def _open(self):
if self._backend == 'pyVISA':
self._port = visa.ResourceManager() \
.open_resource(self._connection['port'],
write_termination=
self._write_termination,
read_termination=
self._read_termination)
# timeout has to be in ms
self._port.timeout = float(self._connection.get('timeout',
5)) * 1000
elif self._backend == 'linux-gpib':
con = re.findall(r'\d+', self._connection['port'])
self._port = gpib.dev(int(con[0]), int(con[1]))
elif self._backend == 'pySerial':
if not self._port.is_open:
self._port.open()
elif self._backend == 'pyDAQmx':
pass
elif self._backend in ['usbtmc', 'usbtmcWR']:
self._port.open()
elif self._backend == "file":
file = Path(self._port)
if not file.is_file():
self.log.warning("Path ist not a file! Check your port settings in config file!") #pylint: disable=line-too-long
elif self._backend == "vxi11":
self._port = vxi11.Instrument(self._connection["port"].replace(
"vxi11://", ""))
elif self._backend == "modbus":
self._port.open()
def __init__(self, address):
"""Initialize the object
Keyword arguments:
device -- GPIB address of the instrument
"""
self.device = gpib.dev(0, address)
def __init__(self,
name='gpib0',
pad=None,
sad=0,
timeout=gpib.T10s,
send_eoi=1,
eos_mode=0,
eot=True):
self._own = False
self.name = None
if isinstance(name, basestring):
self.id = gpib.find(name)
self.name = name
self._own = True
elif pad is None:
self.id = name
else:
self.id = gpib.dev(name, pad, sad, timeout, send_eoi, eos_mode)
self._own = True
if eot:
self.eot = True
else:
self.eot = False
if self._own:
self.get_status()
def __init__(self, serial_port=None, gpib_num=None, gpib_dev_num=None):
assert serial_port or (gpib_num and gpib_dev_num)
if gpib_num and gpib_dev_num:
self._dev = gpib.dev(gpib_num, gpib_dev_num)
self._gpib_used = True
elif serial_port:
self._dev = ser.Serial('/dev/'+serial_port, 38400)
self._gpib_used = False
def initialize(self):
self.handle = gpib.dev(0, self.port)
#gpib.timeout(self.handle, 12) # timeout T3s = 12; check help(gpib)
print "GPIB::%d is initialized" % self.port
print "GPIB handle = %d" % self.handle
try:
# Print IDN info if available
self.query("*IDN?")
except:
pass
def initialize(self):
self.handle = gpib.dev(0, self.port)
#gpib.timeout(self.handle, 12) # timeout T3s = 12; check help(gpib)
print "GPIB::%d is initialized" % self.port
print "GPIB handle = %d" % self.handle
try:
# Print IDN info if available
self.query("*IDN?")
except:
pass
def __init__(self, name = 'gpib0', pad = None, sad = 0, timeout = 13, send_eoi = 1, eos_mode = 0): self._own = False if isinstance(name, basestring): self.id = gpib.find(name) self._own = True elif pad is None: self.id = name else: self.id = gpib.dev(name, pad, sad, timeout, send_eoi, eos_mode) self._own = True
def __init__(self, name='gpib0', pad=None, sad=0, timeout=13, send_eoi=1, eos_mode=0):
self._own = False
try:
if isinstance(name, basestring):
self.id = gpib.find(name)
self._own = True
elif pad is None:
self.id = name
else:
self.id = gpib.dev(name, pad, sad, timeout, send_eoi, eos_mode)
self._own = True
except gpib.GpibError as msg:
print("error: could not open device ({name})".format(name=name))
print("libgpib: {msg}".format(msg=msg))
sys.exit(1)
def __init__(self,
name='gpib0',
pad=None,
sad=0,
timeout=13,
send_eoi=1,
eos_mode=0):
self._own = False
if isinstance(name, basestring):
self.id = gpib.find(name)
self._own = True
elif pad is None:
self.id = name
else:
self.id = gpib.dev(name, pad, sad, timeout, send_eoi, eos_mode)
self._own = True
def __init__(self, sad=0, timeout=13, send_eoi=1, eos_mode=0, debug=False, reset=False, interfaces=[]):
if os.geteuid() != 0:
Logging.error("You need to have root privileges to run this script.")
