def setUp(self): vna = Vna() vna.open_tcp() vna.clear_status() vna.manual_sweep = True timeout_ms = 2 * vna.sweep_time_ms + 5000 vna.start_sweeps() vna.pause(timeout_ms) self.vna = vna
def setUp(self): self.serial_no = "123" self.settings = default_settings.copy() path = get_root_path() / "test_measure" self.settings['save']['directory'] = path vna = Vna() vna.open_tcp() vna.clear_status() self.vna = vna
def setUp(self): root_path = get_root_path() / "test_diagram" serial_no = "123" by_serial_no = True self.path = SavePath(root_path, serial_no, by_serial_no) vna = Vna() vna.open_tcp() vna.clear_status() vna.manual_sweep = True timeout_ms = 2 * vna.sweep_time_ms + 5000 vna.start_sweeps() vna.pause(timeout_ms) self.vna = vna self.settings = default_settings.copy()
def connect_to_vna(self, address): self.disconnect_from_vna() try: vna = Vna() vna.open_tcp(address) if not vna.connected(): raise self.command_error(f"cannot connect to '{address}'") except (error, herror, gaierror, timeout): raise self.command_error( f"socket error while connecting to '{address}'") except ConnectionError: raise self.command_error( f"connection error while connecting to '{address}'.") self.vna = vna
def main(): parser = argparse.ArgumentParser( description='Connect to a Rohde & Schwarz VNA') parser.add_argument('--visa', metavar='bus', default=False, help="use VISA with 'bus'") parser.add_argument('--address', default='127.0.0.1', help='instrument address') parser.add_argument('--timeout', default=5000, type=int, help='default instrument timeout (ms)') parser.add_argument('--log', default='', help='SCPI command log filename') args = parser.parse_args() vna = Vna() try: if args.visa: vna.open(args.visa, args.address) else: vna.open_tcp(args.address) if args.timeout: vna.timeout_ms = args.timeout if vna.connected(): print("connected: {0}".format(vna.id_string())) if args.log: vna.open_log(args.log) vna.log.write('{0}\n'.format(datetime.datetime.now())) vna.log.write('--------------------------\n\n') vna.print_info() sys.path.insert(0, os.getcwd()) code.interact('', local=locals()) sys.exit(0) else: raise Exception('Could not connect to instrument') except SystemExit: pass except: print('Error connecting to instrument\n') parser.print_help() finally: if vna.log: vna.close_log() if vna.connected(): vna.close()
def test_save_measurement_locally(self): vna = Vna() vna.open_tcp('rsa22471.local') vna.preset() ports = [1, 2] ch = vna.channel() try: success = ch.save_measurement_locally('test', ports) except: print(sys.exc_info()[0]) print(vna.errors) raise if not success: print(vna.errors) vna.clear_status() self.assertTrue(success)
def setUp(self): source_root = os.path.dirname(os.path.realpath(__file__)) self.source_root = Path(source_root) root_path = get_root_path() / "test_html" serial_no = self.serial_no = "123" by_serial_no = True self.path = SavePath(root_path, serial_no, by_serial_no) vna = Vna() vna.open_tcp() vna.clear_status() vna.manual_sweep = True timeout_ms = 2 * vna.sweep_time_ms + 5000 vna.start_sweeps() vna.pause(timeout_ms) self.vna = vna self.settings = default_settings.copy()
def connect_to_vna(address): vna = Vna() try: vna.open_tcp(address) except: print("\n\n* Error!\n* Problem connecting to VNA at ip {0}".format(address)) return None try: if not vna.connected(): print("\n\n* Error!\n* Problem connecting to VNA at ip {0}".format(address)) return None if not vna.properties.is_known_model(): print("\n\n* Error!\n* Could not find R&S VNA at ip {0}".format(address)) print("* *IDN? response: {0}".format(vna.id_string())) return None; except: print("\n\n* Error!\n* Problem connecting to VNA at ip {0}".format(address)) return None # set long timeout, vna.timeout_ms = 60000 return vna
