HI All, 

I'm using operator 7.60 (ABB version)  with ModRtu32  in TCP/IP to a ABB AC500 cpu.
I'm able to write and read some bit and word, but after few seconds the comunication breaks down and restarts automatically in a continuous loop.
The PLC CPU is running ok, I'm sure because there is another SCADA panel (IX developer) connecting and working on the same PLC CPU (setted to manage 12 connections).

Any idea how to debug this strange behaviour? 

Thanks in advance