Hallo Zusammen,
sorry I am not good at writing in german, so I write in english.
I have a communication problem between twincat2 and CX_1020.
I use a crossover cable to connect the PC and CX_1020. and set the IP as follows.
PC, IP address:192.168.254.11
netmask:255.255.0.0

CX, IP1 address:192.168.254.1
netmask:255.255.0.0

CX, IP1 address:192.168.253.2
netmask:255.255.0.0

and I have also deactivated the firewall of both PC and PLC device. but at the moment I ping the IP of PLC on PC, it says :"destination not reachable", then I ping the IP of PC on PLC, it says :"error code 11010". I think over it for several days, but I still cannot find the problem, I hope that I can get help here.

thanks a lot.
Viel Grüße.
Hang