self.started = False
exit(1)
self.debug = debug
self.reset = reset
self.devices = {}
self.started = True
self.drivers = {}
# We go through each driver and look at the attribute DEVICES which contains all devices the driver should be loaded for.
for i in dir(Drivers.GPIB):
if i[0] != "_" and i != "GenericDriver":
driver = getattr(Drivers.GPIB, i)
if hasattr(driver, "DEVICES"):
self.drivers.update(driver.DEVICES)
if self.debug: Logging.info("Drivers for following devices have been loaded: %s" % self.drivers)
self.reset_usb_controller()
# Interface ids are used to determine which usb connections need to be reset
# Example:
"""
Bus 001 Device 006: ID 3923:709b National Instruments Corp. GPIB-USB-HS
"""
self.interfaces = ["3923:709b", "0957:0518"] + interfaces
self.reset_interfaces()
progress_bar = ProgressBar(30)
discovered = {}
for pad in range(0, 31):
id = gpib.dev(0, pad, sad, timeout, send_eoi, eos_mode)
try:
driver_avaliable = False
gpib.clear(id)
gpib.write(id, "*IDN?")
device_id = gpib.read(id, 1024).rstrip()
for i in self.drivers:
if i in device_id:
self.devices[pad] = self.drivers[i](GPIBCommunicator(id, self.reset_interfaces), device_id)
driver_avaliable = True
if not driver_avaliable:
self.devices[pad] = Drivers.GPIB.GenericDriver.GenericDriver(GPIBCommunicator(id, self.reset_interfaces), device_id)
discovered[id] = device_id
except gpib.GpibError:
pass
progress_bar.update(pad)
for i in discovered:
Logging.header("%s on %s" % (discovered[i], i - 16))
Logging.success("Discovery finished successfully!")
def __init__(self, board=0, paddr=0, saddr=None, timeout='10s', send_eoi=True,
eos_char=None, eos_mode=EOS_NONE):
if not 0 <= paddr <= 30:
raise ValueError("Primary address must be in [0, 30].")
if saddr is not None and not 0 <= saddr <= 30:
raise ValueError("Secondary address must be in [0, 30].")
# linux-gpib uses the unfortunate NI convention of
# adding 0x60 to the secondary address
saddr = 0 if saddr is None else saddr + 0x60
timeout = self.TIMEOUTS.index(timeout)
eos = (eos_char or 0) | eos_mode
self._handle = gpib.dev(board, paddr, saddr, timeout, send_eoi, eos)
def scanGpib(board):
if not has_gpib:
warnings.warn(
"Linux-GPIB is not available. ScanGpib with VISA not implemented at the moment.",
RuntimeWarning,
stacklevel=2,
)
else:
for pad in range(1, 31):
listen = gpib.listener(board, pad)
# print(board, pad, listen)
if listen:
print("GPIB" + str(board) + "::" + str(pad))
try:
ud = gpib.dev(board, pad, 0, 10, 1, 0)
if ud > 0:
gpib.write(ud, "*CLS;*IDN?")
description = gpib.read(ud, 256)
print(description.strip().decode("ascii"))
except Exception:
pass
def __init__(self, resource=14, timeDelay=10, numReadings=20, initDelay=1):
try:
self.resource = int(resource)
except ValueError:
print "Invalid resource (numerical values only)"
return
try:
self.timeDelay = int(timeDelay)
if self.timeDelay < 0:
raise ValueError("Negative time delay setting is invalid!")
except ValueError:
# timeDelay negative or non-integer
print "Invalid time delay. Setting default value of 10"
self.timeDelay = 10
try:
self.numReadings = int(numReadings)
if self.numReadings < 0:
raise ValueError("Negative number of readings is invalid!")
