I've got PLC V350 and URB-TCP - 2pcs. URB-TCP- I connected to 0 and 2 socket of V350. But If I load programm for 1st URB, after 2nd URB, then 1st is disconnect.
If I load 2nd URB, after 1st URB, then 2nd is disconnect.
Could you give me example, please, how you made it? I think that I've got issue with settings of connection in ladder
Power supply connection (for IO) >>>>Comm Cable >>> EX-A2X>>>>IO-A14-A02 >>>PLC
Sometimes power supply for IO is separate and sw on after PLC power supply. Than no IO Expansion in PLC.
Please try to reset PLC via Info mode and check IO.