Connecting to an Keysight / Agilent oscilloscope

In [ ]:

import pyvisa
import matplotlib.pyplot as plt

rm = pyvisa.ResourceManager()
rm.list_resources()
usb0=rm.list_resources()
VISAAddr = usb0[0]
scope = rm.open_resource(VISAAddr)

scope.write('waveform:SOUR CHAN1')
data = scope.query_binary_values('waveform:data?' , datatype='s')

xIncrement = float(scope.query('waveform:xincrement?'))
xOrigin = float(scope.query('waveform:xorigin?'))
XREFerence = float(scope.query('waveform:XREFerence?'))
yIncrement = float(scope.query('waveform:yincrement?'))
yOrigin = float(scope.query('waveform:yorigin?'))
YREFerence = float(scope.query('waveform:YREFerence?'))
length = len(data)


time = []
wfm = []
for t in range(length):
    time.append((t - XREFerence) * xIncrement + xOrigin)
for d in data:
    wfm.append((d - YREFerence) * yIncrement + yOrigin)


plt.plot(time, wfm)
plt.xlabel('Time (sec)')
plt.ylabel('voltage(V)')
plt.show()