Prosoft-technology MVI56E-LDM Manual de usuario Pagina 135

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ControlLogix Platform "C" Programmable CIP API Functions
Linux Application Development Module Developer's Manual
ProSoft Technology, Inc. Page 129 of 264
March 12, 2014
OCXcip_GetStructMbrInfo
Syntax
int OCXcip_GetStructMbrInfo(OCXHANDLE apihandle,
OCXTAGDBHANDLE tdbHandle,
WORD hStruct,
Word mbrId
OCXCIPTAGDBSTRUCTMBR *pStructMbrInfo);
Parameters
apiHandle
handle returned by previous call to OCXcip_Open
tdbHandle
handle created by previous call to
OCXcip_CreateTagDbHandle
hStruct
Nonzero structure handle from previous
OCXcip_GetSymbolInfo or OCXcip_GetStructMbrInfo
call
mbrId
Member identifier (0 through numMbr-1)
pStructMbrInfo
Pointer to structure member info variable - all members set if
success:
name = NULL terminated name string daType = Structure
member data type
hStruct = Zero if member is a base type, nonzero for structure
daOfs = Byte offset of member data in structure data block
bitId = Bit ID (0 - 7) if daType is OCX_CIP_BOOL and BOOL
normalization is off, or daType is
OCX_CIP_TAGDB_FATYPE_NORM_BITMASK.
arrDim = Member array dimensions if array, 0 = not array
dispFmt = Recommended display format
fAttr = Bit masked attribute flags where:
OCXCIPTAGDBSTRUCTMBR_ATTR_ALIAS = Indicates member is
an alias for (or within) another member
baseMbrId = Alias base member ID (0 = numMbr if alias flag is
set)
Description
This function gets the structure member information from the tag database. A
tag database must have been previously built with OCXcip_BuildTagDb. This
function does not access the device or verify the device program version.
Return Value
OCX_SUCCESS
Struct info was retrieved successfully
OCX_ERR_NOACCESS
apihandle or tdbHandle is invalid
OCX_ERR_BADPARAM
hStruct or mbrId invalid
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