HP53132A.py
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from abstract_instrument import abstract_instrument
import socket
#==============================================================================
ALL_VAL_TYPE = ['FREQ'] #, 'PERIOD']
ALL_CHANNELS = ['1'] #, '2']
ADDRESS = "192.168.0.52"
CONF_VAL_TYPE = ['CONF:FREQ'] #, 'CONF:PERIOD']
#==============================================================================
class HP53132A(abstract_instrument):
def __init__(self, channels, vtypes, address):
self.address = address
self.port = 1234
self.gpib_addr = 12
self.channels = channels
self.vtypes = vtypes
def model(self):
#self.send("*IDN?")
#return self.read()
return "HP53132A"
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))
self.init_prologix()
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 + '(@%s),'%ch
#self.strCh = self.strCh[0:-1]
#self.send('FORMAT ASCII')
#self.send('ROUT:SCAN (@%s)'%self.strCh)
#self.send('TRIG:COUN 1')
self.send('*RST')
#self.send('*CLS')
#self.send('*SRE 0')
#self.send('*ESE 0')
self.send(':FUNC "FREQ 1"')
self.send(':FREQ:ARM:STAR:SOUR IMM')
self.send(':FREQ:ARM:STOP:SOUR TIM')
self.send(':FREQ:ARM:STOP:TIM 1')
self.send(':ROSC:SOUR EXT')
self.send(':ROSC:EXT:CHECK OFF')
#self.send(':STAT:PRES')
self.send(':INIT:CONT ON')
def getValue(self):
self.send('FETC?')
#self.send('READ:FREQ?')
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('*RST')
self.sock.close()
def send(self, command):
self.sock.send("%s\n"%command)
def init_prologix(self):
try:
self.sock.send("++mode 1\n") # Set mode as CONTROLLER
self.sock.send('++addr ' + str(self.gpib_addr) + '\n') # Set the GPIB address
self.sock.send('++eos 3\n') # Set end-of-send character to nothing
self.sock.send("++eoi 1\n") # Assert EOI with last byte to indicate end
self.sock.send("++read_tmo_ms 2750\n") # Set read timeout
self.sock.send("++auto 0\n") # Turn off read-after-write to avoid
# "Query Unterminated" errors
except self.socket.timeout:
print "Socket timeout"
raise
except self.socket.error as er:
print "Socket error: " + str(er)
raise
except Exception as er:
print "Unexpected error: " + str(er)
raise