def initialConnect(self,instrumentAddress):
#this prevents the user from hammering this function through the GUI
self.ui.sweepButton.setFocus()
self.ui.sweepButton.setEnabled(False)
try:
#now that the user has selected an address for the keithley, let's connect to it. we'll use the thread safe version of the visa/gpib interface since we have multiple threads here
self.k = gpib(instrumentAddress,useQueues=True,timeout=None)
#self.k.task_queue.put(('clear',()))
#self.sendCmd(':abort')
self.sendCmd("*rst")
#self.sendCmd('*cls')
self.k.task_queue.put(('ask',('*idn?',)))
try:
ident = self.k.done_queue.get(block=True,timeout=10)
self.ui.statusbar.showMessage("Connected to " + ident,self.messageDuration)
except:
ident = []
# let's be sure the firmware and model are what we expect (and what's tested to work)
modelString = "MODEL 2400"
firmwareString = "C33"
if ident.__contains__(modelString):
if ident.__contains__(firmwareString):
self.k.task_queue.put(('ask',(':system:mep:state?',)))
isSCPI = self.k.done_queue.get()
if isSCPI == '0':
if self.initialSetup():
self.ui.sweepButton.setEnabled(True)
self.ui.sweepButton.setFocus()
self.ui.sweepButton.setDefault(True)
else:
self.closeInstrument()
self.ui.statusbar.showMessage("Setup failed")
else:
self.closeInstrument()
self.ui.statusbar.showMessage("SCPI comms mode detected")
msgBox = QMessageBox()
msgBox.setWindowTitle("SCPI mode detected. Please sqitch to 488.1 mode.")
message488 = \
"Perform the following steps to select the 488.1 protocol:\n" + \
"1. Press MENU to display the MAIN MENU.\n" + \
"2. Place the cursor on COMMUNICATION and press ENTER to display the COMMUNICATIONS SETUP menu.\n" + \
"3. Place the cursor on GPIB and press ENTER to display the present GPIB address.\n" + \
"4. Press ENTER to display the GPIB PROTOCOL menu.\n" + \
"5. Place the cursor on 488.1 and press ENTER.\n" + \
"6. Use the EXIT key to back out of the menu structure."
msgBox.setText(message488);
msgBox.exec_();
else:
self.closeInstrument()
self.ui.statusbar.showMessage('{0:s} found, firmware {1:s} not detected. Please upgrade firmware to continue.'.format(modelString,firmwareString))
else:
self.closeInstrument()
self.ui.statusbar.showMessage('Could not detect instrument with "{0:s}"'.format(modelString))
except:
self.closeInstrument()
self.ui.statusbar.showMessage("Connection failed")
def initialConnect(self, instrumentAddress):
#this prevents the user from hammering this function through the GUI
self.ui.sweepButton.setFocus()
self.ui.sweepButton.setEnabled(False)
try:
#now that the user has selected an address for the keithley, let's connect to it. we'll use the thread safe version of the visa/gpib interface since we have multiple threads here
self.k = gpib(instrumentAddress, useQueues=True, timeout=None)
#self.k.task_queue.put(('clear',()))
#self.sendCmd(':abort')
self.sendCmd("*rst")
#self.sendCmd('*cls')
self.k.task_queue.put(('ask', ('*idn?', )))
try:
ident = self.k.done_queue.get(block=True, timeout=10)
self.ui.statusbar.showMessage("Connected to " + ident,
self.messageDuration)
except:
ident = []
# let's be sure the firmware and model are what we expect (and what's tested to work)
modelString = "MODEL 2400"
firmwareString = "C33"
if ident.__contains__(modelString):
if ident.__contains__(firmwareString):
self.k.task_queue.put(('ask', (':system:mep:state?', )))
isSCPI = self.k.done_queue.get()
if isSCPI == '0':
if self.initialSetup():
self.ui.sweepButton.setEnabled(True)
self.ui.sweepButton.setFocus()
self.ui.sweepButton.setDefault(True)
else:
self.closeInstrument()
self.ui.statusbar.showMessage("Setup failed")
else:
self.closeInstrument()
self.ui.statusbar.showMessage(
"SCPI comms mode detected")
msgBox = QMessageBox()
msgBox.setWindowTitle(
"SCPI mode detected. Please sqitch to 488.1 mode.")
message488 = \
"Perform the following steps using the buttons on your sourcemeter to select the 488.1 protocol:\n" + \
"1. Press MENU to display the MAIN MENU.\n" + \
"2. Place the cursor on COMMUNICATION and press ENTER to display the COMMUNICATIONS SETUP menu.\n" + \
"3. Place the cursor on GPIB and press ENTER to display the present GPIB address.\n" + \
"4. Press ENTER to display the GPIB PROTOCOL menu.\n" + \
"5. Place the cursor on 488.1 and press ENTER.\n" + \
"6. Use the EXIT key to back out of the menu structure."
msgBox.setText(message488)
msgBox.exec_()
else:
self.closeInstrument()
self.ui.statusbar.showMessage(
'{0:s} found, firmware {1:s} not detected. Please upgrade firmware to continue.'
.format(modelString, firmwareString))
else:
self.closeInstrument()
self.ui.statusbar.showMessage(
'Could not detect instrument with "{0:s}"'.format(
modelString))
except:
self.closeInstrument()
self.ui.statusbar.showMessage("Connection failed")
def run(self):
try:
resourceNames = gpib().findInstruments()
except:
resourceNames = ["None found"]
self.foundInstruments.emit(resourceNames)
def run(self):
try:
resourceNames = gpib().findInstruments()
except:
resourceNames = ["None found"]
self.foundInstruments.emit(resourceNames)
