LS350.py
1.76 KB
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from abstract_instrument import abstract_instrument
import socket
#==============================================================================
ALL_VAL_TYPE = ['TEMP', 'RES']
ALL_CHANNELS = ['a', 'b', 'c', 'd']
ADDRESS = "192.168.0.12"
CONF_VAL_TYPE = ['krdg?', 'srdg?']
#==============================================================================
class LS350(abstract_instrument):
def __init__(self, channels, vtypes, address):
self.address = address
self.port = 7777
self.channels = channels
self.vtypes = vtypes
def model(self):
#self.send("*IDN?")
#return self.read()
return "LS350"
def connect(self):
print('Connecting to device @%s:%s...' %(self.address, self.port))
self.sock = socket.socket(socket.AF_INET,
socket.SOCK_STREAM,
socket.IPPROTO_TCP)
self.sock.settimeout(10.0) # Don't hang around forever
self.sock.connect((self.address, self.port))
print(' --> Ok')
print(self.model())
self.configure()
def configure(self):
self.strCh = ''
for ch in self.channels:
self.strCh = self.strCh + '%s %s;'%(CONF_VAL_TYPE[ALL_VAL_TYPE.index(self.vtypes[self.channels.index(ch)])], ch)
self.strCh = self.strCh[0:-1]
print(self.strCh)
def getValue(self):
self.send(self.strCh)
return self.read()
def read(self):
self.send("++read eoi")
ans = ''
nb_data_list = []
nb_data = ''
try:
while ans != '\n':
ans = self.sock.recv(1)
nb_data_list.append(ans) # Return the number of data
list_size = len(nb_data_list)
for j in range (0, list_size):
nb_data = nb_data+nb_data_list[j]
return nb_data
except socket.timeout:
print "Socket timeout error when reading."
raise
def disconnect(self):
self.send('MODE0')
self.sock.close()
def send(self, command):
self.sock.send("%s\n"%command)