Hi,

I am trying to set up a simulation circuit consisiting of an Siemens s7 PLC and Wincc 6. I have a mpi connection to the cpu, but when the scada is on runtime, I cannot go back online and change the status of markers, etc in S7, it gives a message saying the driver cannot be accessed. Access is only possible once The Wincc runtime is stopped. What the easiest and cheapest way to share the connection resources?

Many thanks,
Harry.H.

 

Hi,

You should be able to set up a screen in WinCC which will allow you to force bits or values in the cpu. WinCC also has the ability to open S7 itself and share the resources.

 

I am using a Siemens serial to mpi convertor, S7 and Wincc 6 both are running on the same PC, however I cannot monitor S7, whilst viewing graphics runtime in wincc, is this correct?. If not how can I share the resources?

thanks!