PROFIBUS DP-Master

The Application Interface 183/315
Packet Structure Reference
typedef struct PROFIBUS_FSPMM2_READ_CNF_NEG_Ttag
{
TLR_UINT32 ulCRef;
TLR_UINT32 ulSlot;
TLR_UINT32 ulIndex;
TLR_UINT32 ulLength;
TLR_UINT8 bErrorDecode;
TLR_UINT8 bErrorCode1;
TLR_UINT8 bErrorCode2;
TLR_UINT8 bReserved;
} PROFIBUS_FSPMM2_READ_CNF_NEG_T;
#define PROFIBUS_FSPMM2_READ_CNF_NEG_SIZE (sizeof(PROFIBUS_FSPMM2_READ_CNF_NEG_T))
Packet Description
structure PROFIBUS_FSPMM2_PACKET_READ_CNF_NEG _T
Type: Negative Confirmation
Area Variable Type Value / Range Description
tHead
tData
structure TLR_PACKET_HEADER_T
ulDest UINT32 Destination queue handle, unchanged
ulSrc UINT32 Source queue handle, unchanged
ulDestId UINT32 ulAPM2Id Destination end point identifier, unchanged
ulSrcId UINT32 ulFSPMM2d Source end point identifier, unchanged
ulLen UINT32 20 Packet Data Length in bytes
ulId UINT32 0 ... 2 32 -1 Packet Identification as unique number generated by
the Source Process of the Packet
ulSta UINT32 See section 7.2 Error Codes of the FSPMM2-Task
ulCmd UINT32 0x4407 PROFIBUS_FSPMM2_CMD_READ_CNF - Command
ulExt UINT32 0 Extension, unchanged
ulRout UINT32 x Routing, do not change
structure PROFIBUS_FSPMM2_READ_CNF_NEG_T
ulCRef UINT32 Connection Reference
ulSlot UINT32 0 ... 254 Slot
ulIndex UINT32 0 ... 254 Index
ulLength UINT32 0 ... 240 Number of bytes of the data block that has been read.
bErrorDecode UINT8 0 ... 255 A value of 128 here indicates DP V1 error handling is
applied.
bErrorCode1 UINT8 0 ... 255 ErrorCode1, see section 5.3.2.2.
bErrorCode2 UINT8 0 ... 255 ErrorCode2, meaning depends on bErrorCode1
bReserved
UINT8
Table 106: PROFIBUS_FSPMM2_CMD_READ_CNF_NEG - Negative Confirmation of Read Command
PROFIBUS DP-Master |
DOC061001API12EN | Revision 12 | English | 2010-12 | Released | Public © Hilscher, 2006-2010