Profinet Error (PNIO0011): The Profinet device '...' cannot operate in RT class IRT. It is not supported by the assigned Profinet Controller.
The controller used does not support Isochronous RealTime (IRT) for your Profinet network. The device mentioned in the error message, however, runs in IRT mode.
Remedy
Either remove the respective device or select the RT class 'RT' in order to switch it to RealTime (RT) mode. This is done in the 'Interface' editor of the device.
To open this editor, double-click the error message. Alternatively, you can double-click the corresponding node in the PLANT.
Example:
