Siemens SIMATIC S5 Manual

Also see for SIMATIC S5: Manual Manual Manual Manual System manual

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Data Transmission by Accessing Layer 2 ServicesS5-95U, SINEC L2Figure 8-9 shows the request, confirmation and indication structures for the SDN serviceFigure 8-9. Structure of Requests, Confirmations and Indications for the SDN Servicerem_add_segmentLogical segment address;always enter FFHrem_add_stationAddress of the destinationstation (1 to 126 or 127 formulticast)Destination SAP 0 to 62,FF (=default SAP 64)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaRequestcom_classFDL_Request=00HByteaaaaaaaaaaaaaaaaaaaa0Confirmationcom_classConfirmation=01 HByteaaaaaaaaaaaaaaaaaaaa0aaaaaaaaaaaaaaaaaaaa1 user_idID assigned in connection witha requestaaaaaaaaaaaaaaaaaaaa1Indicationcom_classIndication=02HByteaaaaaaaaaaaaaaaa0aaaaaaaaaaaaaaaa1 irrelevantuser_idUser-definable IDaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa8...249aaaaaaaaaaaaaaa4 Bits 0 to 30aaaaaaaaaaaaaaa5aaaaaaaaaaaaaaa6aaaaaaaaaaaaaaa7Bits 4 to 7service_classPriority ofsend framelow=0 H orhigh=1HSend data(0 to 242 bytes)service_codeType of service:SDN=01Haaaaaaaaaaaaaaa2link_status( Table 8-6 )aaaaaaaaaaaaaaa3aaaaaaaaaaaaaaa4Destination SAP 0 to 62,FF (=default SAP 64)rem_add_stationAddress of the destinationstation (1 to 126)aaaaaaaaaaaaaaa5aaaaaaaaaaaaaaa6aaaaaaaaaaaaaaa7 rem_add_segmentLogical segment address;is always FFHBits 0 to 30Bits 4 to 7service_classPriority of thesend framelow=0 H orhigh=1Hservice_codeType of service requested:SDN=01 Haaaaaaaaaaaaaaa2aaaaaaaaaaaaaaa3 irrelevantservice_codeType of service: SDN=01 H orSDN Multicast =7FHaaaaaaaaaaaa2irrelevantaaaaaaaaaaaa3aaaaaaaaaaaa4Source SAP 0 to 62,FF (=default SAP 64)rem_add_stationAddress of source station(1 to 126)aaaaaaaaaaaa5aaaaaaaaaaaa6aaaaaaaaaaaa7 rem_add_segmentLogical segment address;is always FFHBits 0 to 30Bits 4 to 7service_classpriority ofreceive framelow=0 H orhigh=1HReceive data(0 to 242 bytes)aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa8...249aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa Must be specified by the user in the request header8-20EWA 4NEB 812 6112-02