PROFINET Commander is a PROFINET controller that operates on a Windows PC. Built to be used with TIA Portal (no additional license needed) you can build your network configuration, then import into PROFINET Commander. This gives you quick and easy access to your PROFINET network to test your PROFINET device(s). You can set outputs, read/write records, and watch the device status without having to jump through the hoops of implementing the same functions on a PLC.
You can find more information and download the free version at the following website.