except ValueError:
print "Invalid number of readings. Setting default value of 20"
self.numReadings = 20
try:
self.initDelay = int(initDelay)
if self.initDelay < 0:
raise ValueError("Negative init delay setting is invalid!")
except ValueError:
# initDelay negative or non-integer
print "Invalid init delay. Setting default value of 1"
self.initDelay = 1
self.con = gpib.dev(0, self.resource)
self.mean = 0.
self.std = 0.
self.min = 0.
self.max = 0.
return response
def initialise_device(handle): # set up device to assert SRQ/RQS
gpib.write(handle, "*CLS") # Clear status registers
gpib.write(handle, "*SRE 32") # Assert SRQ on Event
return
def show_devid(handle): # Show device ID
print query(handle, "*IDN?")
return
print gpib.version() # Show package version
ud = gpib.dev(board, device) # Open the device
gpib.config(board, gpib.IbcAUTOPOLL, 1) # Enable automatic serial polling
gpib.config(ud, gpib.IbcTMO, gpib.T30s) # Set timeout to 30 seconds
show_devid(ud)
initialise_device(ud)
gpib.write(handle, "*TST;*OPC") # Selftest and request OPC event
# Wait for Timeout or Request Service on device
sta = gpib.wait(ud, gpib.TIMO | gpib.RQS)
if (sta & gpib.TIMO) != 0:
print "Timed out"
else:
print "Device asserted RQS"
stb = gpib.serial_poll(ud) # Read status byte
print "stb = %#x" % (stb)
if (stb & gpib.IbStbESB) != 0: # Check for Event Status bit
esr = int(query(ud, "ESR?")) # Read Event Status Register
def after_parsing(self):
minor = self.parsed.board
pad = self.parsed.primary_address
self.handle = gpib.dev(int(minor), int(pad))
self.interface = Gpib(self.handle)
def get_gpib_device(port: int, timeout=0.5):
device = gpib.dev(0, port)
gpib.timeout(device, get_gpib_timeout(timeout))
return GpibInstrument(device)
def __init__(self, gpib_id_high, gpib_id_low):
"""Initialize the connection to oscilloscope using GPIB."""
self.scope = gpib.dev(gpib_id_high, gpib_id_low)
if DEBUG:
print "DL1540 initialized"
print(self.query("*IDN?"))
def __init__(self, gpib_num, gpib_dev_num, units='mW'):
self._dev = gpib.dev(gpib_num, gpib_dev_num)
self.set_power_units(units)
self._sleep = 0.1
def __init__(self,gpib_address,card=0): self.device = gpib.dev(card,gpib_address)
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Oct 28 20:57:10 2018
@author: jonathan
"""
import gpib
import numpy as np
# GPIB interface 0, address 15
con = gpib.dev(0,15)
status = gpib.write(con, "COMM_FORMAT OFF")
#status = gpib.write(con, "COMM_FORMAT OFF,WORD,BIN")
status = gpib.write(con, "COMM_HEADER OFF")
status = gpib.write(con, "*IDN?")
deviceID = gpib.read(con, 1000).decode()
print("found device: " + deviceID)
# get template
print("fetching template")
status = gpib.write(con, "TEMPLATE?")
template = ""
chunk_size = 1024
keepFetching = True
while keepFetching:
def __init__(self, address, board=0):
self._dev = gpib.dev(board, address)
def __init__(self, addres):
self.dev = gpib.dev(*addres)
self.write('DD 13')
self.write('TYPE Succesfull init"')
def __init__(self, address: int = 25):
assert (1 <= address <= 32), 'address out of range'
self._device_handler = gpib.dev(0, address)
gpib.config(self._device_handler, gpib.IbaEOSrd, 1)
gpib.config(self._device_handler, gpib.IbaEOSchar, 13)
iteration_duration = stop_iteration - start_iteration
mah += c * iteration_duration.total_seconds() / -3.6
wh += c * v * iteration_duration.total_seconds() / -3600
if (stop_iteration -
start_reporting).total_seconds() > reporting_period_sec:
print('%.3f V %.3f A %d mAh %.3f Wh' % (v, c, mah, wh))
start_reporting = stop_iteration
send(ps, 'output off')
stop = datetime.now()
duration = stop - start
print('Discharging done: %s' % (duration))
print('Battery capacity: %d mAh %.3f Wh' % (mah, wh))
# init power supply
ps = gpib.dev(0, addr)
ps_id = query(ps, '*idn?')