def main(): parser = argparse.ArgumentParser(description='Connect to a Rohde & Schwarz VNA') parser.add_argument('--visa', metavar='bus', default=False, help="use VISA with 'bus'") parser.add_argument('--address', default='127.0.0.1', help='instrument address') parser.add_argument('--log', default='', help='SCPI command log filename') args = parser.parse_args() vna = Vna() try: if args.visa: vna.open(args.visa, args.address) else: vna.open_tcp(args.address) if vna.connected(): print("connected: {0}".format(vna.id_string())) if args.log: vna.open_log(args.log) vna.log.write('{0}\n'.format(datetime.datetime.now())) vna.log.write('--------------------------\n\n') vna.print_info() code.interact('', local=locals()) else: print('Could not connect to instrument\n') parser.print_help() except SystemExit: pass except: print('Error connecting to instrument\n') parser.print_help() finally: if vna.log: vna.close_log() if vna.connected(): vna.close()
from pathlib import Path from power_deembed import read_s21 from rohdeschwarz.instruments.vna import Vna # patch rohdeschwarz vna import power_deembed.patch.vna.channel.power_cal root_path = Path(__file__).parent filename = str(root_path / 'test' / 'fixtures' / '3 dB attenuator.s2p') channel = 1 wave = 'b1' vna = Vna() vna.open_tcp() # offsets ch = vna.channel(channel) freq_Hz, offsets_dB = read_s21(filename) assert not False in freq_Hz == ch.cal_freq_Hz # interpolate # offsets_dB = np.interp(ch.cal_freq_Hz, freq_Hz, offsets_dB) # deembed, apply power_cal_dB = ch.get_power_cal(wave) - offsets_dB ch.set_power_cal(power_cal_dB)
from rohdeschwarz.instruments.vna import Vna # Connect vna = Vna() vna.open_tcp('127.0.0.1') # Calibrate channel 1 ports 1, 2 # using automatic cal unit index = 1 ports = [1, 2] vna.channel(index).auto_calibrate(ports)
set_file = str(root_path / 'sets' / 'set.znxml') # IP address address = '192.168.86.192' # create Vna instance vna = Vna() # log vna.open_log(log_file) vna.print_info() # connect to instrument (no visa) vna.open_tcp(address) # alternatively, using pyvisa: # vna.open('gpib', 20) # preset and clear errors vna.clear_status() vna.preset() vna.pause() # create an interesting setup # to save ch1 = vna.channel(1) ch1.start_frequency_Hz = 1.0e9 ch1.stop_frequency_Hz = 2.0e9 ch1.points = 401
from cal_functions import connections from cal_functions import get_cal_steps from rohdeschwarz.instruments.vna import Vna # Provide this information: ip_address = '127.0.0.1' timeout_ms = 5 * 60 * 1000 # 5 mins ports = range(1, 21) # VNA Ports 1-20 cal_size = 8 # Cal unit is 8 ports # Assuming channel 1 ('SENS1') # for simplicity's sake # Connect to VNA vna = Vna() vna.open_tcp(ip_address) # Delete any previously defined cal steps vna.write("SENS1:CORR:COLL:AUTO:ASS:DEL:ALL") # Setup for full N-Port calibration with cal unit vna.write("SENS1:CORR:COLL:AUTO:CONF FNPort,''") # get cal steps steps = get_cal_steps(ports, cal_size) num_steps = len(steps) # Define each cal step via SCPI for i in range(1, num_steps + 1): step = [str(n) for n in steps[i]] step = ",".join(step)
#!/usr/bin/env python from lib.homepath import expand_home_path from lib.save import create_save_action from lib import schedule from pathlib import Path from rohdeschwarz.instruments.vna import Vna from ruamel import yaml settings = {} with open('settings.yaml', 'r') as f: settings = yaml.safe_load(f.read()) # Connect to VNA vna = Vna() vna.open_tcp(settings['vna address']) vna.timeout_ms = 10*60*1000 # 10 mins # Create lamdba function. # Function will be called on interval path = expand_home_path(settings['path']) action = create_save_action(vna, path) # run interval = settings['interval (mins)'] duration = settings['duration (hrs)'] schedule.run(interval, duration, action)
