Screendump From Siglent DSO via VXI-11

sds_scdp.py

#!/usr/bin/env python

import argparse
import visa, sys
from pyvisa.constants import StatusCode

from PIL import Image
from cStringIO import StringIO

def screendump(device, filename):
    rm = visa.ResourceManager('@py')

    # Siglent SDS2204X
    scope = rm.open_resource('TCPIP::%s' % device)

    n, status = scope.write('SCDP')
    if status == StatusCode.success:
        scope.read_termination = None
        data = scope.read_raw(2000000)
        image = Image.open(StringIO(data))
        image.save(filename)
    scope.close()
    rm.close()

if __name__ == '__main__':

    parser = argparse.ArgumentParser(
        description='Grab a screenshot from a Siglent DSO.')
    parser.add_argument('--output', '-o', dest='filename', required=True,
        help='the output filename')
    parser.add_argument('device', metavar='DEVICE', nargs=1,
        help='the ip address or hostname of the DSO')
    
    args = parser.parse_args()
    screendump(args.device[0], args.filename)