def __init__(self, port='/dev/ttyUSB0', addr=0):
# clr turns off power
self.gpib = PUGpib(port=port,
addr=addr,
clr=False,
eos=3,
ser_timeout=0.4,
gpib_timeout=0.9)
def __init__(self, port='/dev/ttyUSB0', clr=True):
self.gpib = PUGpib(port=port,
addr=16,
clr=clr,
eos=3,
ser_timeout=1.0,
gpib_timeout=0.9)
self.func = None
self.volt_dc_re = None
self.curr_dc_re = None
def __init__(self, port='/dev/ttyUSB0', clr=True, ident=True):
self.gpib = PUGpib(port=port,
addr=16,
clr=clr,
eos=3,
ser_timeout=1.0,
gpib_timeout=0.9)
self.func = None
self.vendor = None
self.model = None
self.sn = None
if ident:
vendor, model = self.ident()
if (vendor, model) != ('KEITHLEY INSTRUMENTS INC.', 'MODEL 2750'):
raise ValueError('Bad instrument: %s, %s' % (vendor, model))
