Checking communication loss

[LaptosPirose]

I am using pycomm3 to communicate with a Logix PLC and everything is working weel, but how can i do to check communication all time and don't crash the programm?
When I test te continuous communication and take off the Ethernet cable, the programm stop. How can I check this e try to reestart the communication? The simple part of programm is below and my attempt to check datas withi nosuccess.

from pycomm3 import LogixDriver
class Connect():
def init(self, plc_ip : str):
self.__plc_ip = plc_ip
self.__plc = self.__plc_connect()

@property
def get_plc_ip(self):
    return self.__plc_ip
@property
def get_plc_connected(self):
    if self.__plc != 'failed':
        __plc_connected = LogixDriver(self.__plc)
        return __plc_connected
    else:
        return 'failed'
def __plc_connect(self):
    plc = LogixDriver(self.__plc_ip)
    try:
        __plcmap = plc.discover()
        __plc_encontrado = False
        for __i in __plcmap:
            if (self.__plc_ip == __i['ip_address']):
                print(f"PLC de IP {__i['ip_address']} existe!" )
                __plc_encontrado = True
                __ip_encontrado = __i['ip_address']
        if not __plc_encontrado:
                print(f'PLC de IP {self.__plc_ip} não encontrado')
                return 'failed'
        return __ip_encontrado
    except ConnectionError:
        print('Tentativa de conexão falhou!')

def main():
from rockwell_modules.class_connect import Connect as Comm

acople = Comm('192.168.0.96')
acople = acople.get_plc_connected

if acople != 'failed':
    acople.open()
    print(acople)
    for i in range(1,1000):
        try:
            print(acople.read('DKZ1_Numero_Falha_ETB').value)
        except ConnectionError:
            acople.close()

if name == 'main':
main()

[ottowayi]

I think if you broaden your except block to except Exception it should work better, ConnectionError is not one that I think is raised by pycomm3. When you catch the error, you could try to reconnect or choose to exit.