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 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()
# paths
root_path = Path(__file__).parent.resolve()
log_file = str(root_path / 'vna.log')
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
#!/usr/bin/env python
from pathlib import Path, PureWindowsPath
from rohdeschwarz.instruments.vna import Vna, Directory
from skrf import Network
import sys
if __name__ != '__main__':
print('Not a library')
sys.exit(1)
vna = Vna()
vna.open_tcp('127.0.0.1')
vna.open_log('scpi log.txt')
if not vna.cal_units:
print('No cal unit found')
sys.exit(1)
# Control cal unit
cal_unit = vna.cal_unit()
cal_unit.setOpen(1)
cal_unit.setShort(1)
cal_unit.setMatch(1)
cal_unit.setThru(1, 2)
# Temp dir for cal data
vna.file.cd(Directory.default)
temp_dir = PureWindowsPath(vna.file.directory()) / 'CAL_UNIT_DATA'
if vna.file.is_directory(temp_dir):
vna.file.delete_all(temp_dir)
### Commanded vs measured power ###
####################################
from rohdeschwarz.general import print_header
from rohdeschwarz.instruments.vna import Vna
from rohdeschwarz.instruments.vna import SweepType
import matplotlib.pyplot as plt
import numpy as np
# Open instrument connection
vna = Vna()
vna.open('TCPIP', '127.0.0.1')
# SCPI command log
vna.open_log("SCPI Command Log.txt")
print_header(vna.log, "Measure with a1", "0.0.1")
vna.print_info()
# Preset
vna.preset()
vna.pause()
vna.clear_status()
# Setup channel 1
ch1 = vna.channel(1)
ch1.sweep_type = SweepType.power
ch1.start_power_dBm = -20.0
ch1.stop_power_dBm = 0
ch1.points = 201
ch1.if_bw_Hz = 1, 'kilo'
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 # make data directory
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()
