AG34972A.py
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from abstract_instrument import abstract_instrument
import socket
#==============================================================================
ALL_VAL_TYPE = ['DCV', 'ACV', 'DCI', 'ACI', 'RES2W', 'RES4W', 'FREQ']
ALL_CHANNELS = ['101', '102', '103', '104', '105']
ADRESS = "192.168.0.72"
CONF_VAL_TYPE = ['CONF:VOLT:DC', 'CONF:VOLT:AC', 'CONF:CURR:DC', 'CONF:CURR:AC', 'CONF:RES', 'CONF:FRES', 'CONF:FREQ']
#==============================================================================
class AG34972A(abstract_instrument):
def __init__(self, channels, vtypes, adress):
self.adress = adress
self.port = 5025
self.channels = channels
self.vtypes = vtypes
def model(self):
#self.send("*IDN?")
#return self.read()
return "AG34972A"
def connect(self):
print('Connecting to device @%s:%s...' %(self.adress, self.port))
self.sock = socket.socket(socket.AF_INET,
socket.SOCK_STREAM,
socket.IPPROTO_TCP)
self.sock.settimeout(2.0) # Don't hang around forever
self.sock.connect((self.adress, self.port))
self.send("SYST:BEEP")
print(' --> Ok')
print(self.model())
self.configure()
def configure(self):
self.strCh = ''
for ch in self.channels:
self.send('%s (@%s)'%(CONF_VAL_TYPE[ALL_VAL_TYPE.index(self.vtypes[self.channels.index(ch)])], ch))
self.strCh = self.strCh + ch + ','
self.strCh = self.strCh[0:-1]
self.send("ROUT:SCAN (@%s)"%self.strCh)
self.send("TRIG:COUN 1")
def getValue(self):
self.send("INIT")
self.send("FETC?")
return self.read()
def read(self):
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('*RST')
self.sock.close()
def send(self, command):
self.sock.send("%s\n"%command)