Index: Components/PN_Controller/Sources/Pnm_ctlrpc.c
===================================================================
--- Components/PN_Controller/Sources/Pnm_ctlrpc.c	(revision 74198)
+++ Components/PN_Controller/Sources/Pnm_ctlrpc.c	(working copy)
@@ -2421,28 +2421,31 @@
 
 
 static void
-Pnm_Rpc_Read_cnf(PNM_AR_T *ptAR, PN_PNIOSTATUS_E lPnio)
+Pnm_Rpc_Read_cnf(PNM_AR_T *ptAR, PN_PNIOSTATUS_E lStatusPnio)
 {
   /* in contrast to default spec we implement pdu checking and data storing in
    * ctlrpc */
   PN_RPC_STATE_T tState;
+  PN_PNIOSTATUS_E lPnio;
 
-  if(PNIO_S_OK == lPnio)
-    lPnio = Pn_Rpc_ParseResponse(&tState, Pnm_Rpc_Client_byAR(ptAR));
-  else
-    Pnm_AR_LogEvent(ptAR, PNM_LOGBOOK_EVENT_AR_RPC_READ_FAILED,
-        lPnio);
-
-  if(PNIO_S_OK == lPnio)
+  lPnio = Pn_Rpc_ParseResponse(&tState, Pnm_Rpc_Client_byAR(ptAR));
+  if (lPnio != PNIO_E_RMPM_CONNECT_ARGS_LEN_INVALID)
   {
     const PN_BLOCKHEAD_T *ptPdu = Pn_Rpc_Recv_NextPdu(&tState);
+    PN_PNIOSTATUS_E lBlockHeaderPnio = PNIO_S_OK;
 
+    /* TODO: Due to an software architecture incoherency the RPC response status was already previously read. */
+    /* First time: Pnm_Rpc_AR_CallCnf_job() */
+    /* Second time: Pn_Rpc_ParseResponse() */
+    assert(lPnio == lStatusPnio);
+
     /* read response block must be first block */
-    if(!ptPdu)
-      lPnio = PNIO_E_RTA_PROTOCOL_RPC_READ_ERR;
-
-    while(ptPdu && PNIO_S_OK == lPnio)
+    if (ptPdu == NULL)
     {
+      lBlockHeaderPnio = PNIO_E_RTA_PROTOCOL_RPC_READ_ERR;
+    }
+    else
+    {
       uint16_t usType = NTOH16(ptPdu->usType);
 
       switch(usType)
@@ -2452,11 +2455,11 @@
          * before we can retrieve the data! */
         Pn_Rpc_Recv_FinishPdu(&tState, ptPdu);
 
-        lPnio = Pnm_Rpc_DecodeIodrResBlock(ptAR, &tState, ptPdu);
+        lBlockHeaderPnio = Pnm_Rpc_DecodeIodrResBlock(ptAR, &tState, ptPdu);
         break;
       default:
         Pn_Rpc_Recv_FinishPdu(&tState, ptPdu);
-        lPnio = PNIO_E_RMPM_CONNECT_UNKNOWN_BLOCKS;
+        lBlockHeaderPnio = PNIO_E_RMPM_CONNECT_UNKNOWN_BLOCKS;
         break;
       }
 
@@ -2467,25 +2470,20 @@
       ptPdu = Pn_Rpc_Recv_NextPdu(&tState);
     }
 
-    if(PNIO_S_OK != lPnio)
-      lPnio = PNIO_E_RTA_PROTOCOL_RPC_READ_ERR;
+    if (lBlockHeaderPnio != PNIO_S_OK)
+      lPnio = lBlockHeaderPnio;
+    else
+      lPnio = lStatusPnio;
   }
 
-  if(PNIO_S_OK != lPnio)
-  {
-    PNM_AR_ACYCLIC_SERVICE_RECORD_T *ptService = Pnm_CTLRDI_GetServiceCnf(ptAR);
+  PNM_AR_ACYCLIC_SERVICE_RECORD_T *ptService = Pnm_CTLRDI_GetServiceCnf(ptAR);
+  const uint16_t usIndex = ptService ? ptService->usIndex : 0;
 
-    if(ptService)
-      ptService->ulPnio      = lPnio;
-  }
-
-  { /* generate RM Read confirmations */
-    const PNM_AR_ACYCLIC_SERVICE_RECORD_T *ptService = Pnm_CTLRDI_GetService(ptAR);
-    const uint16_t usIndex = ptService ? ptService->usIndex : 0;
-
-    Pnm_CTLSM_RM_ReadWrite_cnf(ptAR, lPnio, usIndex);
-    Pnm_CTLRDI_RM_Read_cnf(ptAR);
-  }
+  /* generate RM Read confirmations */
+  if (ptService != NULL)
+    ptService->ulPnio = lPnio;
+  Pnm_CTLSM_RM_ReadWrite_cnf(ptAR, lPnio, usIndex);
+  Pnm_CTLRDI_RM_Read_cnf(ptAR);
 }