PDRealData read response may contain unexpected PeerPortName in case of Non-Profinet neighbor

If a LLDP-capable device is connected to Profinet IO Device v4 implementation and the LLDP frames PortID uses a specific coding it may happen that Profinet object PDPortDataReal reports this PortID 1:1 although its value is not allowed according to Profinet specification recommendations.

Issue occurs e.g. when using the certification tool TED Check 2.35.2 together with recommended Huawai switch. Using recommended Cisco Switch the issue does not occur due to different coding used by Cisco.