print('Using power supply: ', ps_id)
parser = argparse.ArgumentParser()
parser.add_argument('-c', '--charge', nargs='?', const=True, default=False)
parser.add_argument('-d', '--discharge', nargs='?', const=True, default=False)
args = parser.parse_args()
if args.charge:
charge()
if args.discharge:
discharge(ps)
def __init__(self, addres):
self.equipo = gpib.dev(0, addres)
self.addres = addres
def __init__(self,
sad=0,
timeout=13,
send_eoi=1,
eos_mode=0,
debug=False,
reset=False,
interfaces=[]):
if os.geteuid() != 0:
Logging.error(
"You need to have root privileges to run this script.")
self.started = False
exit(1)
self.debug = debug
self.reset = reset
self.devices = {}
self.started = True
self.drivers = {}
# We go through each driver and look at the attribute DEVICES which contains all devices the driver should be loaded for.
for i in dir(Drivers.GPIB):
if i[0] != "_" and i != "GenericDriver":
driver = getattr(Drivers.GPIB, i)
if hasattr(driver, "DEVICES"):
self.drivers.update(driver.DEVICES)
if self.debug:
Logging.info("Drivers for following devices have been loaded: %s" %
self.drivers)
self.reset_usb_controller()
# Interface ids are used to determine which usb connections need to be reset
# Example:
"""
Bus 001 Device 006: ID 3923:709b National Instruments Corp. GPIB-USB-HS
"""
self.interfaces = ["3923:709b", "0957:0518"] + interfaces
self.reset_interfaces()
progress_bar = ProgressBar(30)
discovered = {}
for pad in range(0, 31):
id = gpib.dev(0, pad, sad, timeout, send_eoi, eos_mode)
try:
driver_avaliable = False
gpib.clear(id)
gpib.write(id, "*IDN?")
device_id = gpib.read(id, 1024).rstrip()
for i in self.drivers:
if i in device_id:
self.devices[pad] = self.drivers[i](GPIBCommunicator(
id, self.reset_interfaces), device_id)
driver_avaliable = True
if not driver_avaliable:
self.devices[
pad] = Drivers.GPIB.GenericDriver.GenericDriver(
GPIBCommunicator(id, self.reset_interfaces),
device_id)
discovered[id] = device_id
except gpib.GpibError:
pass
progress_bar.update(pad)
for i in discovered:
Logging.header("%s on %s" % (discovered[i], i - 16))
Logging.success("Discovery finished successfully!")
def __setConnection( self ): self.__interface = gpib.dev( self.__device, self.__address )
def after_parsing(self):
minor = self.parsed.board
pad = self.parsed.primary_address
self.handle = gpib.dev(int(minor), int(pad))
self.interface = Gpib(self.handle)
#!/usr/bin/env python
import datetime
import signal
import sys
import time
import gpib
dc1 = gpib.dev(0, 1) # Agilent 66332A on GPIB bus 0, address 1
# thanks to http://stackoverflow.com/questions/8600161/executing-periodic-actions-in-python
def do_every(period, count, f, *args):
def g_tick():
t = time.time()
count = 0
while True:
count += 1
yield max(t + count * period - time.time(), 0)
g = g_tick()
for i in range(count):
time.sleep(next(g))
f(*args)
t0 = None
def meas():
gpib.write(dc1, 'MEAS:CURR?')
def __init__(self, gpib_num, gpib_dev_num):
self._dev = gpib.dev(gpib_num, gpib_dev_num)