::INSTR')

#wait for keypress to start the timer
start = input("Enter a key to start the program")

#timed loop
timeEnd = time.time() + testTime

print('Experiment has started. DO NOT CLOSE THIS WINDOW.')

count = 0

timeStart = time.time()
#writes data in a csv
with open('datapoint.csv', 'w', newline='') as csvfile:
	fields = ['time', 'current']
	writer = csv.DictWriter(csvfile, fieldnames=fields)

	#outputs headers
	writer.writeheader()

	#loops until time runs out
	while time.time()<timeEnd:
		currTime = float(time.time() - timeStart)
		dmmCurrent = float(dmm.query(":MEASure:CURRent:DC?"))

		writer.writerow({'time': currTime, 'current': dmmCurrent})

		#console printouts so that the user has a visible timer
		print(timeEnd - time.time())
		print(count)
		count = count+1