Please help me now, I got problem with replacement the CPU S7-1200 1HG31 - 0XB0 by 1BG40 - 0XB0. The old PLC is 1HG31 - 0XB0 firmware 3.0 created by TIA V11 and SCADA was using WinCC Advaced V11. The problem is I have no SCADA source code, PLC code can upload from the old one but SCADA is only RT on a Virtual machine with window XP OS. After upgrade, the SCADA RT can not communicate with new PLC but still communicate with the old one.
Could you please help me to solve the problem
