Write Record Response returned with an error in packet header can be successfully processed

If "Write Record Response" (PNS_IF_WRITE_RECORD_RES) is returned with an error in packet header (ulSta) (excepting TLR_E_NO_APPLICATION_REGISTERED and TLR_E_UNKNOWN_COMMAND) the stack will ignore that error if it was multiple-write and  this index was not the last in multiple-write sequence.

Such sequence was observed with Siemens PLC of 1500 family for api/slot/subslot/index=0/0/1/1, the PROFINET RT Tester does "Write Records" for each parameter and returned error in packet header causes "PNIO=PNIO_E_IOD_WRITE_APPL_ERROR" (seen on the bus).