hie,i have created a SCADA system using IGSS demo50.i want it to communicate with Siemens Simanti S7 plc simulator,these are 2 different softwares in the same computer,hw do i link them.reason is i currently dont have an external PLC,so have 2 simulate the SCADA software using a simulator.help me out pliz.m desperate b4 i buy the S7 300 plc.