def tearDownClass(self): vna = Vna() vna.open_tcp() vna.close()
from rohdeschwarz.instruments.vna import Vna # Connect vna = Vna() vna.open_tcp('localhost') # Preset instrument (optional) vna.clear_status() vna.preset() vna.pause() # Settings for ch1 calibration ch1 = vna.channel(1) ch1.sweep_type = 'lin' # linear freq sweep ch1.start_frequency_Hz = 1,'GHz' ch1.stop_frequency_Hz = 2,'GHz' ch1.points = 101 ch1.if_bandwidth_Hz = 1,'KHz' ch1.power_dBm = -10 # dBm # check for cal unit(s) assert vna.cal_units # Calibrate ports = [1, 2] ch1.auto_calibrate(ports) assert not vna.errors
def main(): parser = argparse.ArgumentParser( description='Connect to a Rohde & Schwarz VNA') parser.add_argument('--visa', metavar='bus', default=False, help="use VISA with 'bus'") parser.add_argument('--address', default='127.0.0.1', help='instrument address') parser.add_argument('--port', default=5025, type=int, help='port (TCP only)') parser.add_argument('--timeout', default=5000, type=int, help='default instrument timeout (ms)') parser.add_argument('--log', help='SCPI command log filename') parser.add_argument( '--export-cal-data', action='store_true', help='Save corrections to numpy `savez` (*.pyz) data file') parser.add_argument('--outer-channel', type=int, help='channel with outer corrections') parser.add_argument('--outer-cal-group', help='cal group containing outer corrections') parser.add_argument('--inner-channel', type=int, help='channel with inner corrections') parser.add_argument('--inner-cal-group', help='cal group containing inner corrections') parser.add_argument('--filename', default='Port {port}.s2p', help="default: 'Port {port}.s2p'") parser.add_argument('ports', type=int, nargs='+', help='VNA ports to extract DUTs from') args = parser.parse_args() if not args.inner_channel and not args.inner_cal_group: print('error: must include inner source, either channel or cal group') parser.print_help() sys.exit(-1) if not args.outer_channel and not args.outer_cal_group: print('error: must include outer source, either channel or cal group') parser.print_help() sys.exit(-1) vna = Vna() try: if args.visa: vna.open(args.visa, args.address) else: vna.open_tcp(args.address, args.port) if args.timeout: vna.timeout_ms = args.timeout if vna.connected(): if args.log: vna.open_log(args.log) print_header(vna.log, 'R&S S2P Extractor', '1.0') vna.print_info() else: raise Exception('Could not connect to instrument') if args.outer_channel: outer_source = Source(Type.CHANNEL, args.outer_channel) else: outer_source = Source(Type.CAL_GROUP, args.outer_cal_group) if args.inner_channel: inner_source = Source(Type.CHANNEL, args.inner_channel) else: inner_source = Source(Type.CAL_GROUP, args.inner_cal_group) print(f"ports: {args.ports}") for port in args.ports: filename = args.filename.format(port=port) print(f' {filename}') calculate(vna, outer_source, inner_source, port, filename, args.export_cal_data) except Exception as err: parser.print_help() raise finally: if vna.connected(): vna.errors vna.clear_status() if vna.log: vna.close_log() if vna.connected(): vna.close()
import csv from trace_history.command_line import parse_args from trace_history.default_time import default_time_s from trace_history.timestamp import timestamp import os from rohdeschwarz.instruments.vna import Vna from si_prefix import si_format import sys # parse cli args = parse_args() # init connection vna = Vna() vna.open_tcp(args.ip_address) vna.open_log(args.log_file) vna.timeout_ms = args.timeout_ms # clear previous scpi errors vna.clear_status() # current date and time? now = timestamp() # set file args.set_file = args.set_file or vna.active_set vna.open_set(args.set_file) vna.active_set = args.set_file