def comm_check():
global comm
global updateRunning
global connected
global connectionInProgress
try:
connectionInProgress = True
ip = selectedIPAddress.get()
port = int(selectedProcessorSlot.get())
if (not connected or comm.IPAddress != ip or comm.ProcessorSlot != port or changePLC.get() == 1):
if not comm is None:
comm.Close()
comm = None
comm = PLC()
comm.IPAddress = ip
if checkVarMicro800.get() == 0:
comm.ProcessorSlot = port
comm.Micro800 = False
else:
comm.Micro800 = True
plcTime = comm.GetPLCTime()
lbConnectionMessage.delete(0, 'end')
lbErrorMessage.delete(0, 'end')
if plcTime.Value is None:
if btnStop['state'] == 'disabled':
btnStart['state'] = 'disabled'
btnStart['bg'] = 'lightgrey'
lbConnectionMessage.insert(1, ' Not Connected')
lbErrorMessage.insert(1, ' ' + plcTime.Status)
connected = False
root.after(5000, start_connection)
else:
lbConnectionMessage.insert(1, ' Connected')
if not updateRunning:
updateRunning = True
connected = True
connectionInProgress = False
if btnStop['state'] == 'disabled':
btnStart['state'] = 'normal'
btnStart['bg'] = 'lightgreen'
else:
start_update()
changePLC.set(0)
except Exception as e:
if app_closing:
pass
else:
print(str(e))
# discover devices
devices = comm.Discover()
for device in devices.Value:
print(device.IPAddress)
print(' Product Code: ' + device.ProductName + ' ' +
str(device.ProductCode))
print(' Vendor/Device ID:' + device.Vendor + ' ' +
str(device.DeviceID))
print(' Revision/Serial:' + device.Revision + ' ' +
device.SerialNumber)
print('')
# get plc time for clx, and compact
if not is_micro800:
response = comm.GetPLCTime()
print(response.Value)
# ask for a controller / global tag
controller_tag = input(
"""Enter a controller tag (CLX/Compactlogix), or global variable (Micro8xx):
Examples:
tag_name
array_name[index]
udt_name.tag_member\n
""")
# using new 0.4.0 response object
# fetch one controller/global tag
response = read_tag(controller_tag)
if response.Value is not None:
