Hi there!
I use a Simatic PC Adapter 6ES7 972-0CB20-0XA0 with TIA Portal V11 SP2 but cannot connect to an S7-314C 2 DP.
It worked a week ago. Now I get this error message:
"A connection between your PC/programming device and the PLC cannot be established."
140:17090
All the LEDs are ON (MPI, Power, USB).
In the Windows Device Manager it sais that the device is working properly. I have uninstalled the driver from there and after plugging in the USB, the usuall things happened: New hardware found, it is working properly etc. (Win XP Pro SP2).
I have tried the adapter with another S7 300 CPU. Same thing happens with same error message.
I have tried to install the PC Adapter Driver V2.0, but the installer sais that I have V8.2.
I have tried to connect also without a project, just using "Update accessible devices". Same error message.
If I set the Adapter properties to "Automatic protocol detection", I get the following message:
"The bus parameters could not be calculated automatically (online). There are no stations on the bus sending bus parameter frames. Set the MPI/Profibus parameters manually."
I also tried different baud rates without any success.
Any suggestions?
BR
Attila
I use a Simatic PC Adapter 6ES7 972-0CB20-0XA0 with TIA Portal V11 SP2 but cannot connect to an S7-314C 2 DP.
It worked a week ago. Now I get this error message:
"A connection between your PC/programming device and the PLC cannot be established."
140:17090
All the LEDs are ON (MPI, Power, USB).
In the Windows Device Manager it sais that the device is working properly. I have uninstalled the driver from there and after plugging in the USB, the usuall things happened: New hardware found, it is working properly etc. (Win XP Pro SP2).
I have tried the adapter with another S7 300 CPU. Same thing happens with same error message.
I have tried to install the PC Adapter Driver V2.0, but the installer sais that I have V8.2.
I have tried to connect also without a project, just using "Update accessible devices". Same error message.
If I set the Adapter properties to "Automatic protocol detection", I get the following message:
"The bus parameters could not be calculated automatically (online). There are no stations on the bus sending bus parameter frames. Set the MPI/Profibus parameters manually."
I also tried different baud rates without any success.
Any suggestions?
BR
Attila